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Experimental Optical Communications Links 
News Groups, Email Reflectors and Message Boards:
alt.lasers Australian Optical DX Group Carolina Flashers Photonics Group Free Space LASER Communications laserpointerforums.com photonlexicon.com sci.optics UKNanowaves Free Space LASER Communications email reflector archive Laser archives in text format March 1996 to Jan 2011 (3 files) *be sure to turn on word wrapping in your text reader as there is some formatting chaos Below is a listing of links compiled on the subject of Optical Communications. If you know of a link that should be included or want to report/update a bad link, just send an email to "toast" at this domain with the subject "missing link". |
Optical Communication Websites: Carolina Flashers DJ1WF F1AVY G0MRF G3PHO G4JNT G7JTT G8AGN G8LSD JA1ATI Karel Kulhavy K0SM K3PGP KA7OEI KB9II Mike Couture M0ELS N1BUG N6IZW N9JIM/6 OH2AUE OM2ZZ Rudolf Tim Toast VE7DXG VK3AML VK3TDV W1VLF WA4QAL WA6EJO Weak Signal RF/Optical Software Argo AstroVideo Audacity Baudline DigiPan Fldigi Iris Jason LaserScatter MultiPSK PSK31 RegiStax Spectran Spectrum Lab Vspec WinScope WOLF WSJT Wireless.org.uk |
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Optical Links
(in order of appearance) Laser Email Reflector - Free Space LASER Communications K3PGP - Optical Experiments Laser Safety - Sam's Laser FAQ LIA - Laser Institute of America Kentek - Laser Safety Products Ronja - Twibright Labs Milan Karakas - Home Built Lasers Big-List.com - Used Test Equipment and Semiconductor Production Equipment Peltier Device - Thermoelectric Cooler/Heater/Generator Modules Manufacturers Photodiode Transimpedance Amplifier - Spreadsheet Models VLF Baseband Transverter - Schematic Laser Diode Modulator - Schematic Audio Tester - Spectrum Analysis Software AMSAT Journal - Infrared Laser on P3-D (pdf) YACE - AMSAT OSCAR 40 Pictures Sam's Laser FAQ - A Practical Guide to Lasers for Experimenters and Hobbyists Diode Lasers - Sam's Laser FAQ Toshiba - Complete Product List Baudline - Spectrum Analysis Software Central States VHF Society - Home Page IrDA - Specifications for Infrared Wireless Communication N9JIM/6 - Amateur Radio Laser Communications Son of Spectre - News Article Helmut Singer - Electronic Test Equipment Anchor Optics - Commercial and Experimental Grade Optics GLFER - QRSS/DFCW Transceiver Software N9JIM/6 - Laser Links Analog Devices - Signal Processing Equipment QTH Net - Mailing Lists Roithner Laser - Lasers, Parts and Accessories Glolab - Pyroelectric Sensor Information Spectronstar - Project STAR Spectrometer ASP - Astronomical Society of the Pacific Bes Optics - Schott filter glasses Magic Focus - 5x Magnifying Mirrors G7JTT - Optical Experiments ePanorama Net - Laser Links Physics Lab Manual - The Acousto-Optic Modulator and Optical Heterodyning Star Astronomy - Telescope Making Links Matthew Astley - Protocol for Self-alignment of Laser-through-Air Ethernet Links (pdf) Discover Circuits - Light Beam Communications Circuits SkyPointer - Green Laser Pointer Diode Laser Power Supplies - Sam's Laser FAQ QTH Net - The Laser Archives The Fresnel Lens - The Shining Eye of the Lighthouse Humidity Sensors - HS1101 / THS1101 Humidity Sensors Experimental Laser Data Link - Circuit Plans Laser Link Communicator - Construction Project Rudolf's - Laser Communication Project fSONA - Free Space Optical Networking AOptix - Free Space Data Communications Attochron - Free Space Ultrashort-Pulse Optics LSA - Wireless Laser Communication Systems Canobeam - Free Space Data Communications UPN Laser Transceiver - Construction Project Luxeon - High Power LED's W1VLF - Optical Experiments Murphys Surplus - Surplus Electronic and Industrial NRaD Technical Document 2706 - Marine Boundary Layer Refractive Effects in the Infrared Atmospheric Info - Laser propagation information JPL - The Interplanetary Network Progress Report Ramsey Electronics - Electronics and Hobby Kits ARRL - A Laser Communications Primer (pdf) K0SM - Andy's laser stuff HY-Q - Frequency Control Products Robotics - Robotics Club of India Alchemy with light shocks physicists - News Article Roithner Laser - Selective Photodiodes Amateur Radio Laser Communications - Aiming or