Nondestructive Evaluation of Coupling Constants in Singlemode Optical Thannel Waveguides

Makoto Tsubokawa; Mitsuhiro Tateda; Nori Shibata; Masao Kawachi

doi:10.1109/50.4118

Nondestructive Evaluation of Coupling Constants in Singlemode Optical Thannel Waveguides

Makoto Tsubokawa, Mitsuhiro Tateda, Nori Shibata, Masao Kawachi

Research output: Contribution to journal › Article › peer-review

Abstract

A nondestructive method is proposed for evaluating power coupling coefficients at directional couplers contained in an optical integrated circuit. This technique, which is based on optical heterodyne interferometry, makes it possible to obtain individual coupler element information without removing the element from the optical circuit. General N-channel waveguide coupling characteristics are analyzed, and they are experimentally evaluated for two-and four-channel waveguides that have been practically designed as frequency multi/demultiplexers operating in the 1.55-μm-wavelength region.

Original language	English
Pages (from-to)	1209-1216
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	6
Issue number	7
DOIs	https://doi.org/10.1109/50.4118
Publication status	Published - 1988 Jul
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/50.4118

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abstract = "A nondestructive method is proposed for evaluating power coupling coefficients at directional couplers contained in an optical integrated circuit. This technique, which is based on optical heterodyne interferometry, makes it possible to obtain individual coupler element information without removing the element from the optical circuit. General N-channel waveguide coupling characteristics are analyzed, and they are experimentally evaluated for two-and four-channel waveguides that have been practically designed as frequency multi/demultiplexers operating in the 1.55-μm-wavelength region.",

author = "Makoto Tsubokawa and Mitsuhiro Tateda and Nori Shibata and Masao Kawachi",

year = "1988",

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AB - A nondestructive method is proposed for evaluating power coupling coefficients at directional couplers contained in an optical integrated circuit. This technique, which is based on optical heterodyne interferometry, makes it possible to obtain individual coupler element information without removing the element from the optical circuit. General N-channel waveguide coupling characteristics are analyzed, and they are experimentally evaluated for two-and four-channel waveguides that have been practically designed as frequency multi/demultiplexers operating in the 1.55-μm-wavelength region.

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Nondestructive Evaluation of Coupling Constants in Singlemode Optical Thannel Waveguides

Abstract

ASJC Scopus subject areas

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