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Optical Engineering

Analysis of symmetric directional couplers and asymmetric Mach-Zehnder interferometers as 1.30- and 1.55-μm dual-wavelength demultiplexers/multiplexers
Author(s): Ari Tervonen; Seppo Honkanen; S. Iraj Najafi
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Paper Abstract

Two difterent concepts for 1.30- and 1 .55-μm dual-wavelength demultiplexers/multiplexers, based on glass waveguides, the symmetric directional coupler, and the asymmetric Mach-Zehnder interlerometer, are analyzed and compared. Attention is given mainly to the sensitivity to fabrication parameter changes. The rather strict fabrication conditions needed to obtain satisfactory performance from directional couplers are examined. With Mach-Zehnder interferometers, the sensitivity is considerably lower, which indicates that the fabrication of these devices is uncomplicated.

Paper Details

Date Published: 1 September 1993
PDF: 9 pages
Opt. Eng. 32(9) doi: 10.1117/12.145072
Published in: Optical Engineering Volume 32, Issue 9
Show Author Affiliations
Ari Tervonen, Ecole Polytechnique (France)
Seppo Honkanen, Ecole Polytechnique (France)
S. Iraj Najafi, Ecole Polytechnique (France)


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