Positioning the Laser Thor Labs - Fiber Optics, Laser Diodes, Optical Instrumentation Kerry's Page - Laser Projects Melles Griot - Beam Expander High Power Laser Diode - Documentation (pdf) Digikey - Home Page Cool Edit Pro - Cool Edit Pro is now Adobe Audition Audacity - Free Cross-Platform Sound Editor G0MRF - A Simple Laser Communication System Lancos - Electronics, Embedded Systems and Programming Projects HESS Gamma-Ray Telescope - Astronomy Picture of the Day Clairex - Optoelectronic Components and Assemblies K3PGP - Visual EME at 532nm International Peace Star - Inflatable Earth Orbiting Reflective Sphere ILRS - International Laser Ranging Service ILRS - Satellite Link Budget Evaluation Starshine - A Disco Ball in Space Starshine - Mirror Grinding and Polishing Starshine - Reentry Predictions Sunsat - Science Payloads and Experiments DL4YHF - Spectrum Lab Audio Spectrum Analyzer Techni-Tool - Electronics Test Equipment Avalanche Photodiode - Datasheet (pdf) VSO - Visual Satellite Observer's Home Page Sam's Laser FAQ - Home-Built Pulsed Solid State Laser Laser Guide Star - News Article LLNL - Lawrence Livermore National Laboratory Adaptive Optics Systems - Los Alamos National Laboratory Adaptive Optics - MK LGS Laser System (pdf) UO-11 - Last-Minute Satellite Turns 20 WA4QAL - Laser Demo Mailman QTH Net - FAQ Intor - Optical Interference Filters Films and Filters - Spectral Response Photo Net - UV Filters LWCA - Longwave Home Page Sound Card Tests - Sound Card Stability Tests Applied to PSK31 Ramsey Electronics - Laser Beam Audio Communicator PSK31 - Official Homepage Stratosphere Online - Volume 4, Issue 2 --- June, 1994 LaserScatter - Weak-Signal Communication Software Starlab - Plastic Spectrometer Mark III free-electron laser stolen - News Article WB9AJZ - Cheepo Laser "CW" Transceiver Burr-Brown - Application Notes, Design Seminars & Datasheets Burr-Brown - Transimpedance Amplifier with Differential Photodiode Current Sensing (pdf) Burr-Brown - 3-V Cmos Optical Preamplifier with DC Photocurrent Rejection (pdf) Electroda - Schematics & Service Manuals Lamina - High Output LED's Lumileds - LED Lighting Products San Diego Microwave Group - Technical Articles and Projects North Texas Microwave Society - Home Page BU Engineering - Optical Characterization and Nanophotonics Laboratory MLCD - Mars Laser Communication Demonstration Slashdot Fourum - An Interplanetary Laser Communications System JASON - High Power Lasers, JSR-02-224 (pdf) COIL - Chemical Oxygen Iodine Laser BSAC - Berkeley Sensor & Actuator Center Ronja - Installations Tim Toast - Xenon Strobe Based Optical Transmitter REAST - Radio and Electronics Association of Southern Tasmania Astro Tom - Telescopes and Dewing LED Supply - High Power LED's Oatley Electronics - Electronics Parts Kits Displays - Winn L. Rosch Hardware Bible, Electronic Edition Fresnel Tech - Fresnel Lenses (pdf) Sam's Laser FAQ - Home-Built Diode Pumped Solid State (DPSS) Laser Adaptive Optics - Space Communication Through Thin Clouds (pdf) Optical Seti - Optical Heterodyne and Homodyne Optical Seti - Diagram Showing Optical Interference Atmospheric Turbulence - Model for a Partly Coherent Gaussian Beam (pdf) Atmospheric Turbulence - Free Space Optical Communication (pdf) Atmospheric Turbulence - Markov Chain Model in Maximum Likelihood Sequence Detection (pdf) VK3AML - Optical Experiments G3PHO - Welcome to the World Above 1000 Mhz F1AVY - Optical Experiments VK3AML - Modulated Light DX Receiver Circuitry VK3AML - Photophones Revisited The PC Guide - Hard Drive Head Actuators F1AVY - 40Km NLOS Contact by Reflection from Vegitation VK3AML - Jeffree Cell Modulation WA4QAL - Quarts Crystal Grinding Resistor Calculator - for LED's Science Hobbyist - Amateur Science Resources VK3AML - Early Optical Communications VK3AML - modulated light tests in Australia, from 1968 to 1980 Lumileds - High Power LED's (pdf) Concave Mirrors - Spherical Aberration Laser Experiments - San Diego Microwave Group (doc) Laser Demo - Wide Band Laser Link (ppt) F1AVY - NLOS 40 km experiment The night sky in the World - DMSP Satellites International Dark-Sky Association - Light Pollution Issues 12V to 120V Inverter - Schematic Fizeau Wheel - Measuring the Speed of Light Operation On-Target - Mountain Top