Design Of A Wavelength Division Multiplexing/Demultiplexing System For Optical Intersatellite Links

B. Laurent; JL. Perbos

doi:10.1117/12.940021

3 June 1987 Design Of A Wavelength Division Multiplexing/Demultiplexing System For Optical Intersatellite Links

B. Laurent, JL. Perbos

Proceedings Volume 0756, Optical Technologies for Space Communication Systems; (1987) https://doi.org/10.1117/12.940021
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Optical communications is an alternative to the microwave solution for high data rate interorbit (IOL) or intersatellite link (ISL), typically 500 Mbit/s. The optical system, using laser diode technology, only requires small size antennae, provided that multiplexing or power combining techniques are used. This paper presents a Wavelength Division Multiplexing/Demultiplexing System involving orthogonal polarizations for adjacent channels. This solution is preferred to the power combining technique to satisfy some specific system and interfaces constraints and to avoid a very accurate control of laser wavelength. The proposed design complies with system constraints like redundancy, minimum back-light on the laser junction, interchannel interferences, depolarization in the optical system, compacity, ... Its simplicity -the required components are only λ/4 plates, filters under normal incidence and polarizer beamsplitters- is attractive and the concept, descri-bed here for 4 wavelengths in the 0.817-0.84311μ range, can be applied to an unlimited number of wavelengths. The computed performances in transmission and isolation taking into account all parasitic reflections are given. A breadboard model is currently under development at MATRA to be tested in 1987. Preliminary results of sub-assemblies tests are presented.

Citation Download Citation

B. Laurent and JL. Perbos "Design Of A Wavelength Division Multiplexing/Demultiplexing System For Optical Intersatellite Links", Proc. SPIE 0756, Optical Technologies for Space Communication Systems, (3 June 1987); https://doi.org/10.1117/12.940021

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