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Satellite Laser CommunicationsCourse # P221NEW!February 24-26, 2015Columbia, Maryland$1790 (8:30am - 4:30pm)"Register 3 or More & Receive $100 00 eachOff The Course Tuition."SummaryThis three-day course will provideThis course will providean introduction and overview of laser communicationprinciples and technologies for unguided, free-space beampropagation. Special emphasis is placed on highlighting thedifferences, as well as similarities to RF communications andother laser systems, and design issues and options relevantto future laser communication terminals.InstructorHamid Hemmati, Ph.D. , has joined Facebook Inc. as Director ofEngineering for Telecom Infrastructure. Until May2014 he was with the Jet Propulsion Laboratory(JPL), California Institute of Technology where asPrincipal member of staff and the Supervisor of theOptical Communications Group. Prior to joiningJPL in 1986, he was a researcher at NASA'sGoddard Space Flight Center and at NIST(Boulder, CO). Dr. Hemmati has published over200 journal and conference papers, nine patents granted and twopending. He is the editor and author of two books: "Deep SpaceOptical Communications" and "Near-Earth Laser Communications"and author of five other book chapters. In 2011 he received NASA'sExceptional Service Medal. He has also received 3 NASA Space ActBoard Awards, and 36 NASA certificates of appreciation. He is aFellow member of OSA (Optical Society of America) and the SPIE(Society of Optical Engineers). Dr. Hemmati's current researchinterests are in developing laser communications technologies andlow complexity, compact flight electro-optical systems for both interplanetaryand satellite communications and science. Researchactivities include: managing the development of a flight lasercomterminal for planetary applications, called DOT (Deep-space OpticalTerminals), electro-optical systems engineering, solid-state lasers(particularly pulsed fiber lasers), flight qualification of optical andelectro-optical systems and components; low-cost multi-meterdiameter optical ground receiver telescopes; active and adaptiveoptics; and laser beam acquisition, tracking and pointing.What You Will Learn• This course will provide you the knowledge and abilityto perform basic satellite laser communication analysis,identify tradeoffs, interact meaningfully with colleagues,evaluate systems, and understand the literature.• How is a laser-communication system superior toconventional technology?• How link performance is analyzed.• What are the options for acquisition, tracking and beampointing?• What are the options for laser transmitters, receiversand optical systems.• What are the atmospheric effects on the beam and howto counter them.• What are the typical characteristics of lasercommunicationsystem hardware?• How to calculate mass, power and cost of flightsystems.Course Outline1. Introduction. Brief historical background,RF/Optical comparison; basic Block diagrams; andapplications overview.2. Link Analysis. Parameters influencing the link;frequency dependence of noise; link performancecomparison to RF; and beam profiles.3. Laser Transmitter. Laser sources; semiconductorlasers; fiber amplifiers; amplitude modulation; phasemodulation; noise figure; nonlinear effects; and coherenttransmitters.4. Modulation & Error Correction Encoding. PPM;OOK and binary codes; and forward error correction.5. Acquisition, Tracking and Pointing.Requirements; acquisition scenarios; acquisition; pointaheadangles, pointing error budget; host platform vibrationenvironment; inertial stabilization: trackers; passive/activeisolation; gimbaled transceiver; and fast steering mirrors.6. Opto-Mechanical Assembly. Transmit telescope;receive telescope; shared transmit/receive telescope;thermo-Optical-Mechanical stability.7. Atmospheric Effects. Attenuation, beam wander;turbulence/scintillation; signal fades; beam spread; turbid;and mitigation techniques.8. Detectors and Detections. Discussion of availablephoto-detectors noise figure; amplification; backgroundradiation/ filtering; and mitigation techniques. Poissonphoton counting; channel capacity; modulation schemes;detection statistics; and SNR / Bit error probability.Advantages / complexities of coherent detection; opticalmixing; SNR, heterodyne and homodyne; laser linewidth.9. Crosslinks and Networking. LEO-GEO & GEO-GEO; orbital clusters; and future/advanced.10. Flight Qualification. Radiation environment;environmental testing; and test procedure.11. Eye Safety. Regulations; classifications; wavelengthdependence, and CDRH notices.12. Cost Estimation. Methodology, models; andexamples.13. Terrestrial Optical Comm. Communicationssystems developed for terrestrial links.Who should attendEngineers, scientists, managers, or professionals whodesire greater technical depth, or RF communicationengineers who need to assess this competing technology.56 – Vol. 119 Register online at www.ATIcourses.com or call ATI at 888.501.2100 or 410.956.8805