Signaling with Mirrors 3DLens - Large Fresnel Lens VK3AML - Optical Experiments Fresnel Lens - Random Destructive Acts via Focused Solar Radiation Frontends - A Wideband and Sensitive Rx (pdf) Luxeon III - Datasheet (pdf) Luxeon AB23 - Cooling LED's (pdf) Luxeon AB20-4 - Cooling LED's (pdf) VK3AML - Modulated Light DX Receiver Circuitry F1AVY - Laser Diode Transmitter K3PGP - Low Noise PIN Diode Laser Receiver F1AVY - Optical Experiments (English Version) Last Mile Internet - Optical Link with CO2 Lasers (pdf) Ultra-weak Signal Sensing - Amplified Coherent Detection (pdf) Ice Cloud Bulk Scattering Models - Visible to Shortwave Infrared Spectral Region Spectrum Lab - Yahoo Group RS-232 Laser Transciever - Electronics Australia Oct. 1997 Amateur Radio Laser Communications - Presentation by N9JIM Laser Communications - ARRL K3PGP - Laser Communication Info MLRS - McDonald Laser Ranging Station CERGA - Lunar Ranging (French) VE7DXG - Optical Experiments APOLLO - Apache Point Observatory Lunar Laser-ranging Operation Avalanche Photodiodes - Optics.org Avalanche Photodiodes - a User Guide (pdf) Single Photon Detection using Avalanche Photodiodes - a Student Thesis Geiger Mode Avalanche Photodiodes - Operation Modes (pdf) Advanced Photonix - High-Speed Optical Receivers South Island Component Centre - Electronics Parts Dick Smith - Electronics Microchip Technology - Microcontroller and Analog Semiconductors Prolight Power LED's - South Island Component Centre Telescope Bid to Spot Alien Beams - News Article VK3TDV - Optical Communications Atmospheric Refraction - Distance to the Horizon Space Station Photo - ISS Transits the Moon Trice Starlight Calculations - Intensity of Starlight K0SM Graph - Typical Dark Night Response Curve K3PGP - Low Frequency Modulation Laser Experiments Radiometry and Photometry in Astronomy - Units of Measurement Photoelectric Effect - Automatic Energy Calculation Program Solar Energy Spectrum - Integrated Energy, Wavelengths of Light Colors and Visual Response of Eye Conversions and Calculations - Electron Volt, Joule, Erg's, etc. Luxeon Star - High Power LED's Cyclops - Flashlights, spotlights OH2AUE - LASER and Optical Experiments Marconi - Image Progress Report - NASA JPL (pdf) F1AVY - 40Km NLOS QSO via Clouds (pdf) Smoke Detector - Wikipedia Radioactivity - Chart of Nuclides Americium-241 - Decay Radiation Neptunium-237 - Decay Radiation Coles Cameras - Used Filters Alltronics - Electronic Parts Emerging Technology Trends - Catching Photons Coming from the Moon F1AVY - 40KM Cloudbounce Laser QSO (pdf) F1AVY - Optical Experiments REAST - VK7 Optical Communication KA7OEI - Clint's Page(s) S1087_etc - Datasheet (pdf) DDS-60 Kit - 0-60 Mhz VFO with Variable Output G0MRF - OPT301 Laser Receiver OM2ZZ and OM3KII - First optical Amateur Contact in Slovakia ABL - High Power Airborne Laser Weapon System Microwave Records - Canadian Claimed Terrestrial Firsts and Distance Records for Bands Above 3 GHz Product Review - Sharp SM-SX100 1-Bit Digital Integrated Amplifier Computer Networking - HC Mingham-Smith BerliOS - WSJT Source Code USB 2.0 Specification - 7 Meg (zip) Scatterpoint - 2005 Issues IEEE Spectrum - The New Search for E.T. K3PGP - Low Noise PIN Diode Laser Receiver Part 2 AMSAT-BB - AMSAT-NA Bulletin Board Mailing List WB4APR - ANDE MAA Laser General Description Crab Pulsar Image - Leuschner Observatory S2386_series - Datasheet (pdf) WOLF - Ultra Low Level Laser Link Communications DL4YHF - Download Site for the WOLF GUI DB0TVH - Laser DX DB0TVH - laser TV Record Broken F1AVY - Modified K3PGP Circuit OM2ZZ - Optical Experiments in Slovakia Infra Red Lasers, IR Pulsed Lasers, Laser Plans - Information Unlimited K3PGP - Some Laser DX Landmarks Light and Polarization - A Primer Geodimeter Model 6A - EDM Instruments Optoelectronics - University of Glasgow Kerr Effect - Wikipedia Geodimeter Model 4B - EDM Instruments Kerr Cell - Electro-optical measurements Kerr Cell - Image Curta Type II - Handheld Mechanical Calculator EDAC - Error Detection and Correction Unit (pdf) The Faraday Effect - Optics & Photonics News, November 1999 Faraday Effect - Wikipedia Pockels Cell - Wikipedia QMR Effect - Wikipedia Magneto-Optic Effect - Wikipedia Zeeman Effect - Wikipedia Acousto-Optic Modulator - Wikipedia