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Proceedings Paper

Channel waveguide Mach-Zehnder interferometer for wavelength splitting and combining
Author(s): Ari Tervonen; Pekka Poyhonen; Seppo Honkanen; Markku Toivo Tahkokorpi
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Paper Abstract

A guided-wave Mach-Zehnder interferometer structure, based on the use of a four-port hybrid optical coupler consisting of symmetric and nonsymmetric y-junctions, is proposed for wavelength division multiplexing application. This structure provides low sensitivity to fabrication parameters and optical polarization and can also be applied to wide wavelength spacing operations. Interferometers for wavelength splitting in the 1.3 and 1.55 micrometers windows were designed and fabricated into a glass substrate with a dry silver ion exchange process. The measured crosstalk was -30 dB with nonpolarized light.

Paper Details

Date Published: 1 August 1991
PDF: 5 pages
Proc. SPIE 1513, Glasses for Optoelectronics II, (1 August 1991); doi: 10.1117/12.46053
Show Author Affiliations
Ari Tervonen, Nokia Research Ctr. (Finland)
Pekka Poyhonen, Nokia Research Ctr. (Finland)
Seppo Honkanen, Nokia Research Ctr. (Finland)
Markku Toivo Tahkokorpi, Nokia Research Ctr. (Finland)


Published in SPIE Proceedings Vol. 1513:
Glasses for Optoelectronics II
Giancarlo C. Righini, Editor(s)

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