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Proceedings Paper

Design of a continuously tunable wavelength division multiplexing scheme for an optical ISL
Author(s): Martin D. Roberts
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Paper Abstract

A tunable Wavelength Division Multiplexing [WDM] scheme, suitable for Optical InterSatellite Link [OISLJ 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 < O.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.

Paper Details

Date Published: 1 July 1990
PDF: 8 pages
Proc. SPIE 1218, Free-Space Laser Communication Technologies II, (1 July 1990); doi: 10.1117/12.18192
Show Author Affiliations
Martin D. Roberts, Pilkington Optronics (United Kingdom)

Published in SPIE Proceedings Vol. 1218:
Free-Space Laser Communication Technologies II
David L. Begley; Bernard D. Seery, Editor(s)

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