Polarization - Wikipedia KA7OEI - Optical (through-the-air) Communications F1AVY - Sound File of 70 Km QSO with Laser (wav) F1AVY - 400 Hz Beacon Anchor Optics - Experimental Grade Optics EOC - Femtowatt Photoreceivers F1AVY - Image of Laser Spot on a Cloud F1AVY - Proof of Civilization (pdf) Software Defined Radio - GNU FSF Project HPSDR - High Performance Software Defined Radio DSP-10 Project - Software-Defined 2-Meter Transceiver WOLF - Weak-Signal Operation on Low Frequency WOLF GUI - Software Download JFET's - Foolin' with FETs Mu Amp - Mod your Mu-Amp/Minibooster JFET Mu Amplifier - Schematic DJ1WF - Laser DX DJ1WF - Laser ATV 70Km DX M0AYF - QRSS Information Utah ATV - P-Ratings of Received Signal Quality DJ1WF - Building Guidances AN1434 - Phase Locked Fiber Optic System using FM Modulation (pdf) F1AVY - K3PGP Modified Receiver Schematic OPT301 - Datasheet (pdf) LMH6624 - Low Noise Wideband Operational Amplifier Datasheet 2SK170 - Low Noise Audio Amplifier JFET Datasheet (pdf) F1AVY - Pulsed Laser Receiver F1AVY - High Speed 50 Mhz APD Schematic VK7MO VK7TW - Multi-LED NLOS Experiments (pdf) VK7MO VK7TW - Multi-LED NLOS Experiments (pdf) VK7TW - Multi-LED NLOS Sound File (mp3) F1AVY - Radiometric Profiling of the Troposphere Multi-LED NLOS - Field Cloud Bounce Comparisons Multi-LED NLOS - Preamp Signal to Noise Comparisons Big Red - a Custom-Modified Geodimeter NGS - Survey Equipment Codes (pdf) Modern Navigation - Electronic Distance Measurement (pdf) Geodimeter - Image Model 8 Geodimeter - Image Model 8 Geodimeter - Image CQ-VHF - Spring 2007 Issue F1AVY - 400 Hz Beacon REAST - VK7 Optical Communication Anchor Optics - Experimental Grade Optics Free Space Optcal Communications Handbook - OTTAC-Handbook (doc) OM2ZZ - Experiment with Laser Diodes Harquahala Mountain, Arizona Peak Bagger MAX9483 and MAX9484 - Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers Maxim IC - DVD Formats and How to Drive Laser Diodes to Record and Rewrite DVDs Fun With Lasers - Make a DVD Burner into a High-Powered Laser Laser Safety - (ppt) Multibeam beacon laser assembly - NASA Tech Briefs, Oct 2001 Multi-LED NLOS - Extended Cloudbounce Test VK7TW - Fireworks Through an Optical Receiver Amateur Radio Wiki - The Online Encyclopedia for Hams Operation Red Line - 1963 Laser Free Space Communications Tom Becker - Laser Return Seen at Focal Point of Fresnel Tom Becker - Same but Focused on Fresnel Lunar Laser Ranging - Gravitational and Relativistic Physics Apollo - Lunar Laser Ranging Operation Apollo - Apparatus RCA Electro-Optical Handbook 1974 - (pdf) Photomultipliers - RCA Handbook (pdf) Mouser Electronics - Wavelength Selective Photodiode Pacific Silicon Sensor - Opto-Electronics Astronomy 105 - Resolving Power of a Telescope Resolving Power - Dawes Limit Dawes Limit - Wikipedia Angular Resolution - Wikipedia F1AVY - Proof of Civilization (pdf) K3PGP - Biasing & Modulating Laser Diodes OM1ARL and OM2ZZ - Optical Connection for 58km Distance FastLinc FLC820 - Long-range Wireless 2.4 GHz Ethernet Modem Infrared Analyzer Kit - Analyzes IR Remote Control Codes ABL Laser Weapons - CRS Report for Congress (pdf) Tom Becker - Focal Spot Imaged with a Loupe Fresnel Lenses - Anchor Optics Fresnel Tech - Fresnel Lenses (pdf) APD's - Edmund Optics VK7TW - 118km NON-LOS Contact (pdf) AM Laser Communications Kit - Oatley Electronics VK7TW - 165km NLOS Cloud Bounce Contact (pdf) Geostationary Satellites - Satcom Homepage Satellite Tracker - Telescope Software Comsoft - Telescope Control Software Consolidated Surplus - Test Equipment Manuals Lunar Albedo - High Albedo Lunar Features F1AVY - Spectran Capture of 120Hz Signal from Moon Lunar Eclipse Image - March 3rd 2007 1 Gram Robot - Surface Tension Robotic Insect Dynamic Explorer Adaptive Optics - Beam Stabilization FSOC - Atmospheric Mitigation Techniques (pdf) Eclipse Home Page - Eclipses During 2007 Eclipse Home Page - Total Lunar Eclipse of 2007 Aug 28 Worldwide Power Grid Frequency - Map Power Grid - Electricity Around the World Balloons in Space - Ordinary Guys Send Picture-Taking Balloon 22.27 Miles High Western Electric Model 51 - Telephone Handset The Optics of a Water Drop - Mie Scattering and the Debye Series Spark, Bang, Buzz and Other Good Stuff - Construction Projects LED