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Proceedings Paper

Highly reliable 32-channel wavelength-division demultiplexer (patent pending)
Author(s): James W. Horwitz; Xuegong Deng; Al Morgan; Jie Qiao; Victor Ivan Villavicencio; Feng Zhao; Jizuo Zou; Ray T. Chen
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Paper Abstract

A 32-channel wavelength-division demultiplexer has been designed and tested. Intended for commercial use, the instrument is designed to be rugged, stable, and insensitive to temperature variations. Operating in the 1.54-1.57-micrometers spectral range, the unit uses single-mode fiber input and multi-mode fiber output. The optics consists of a Littrow plane-grating spectrograph that uses the same lens for collimation and for focusing. In order to reduce the size of the device, the gratin is used at a large diffraction angle. A coarse ruling is used in a high diffraction order, which results in a device that has a low polarization-dependent loss. The mean insertion loss for all channels was 3.1 dB, and the standard deviation of the insertion loss was 0.23 dB. The mean channel bandwidth was 0.26 dB.

Paper Details

Date Published: 21 April 2000
PDF: 8 pages
Proc. SPIE 3949, WDM and Photonic Switching Devices for Network Applications, (21 April 2000); doi: 10.1117/12.382885
Show Author Affiliations
James W. Horwitz, Radiant Research, Inc. (United States)
Xuegong Deng, Univ. of Texas/Austin (United States)
Al Morgan, Al Morgan and Associates (United States)
Jie Qiao, Univ. of Texas/Austin (United States)
Victor Ivan Villavicencio, Radiant Research, Inc. (United States)
Feng Zhao, Univ. of Texas/Austin (United States)
Jizuo Zou, Univ. of Texas/Austin (United States)
Ray T. Chen, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 3949:
WDM and Photonic Switching Devices for Network Applications
Ray T. Chen; George F. Lipscomb, Editor(s)

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