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Proceedings Paper

Grating Coupler/Demultiplexer For Fibre-Optic Local-Area Networks Using Wavelength-Division Multiplexing
Author(s): Torsten von Lingelsheim
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Paper Abstract

The use of wavelength-division multiplexing in future fibre-optic local-area networks allows sophisticated system performance and modular system flexibility. For this purpose a wavelength selective branching coupler is required, which branches from the trunk fibre carrying multiwavelength signals to the special wavelength channels needed at the actual node. For bus or loop structured networks we developed such branching couplers, which consist of a special grating as dispersive element and micro-optical graded index lenses (GRIN rods) for light collimation and refocussing. Two different branching couplers have been designed and built. The first is a simple WDM demultiplexer in Littrow configuration with 830 nm and 1300 nm channel separation, and the second a more sophisticated arrangement, where input and output arms to the trunk as well as both first order fibre arrays have each their own graded index lens mount and adjustment facilities.

Paper Details

Date Published: 6 July 1986
PDF: 8 pages
Proc. SPIE 0585, Fiber Optic Broadband Networks, (6 July 1986); doi: 10.1117/12.966535
Show Author Affiliations
Torsten von Lingelsheim, Institut fur Hochfrequenztechnik der TU Braunschweig (Germany)

Published in SPIE Proceedings Vol. 0585:
Fiber Optic Broadband Networks
Robert Boirat, Editor(s)

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