Modulator - Schematic Photophone Transmitter - Diagram VK7TW - 224km NLOS Cloudbounce Tests Conducted (pdf) Spectrum Lab - Audio Spectrum Analyzer Software Mike Couture - Optical Experiments KA7OEI - Optical Experiments N9JIM - Eclipse Video Navy Free Space Photonics Communications Office - Optical Communications Data Photonics Handbook - Photonics.com Time-Frequency Deconvolution Filter - Reconstructing Noisey Signals Light Pollution - Map Laser Pointers - Wickedlasers.com BAMA - The Boat Anchor Manual Archive Green Lasers - Lasermate.com Astro Video - Image Stacking Software Model AO-8 - Adaptive Optics Systems SBIG CCD Cameras - Online Product Catalog Model AO-7 - STL-Adaptive Optics Accessory DynaLens - US Patent (pdf) Dynalens - Steadying Images by Bending Light Lucky Imaging - 'Lucky Camera' Takes Sharpest Ever Images of Stars Laser Beam Shaping - AO-Enhanced Free-Space Laser Communication Deformable Mirror - Data Sheet (pdf) Canigou Chain from Marseille - Atmospheric Refraction Effects VK7MO - 209 KM Test (pdf) Opt211 - West Florida Components Cuprous Oxide - Homemade Photocell (pdf) KA7OEI - Receivers for Low Bandwidth Optical (through-the-air) Communications RCA Electro-Optical Handbook 1974 - (pdf) F1AVY - Optical Experiments (new website) Oerlikon Space - Laser Data Link across 1.5 Million Kilometres Tim Toast - Moon Data Page 50 Ft Parabolic Mirror - Lunar Light Collector Operation Red Line - 1963 Laser Free Space Communications Eclipse EME - An EME Experiment with a Xenon Strobe Eclipse Photos - From Spaceweather.com Clementine - Albedo Map of the Moon Optical Feedback - An Optical-Feedback Transimpedance Receiver Optical Feedback - Reflective Opitical Feedback Element Optical Feedback - Photodetection and Measurement Optical Feedback - Low Noise Optical Receiver OM2ZZ - 119km Attempt to Vienna Tom Becker - Optical Receiver Tom Becker - Optical Receiver Tom Becker - Laser Return Seen at Focal Point of Fresnel KA7OEI - Vega at Focus of High Quality Fresnels Multiple Beam Uplink - 10 Gbps Shuttle to Ground Communications Link Experiments (pdf) Scintillation - Sizes of the Stars Scintillation - Effects of Distant Aperture Size on Signal Quality (pdf) KA7OEI - Coherent vs. Noncoherent Test Ham Radio 24 GHZ and Red Light Microwave Contacts - 2008 ARRL 10 GHZ & Up Contest (video) OPB780 - Color Sensing Devices Tube Sockets - Photomultiplier Tube Charles Pooley - Laser Data Link F1AVY - New APD Low Noise Receiver F1AVY - Noise Measurements for APD Receiver Silicon Avalanche Photodiodes - Edmund Optics Silicon Sensor GmbH - APD's and other Photodetectors KG4SGP - Video of Laser Transceiver Test Photon - Wikipedia Tim Toast - EME Experiments Lunar Albedo - High Albedo Lunar Features Coherent Backscatter - The Opposition Effect Lunar Phase Function - Moonshine Intensity as a Function of the Lunar Phase W1VLF - NON-LOS Optical Communications KA7OEI - Coherent vs. Noncoherent Test KA7OEI - Dollars vs. Decibels (pdf) Spectrometer - Wikipedia Bjomejag Ebuyer Store - Omega Optical Surplus Optical Filters Scintillation - Effects for Different Telescope Apertures (pdf) Narrow Beamwidth - Power LED (pdf) VK7MO and VK7JG - 209km Non-LOS Cloud Bounce Contact (pdf) F1AVY - New Charge Amplifier Photodetector ARRL VUAC - The Special VHF-UHF Advisory Committee W1VLF - Rescue Electronics Surplus Steradian - Wikipedia F1AVY - K3PGP Receiver used in Geophysics or Astronomy (pdf) OM2ZZ - First Optical Contact between Slovakia and Czech High Power Laser Pointers - Dragonlasers.com Luxeon 3 - LR W5SN Osram LED datasheet (pdf) Fldigi - Mulitple Digital Mode Software KA7OEI - Linear Current Modulators for High Power LED's IK1ZYW - MCW Over a 200m LOS Path F1AVY - Path Loss VS. Wavelength Graph F1AVY - Crab Pulsar Ultimate Optical DX? (pdf) Charles Pooley - Laser Data Link Barn Door Drive - Low Cost Equatorial Mount PTC Thermistors - Stabilizing Crystal Oscillators EME Experiment - GPS Synchronized Pulse Detection Experiment 75 Watt Laser Diode - Osram Data Sheet (pdf) High Speed Laser Diode Modulator - Sam Goldwasser Tom Becker - Time of flight via Optical Oscillator Avalanche Photodiode - Hamamatsu Type S2381 (pdf) Avalanche Photodiode - Perkin Elmer Avalanche Photodiode - Perkin Elmer Equatorial Table - A Low Profile Equatorial