Design of a Continuously Tunable Wavelength Division Multiplexing Scheme for an Optical ISL

Martin D. Roberts

doi:10.1117/12.969708

1 April 1990 Design of a Continuously Tunable Wavelength Division Multiplexing Scheme for an Optical ISL

Martin D. Roberts

Proceedings Volume 1191, Optical Systems for Space and Defence; (1990) https://doi.org/10.1117/12.969708
Event: SIRA/Optical Systems for Space and Defence, 1989, London, United Kingdom

Abstract

A tunable Wavelength Division Multiplexing [WDM] scheme, suitable for Optical Inter-Satellite Link [OISL] communications, has been designed. The scheme can combine [and separate] four or more beams from laser diode devices in the 800-900nm wavebands and incorporates a number of tunable narrow-band holographic reflection filters. By choosing the correct point source construction geometry the 'tuning' along one direction of the filter can be made to vary approximately linearly with position on the substrate. The advantages of such filters with regard to achieving the tight tuning tolerances [typically <± 0.5nm] required for space communications is discussed. In the DEMUX arrangement a 'double bounce' method is employed to minimise the effect of holographic sidebands on the received noise levels. The overall transmission for the scheme has been predicted for each channel.

Citation Download Citation

Martin D. Roberts "Design of a Continuously Tunable Wavelength Division Multiplexing Scheme for an Optical ISL", Proc. SPIE 1191, Optical Systems for Space and Defence, (1 April 1990); https://doi.org/10.1117/12.969708

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