Demonstration of an optical isolator by use of a nonreciprocal phase shift

Hideki Yokoi; Tetsuya Mizumoto; Tomoaki Takano; Nobuhiro Shinjo

doi:10.1364/AO.38.007409

Demonstration of an optical isolator by use of a nonreciprocal phase shift

Hideki Yokoi, Tetsuya Mizumoto, Tomoaki Takano, Nobuhiro Shinjo

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

42 Citations (Scopus)

Abstract

The experimental study of an optical isolator by use of a nonreciprocal phase shift is demonstrated. The isolator has an optical interferometer composed of tapered couplers, nonreciprocal phase shifters, and a reciprocal phase shifter. The isolator, designed for a 1.55-mm wavelength, was fabricated to investigate the characteristics of each component. The branching and coupling characteristics of the tapered coupler were measured. The nonreciprocal and reciprocal phase shifts were also evaluated. By applying an external magnetic field to the interferometer, we confirmed the nonreciprocal phase shift in the interferometric isolator.

Original language	English
Pages (from-to)	7409-7413
Number of pages	5
Journal	Applied Optics
Volume	38
Issue number	36
DOIs	https://doi.org/10.1364/AO.38.007409
Publication status	Published - 1999 Dec 20
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.38.007409

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AU - Takano, Tomoaki

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N2 - The experimental study of an optical isolator by use of a nonreciprocal phase shift is demonstrated. The isolator has an optical interferometer composed of tapered couplers, nonreciprocal phase shifters, and a reciprocal phase shifter. The isolator, designed for a 1.55-mm wavelength, was fabricated to investigate the characteristics of each component. The branching and coupling characteristics of the tapered coupler were measured. The nonreciprocal and reciprocal phase shifts were also evaluated. By applying an external magnetic field to the interferometer, we confirmed the nonreciprocal phase shift in the interferometric isolator.

AB - The experimental study of an optical isolator by use of a nonreciprocal phase shift is demonstrated. The isolator has an optical interferometer composed of tapered couplers, nonreciprocal phase shifters, and a reciprocal phase shifter. The isolator, designed for a 1.55-mm wavelength, was fabricated to investigate the characteristics of each component. The branching and coupling characteristics of the tapered coupler were measured. The nonreciprocal and reciprocal phase shifts were also evaluated. By applying an external magnetic field to the interferometer, we confirmed the nonreciprocal phase shift in the interferometric isolator.

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Demonstration of an optical isolator by use of a nonreciprocal phase shift

Abstract

ASJC Scopus subject areas

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