Mount F1AVY - Eyepiece Style Detector Circuit Square Wave - Animated Gif Crest Factor - Wikipedia IK1ZYW - Optics 1 : Electronics 0, Tale of a Partial Failure F1AVY - Charge Integration Photon Detector Retro-Reflectors - Gravity Deformation Measurements of NASA's 70 Meter Dishes (pdf) The Luxeon - New Light of Hope for Optical Comms Modulated Light DX - Long Distance Atmospheric Optical Comms Lumileds - Luxeon K2 Edmund Scientific - Optics and other Science Equipment Modulated Light Communications - Long Distance Atmospheric Optical Comms (new host) Video Modulator - LED AM Video Link DB0TVH - Optical Input ATV Repeater 3D Lens - Fresnel Lens Polarizer Avalanche Photodiode - Perkin Elmer McDonald Laser Ranging Station - Funding Terminated Albedo of Grasses - Reflectance vs. Wavelength (png) RC Notch Filter - AC Powerline Noise OM2ZZ - 81 km Optical Contact OM2ZZ - 94 km Optical Contact - New Slovak Record Optical Enclosure - Cheap Version Pulse Width Modulator - For High Power LEDS Spectral Curves - Red and Cyan Wratten Filters Spectral Curves - Dark Red and IR Wratten Filters Retro Reflection - Green Laser Reflected from Corner Cube N9JIM - Homemade Corner Cube N9JIM - Homemade Corner Cube F1AVY - New Charge Amplifier Photodetector Homegrown KDP Crystals - Frequency Doubling Nd:YAG Laser F1AVY - EME Experiment (pdf) Tim Toast - EME Experiment KA7OEI - Vernier and other Aiming Devices Heavens Above - Iridium Flare Predictions Charles Pooley - Laser Collimation F1AVY - Iridium Satellite Reflection of City Lights (pdf) OM2ZZ - 81 km Optical Contact OM1LD - Update and New Photos for 81km Contact VK7TW - 288km NLOS Optical Record Set VK7TW - Video of Mt Horror Optical DX Across Bass Strait Attempt LED used as APD - Optical Receiver Operation with High Internal Gain (pdf) Tom Becker - Optically Discharging a Reverse Biased LED LED used as APD - Using a Light Emitting Diode as a High Speed, Wavelength Selective Photodetector KA7OEI - Pulse Width Modulator OM1LD - Homemade Goniometer and other Equipment OM1LD - 94km Optical Contact - New Slovak Record Sam's Laser FAQ - HeNe Laser Testing, Adjustment, Repair K4IDC - SVHFS Conference Call for Papers KA7OEI - A 107 Mile 2-way Optical Contact KA7OEI - Microwave and Optical QSO for the ARRL 2008 '10 GHz and Up' Contest Balloon Experiment - NASA Seeks Student Payloads for High-Flying Research Balloon Division VUAC Representatives - Review of VHF Contest Rule 1.12 LED used as APD - Optical Receiver Operation with High Internal Gain (pdf) F1AVY - Circuit for Testing LED APD Gain FunScope - Cheap Laser Optics Compound Parabolic Concentrators - Edmund Optics Reducing Scintillation - Diffusing Optics 1 (pdf) F1AVY - 75 km Laser Direct Path Audio Sample (mp3) F1AVY - 10 km Laser Bounced from a Factory Chimney Audio Sample (wav) Reducing Scintillation - Diffusing Optics 2 (pdf) Reducing Scintillation - Diffusing Optics 3 (pdf) DJ1WF - Reducing Scintillation Effects on Laser ATV with Higher Frequency FM Subcarrier REAST - Simple Optical Transceiver Kits S8385 Photodiode - Hamamatsu Datasheet (pdf) Quantum Efficiency - Wiki F4EXB - How to Sort Out Near IR Only Sources (video) Spectroscope - Teachersource.com CFL Lamp - CFL Spectrum Lines KA7OEI - Using Laser Pointers for Free-Space Optical Communications DJ1WF - 31.4 km Crossband QSO at 405nm and 650nm F1AVY - Reduction of Laser Coherence Noise and Scintillation via NLOS (wav) F1AVY - Laser Aiming via Video Finder Scope Low Cost CCD Camera - 0.2 Lux Sensitivity F1AVY - Laser Aiming via Video Finder Scope (avi) F1AVY - Mt Blanc F1AVY - Good Optical Propagation F1AVY - Linear Laser Diode Modulator ScienceShot - Decades-Old Soviet Reflector Spotted on the Moon Laser Designators - Border Patrol PhysOrg - Quantum Teleportation Achieved Over 16 km Laser Safety - Maximum Permitted Exposure Standards ARRL - Changes to the General Rules for ARRL Contests Above 50 Mhz (pdf) FDA - Code of Federal Regulations Title 21 Radiation-Emitting Products - Important Information for Laser Pointer Manufacturers Laser Pointers - U.S. National, State and Local Laws Laser Classifications - Safety Requirments Laser Safety - Plan (pdf) Laser Safety - Introduction (pdf) Laser Safety Program - Laser Hazard Control Measures MPE - Power Density Vs. Exposure Time for Various Wavelengths EPM 606 - Fiber Coupled PIN Photodiode A250 - Applications Datasheet (pdf) Avalanche Photodiodes - Theory And Applications Color Filters - Theatrical Gels by Roscolux KA7OEI - Linear Current Modulators for High Power LEDs G8AGN - Optical Experiments OM2ZZ - Fresnel LED TX - Test Over 94km G8AGN - Optical Experiments CBT 40 - PhlatLight High Output LED (pdf) SBT 16 - PhlatLight High Output LED (pdf) F5ONY - Cloud Bounce Theory (avi) Ceilometer - Wiki USNRL - Description of the Facility (pdf) USNRL - Packet Testing in Free-Space Optical Communication Links Over Water (pdf) USNRL - Large Diameter, High Speed InGaAs Receivers for Free-Space Lasercom (pdf) Laser ATV - Long Distance Record 83.3 km F1CDT - 73 km QSO via Laser Pointer with 22cm Receiver Optics (mp3) KA7OEI - Pulse Width Modulator KA7OEI - A Highly Sensitive Optical Receiver Optimized for Speech Bandwidth KA7OEI - A Scintillation Compensator KA7OEI - Audio Clip of Scintillation Compensator (mp3) F1AVY F5PNP - Noise and Scintillation Removal via NLOS (wav) KA7OEI - Fresnel Lens Comparison 1 Bit DAC - How Stuff Works 1 Bit DAC - Wiki Class D Amplifier - Wiki K7RJ - Pulse Width Modulator K7RJ - Audio Sample of PWM (mp3) KA7OEI - Pulse Width Modulator Tom Becker - IR Illuminator and Fresnel Lens Tom Becker - Target Illuminated Tom Becker - Looking at Illuminator Beam KA7OEI - Using Laser Pointers Tom Becker - Simple NTSC Tracking Tom Becker - NTSC Tracking Demo Tom Becker - Tracking Camera 1 Tom Becker - Tracking Camera 2 Tom Becker - Tracking Camera Schematic and Software F1AVY - Aiming IR Laser via IR CCD Camera (avi) Frame Average - 87 Frames from CCD Camera Integrated via AstroVideo Software F1AVY - 170 km NLOS Attempts via Mount Blanc (pdf) G4NJH - New UK Optical Record Set Free Space LASER Communications - Email Reflector Archive Modulatedlight.org - Archives and other Resources Southgatearc.org - New Distance Record Set for Optical Communication KA7OEI - A 173-Mile 2-Way All-Electronic Optical Contact EA4EOZ - Lens Focusing on Photodiode KA7OEI - Alignment Target Bob Blick - LED Speed Test Max Carter - 75 Khz FM Subcarrier Laser Modulator KA7OEI - Short Distance Aiming Test Jig KA7OEI - Adjustable Optical Table KA7OEI - Audible S-Meter KA7OEI - Alignment Session over 172km Path (mp3) G8CYW - 80 Meter to Optical Transverter Schematic G8CYW - LED Transceiver Schematic AA1A - Homepage AA1A - 10 Mhz to 0-500 Khz Baseband Transverter AA1A - Photo of Transverter Circuit Board OH2AUE - 144 Mhz to Optical Transverter Osram - 0.5 Watt LED Forrest Mims - Wiki Oleg Losev - Wiki Nikolay Zheludev - One Hundred Years of the LED (pdf) W5SM HYJY-1-Z - LED Datasheet (pdf) Golden Dragon LED - Closeup Photo H J Round - Wiki AA1A - Transverter 10kc to 2 Mhz AA1A - Transverter TX Only AA1A - Transverter Packaged Micro PMT - Hamamatsu Photomultiplier Tube on a Chip TV Projection Lens - Goldmine Electronics KA7OEI - Comb Filter to Remove AC Hum from Mains-Powered Lighting in an Optical Receiver KA7OEI - Daylight Optical Test (video) KA7OEI - NLOS Mountain Bounce Test (video) KA7OEI - Photo of Beam on Mountain from Receiver Location KA7OEI - Photo of Beam on Mountain from Transmitter Location KA7OEI - Fresnel Lens Comparison F1AVY - NLOS Laser Communications (pdf) N6GKJ - Optical Experiments IR SMS Messenger - IR Based SMS Text Messenger Transceivers Free Electron Laser - Navy Breaks World Record KIRARI - Satellite Laser Link (video) KIRARI - Satellite Laser Link Beam of Life - Battery Powered Laser Cutter KA7OEI - Narrow Beam vs. Wide Beam Test Optical Repeater - San Diego Microwave Group KD0IF N6IZW (pdf) Differential Keying - Improved Automatic Threshold Correction for FSK Absorption Spectrum - An Atlas of Atmospheric Absorption Lines in the Infrared (pdf) Transmission vs Wavelength - IR Transmission Spectrum from 0.9 to 1.4 Microns Atmospheric Transmission Window - Google Books Optical Sensors for the Free Space Optical Link - (pdf) N9JIM - Summary of Transmittance Graphs N9JIM - Scattering vs Absorption F1AVY - Marseille to Canigou Mountian NLOS Path Tom Becker - Photographs of an Inferior-Mirage Sunset Smartertechnology.com - Atomic Clock on a Chip Spacetoday.org - Lunar Prospector over the Moon Wikipedia.org - Lunar Laser Ranging F1AVY - Ham Radio Optical EME : What Chance of Success? (pdf) W1VLF - 940nm LED Array Para Light Electronics - 1 watt IR LED (pdf) UKNanowaves - UKNanowaves Yahoo Group David Johnson - OTTAC Handbook (pdf) Dominec - USB Spectrometer (pdf) Surplus Shed - Surplus Optics KA7OEI - LED Linear Current Modulator for High Power LEDs KA7OEI - Current Modulator Schematic KA7OEI - A Comb Filter to Remove AC Hum SMD LED - OSRAM LRW51M-HXJY-1 LED, SMD RED Luminosity Function - Wiki P.C.D. Hobbs - Photodiode Front Ends - The Real Story (pdf) Electronic Design - What's All This Transimpedance Amplifier Stuff, Anyhow? (Part 1) G4JNT - Opt Rx Frequency Responce (pdf) G4JNT - Opt Rx Frequency Responce (doc) G4HJW - Light TX G4HJW - Light Beacon G4HJW - Current Source KA7OEI - Fresnel Lens Comparison Reast - Radio and Electronics Association of Southern Tasmania Cute PDF - Cute PDF Download Mike Couture - A Comparison of Two Amplifiers (pdf) G4JNT - File Encryption - Decryption using FileCryptJ G4JNT - Advances in free space optical technology (pdf) DESCANSO - Publication List Mike Couture - Lasers-n-Stuff Mike Couture - 1616, 931a, IR Image Tubes M0DTS - Video over light 3rd attempt FITSAT-1 (NIWAKA) - A Small Artificial Satellite Developed at the Fukuoka Institute of Technology FITSAT-1 (NIWAKA) - Amateur Radio CubeSat to use 5.8 GHz and Optical Comms G4JNT - JT4 OPT SC Beacon (zip) G4JNT - JT4 Code Generator (pdf) KA7OEI - Optical Receiver V3.10a Mike Couture - 25" Parabolic Mirror G4JNT - JT4 OPT SC Beacon (zip) Texas Instruments - NE5532AD - Op Amp, Dual Low Noise, SMD, 5532 Texas Instruments - NE5534AD - Op Amp, Low Noise, SMD, 5534, SOIC8 DX Records - OE1FFS and OK/OM3Kii OE1FFS and OK/OM3KII - 117km Optical Experiment (Slovak) OE1FFS and OK/OM3KI - 117km Optical Experiment (English) G4JNT - Voice Recordings with Noise Added #1 (wav) G4JNT - Recording #2 (wav) Earthship Centre - Sustainable Community Initiatives Rescue Electronics - NON-LOS Optical Communications KA7OAI - High Current Adjustable LED Modulator M0RJG M0AYF - Hybrid Cascode Optical Front End Goodrich Lighting - Night Vision and IR Equipment Mike Couture - Cloud Height Sensor Mike Couture - Laser Ceilometer (pdf) BPW34 - Photodiode Specs (pdf) G4JNT - LF DDS Beacon (zip) G4JNT - LF DDS Beacon Source (pdf) Lichtsprechgerät 80 - German Optical Transceiver GB3CAM Beacons - Red LED Beacon at Wyton BAA - British Astronomical Association Astrosurf - Christian Buil Home Page Astrosurf - A Low Cost Spectrograph NASA - Laser Communications Relay Demonstration Mission Flight NASA - LCRD Optical Communication System M0DTS - Video over LED (pdf) M0DTS - Video over LED Tim Toast - Low Voltage Transceiver (RX V2.0) Tim Toast - Reflex Mirror Optical Switch Michael Couture - Government Surplus Telescope Lasers - Sam's Repair FAQ Tom Becker - Laser Diode Driver Laser Diode Driver Current - Dependence of Optical Power vs Temperature OM2ZZ - 117km Laser Contact with One Milliwatt! (Slovak) OM2ZZ - 117km Laser Contact with One Milliwatt! VE2BP and VE2JWH - 121km Line-of-Sight Red Laser QSO with 5 Milliwatts (French) Tim Toast - Prism Tuner G4JNT - 144Mhz to Optical Transverter Tim Toast - Littrow Spectrometer Layout Tim Toast - Spectrometer CCD and Slit Head Keith Watt - View from South Shields location G4JNT - Noise Meter (zip) Television Experimenters - Mechanical Television DB0TVH - Laser ATV TX Schematic DB0TVH - Laser ATV RX Schematic LEDIL - Lenses for Golden Dragon LEDs Anti Reflection Coating - Wiki Dichroic Filter - Wiki Photophone - Wiki Heliograph - Wiki G3XBM - 481THz Progress Update VE3SMA - Laser Schematics (pdf) Michael Couture - Photomultiplier Tube Manual (pdf) VE3SMA - Optical Receiver Schematic GB3CAM - Beacons at Wyton Mouser Electronics - LED Lighting Modules Red 619-623nm 275lm @ 5.9A F1AVY - Photometric Occular M0ELS - Optical Transceiver G4HJW - 4 Inch Scope LEDs as APDs - Enhanced Quadratic Photocurrent in Commercial Light Emitting Diodes LEDs as APDs - Light Emitting Diodes (l.e.d.s) as Receivers with Avalanche Gain Fresnel Lenses - Edmund Optics VE3SMA - CW Laser Transceiver (pdf) KA7OEI - Optical Receiver ver 3.10a VE3SMA - Preamp Schematic PhlatLight - Thermal Charactoristics (pdf) KA7OEI - Linear Current Modulators for High Power LEDs @ - up to date - 15 Jan 2012 |