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Jpn. J. Appl. Phys. 43 (2004) pp. L1561-L1563  |Previous Article| |Next Article|  |Table of Contents|
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Express Letter

First Demonstration of TE Mode Nonreciprocal Propagation in an InGaAsP/InP Active Waveguide for an Integratable Optical Isolator

Hiromasa Shimizu and Yoshiaki Nakano

Research Center for Advanced Science and Technology, The University of Tokyo, JST CREST, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan

(Received October 5, 2004; accepted October 15, 2004; published November 12, 2004)

We have proposed and fabricated a TE mode semiconductor-waveguide-type optical isolator based on the nonreciprocal loss shift at a wavelength λ= 1560 nm. Furthermore, we demonstrate, for the first time, a TE mode nonreciprocal loss shift of 9.3 dB/mm under a magnetic field of +/-1 kG in the facricated InGaAsP active waveguide with Fe on an InP substrate. This result opens a way to the monolithic integration of semiconductor waveguide-type optical isolators with edge emitting semiconductor lasers.

URL: http://jjap.jsap.jp/link?JJAP/43/L1561/
DOI: 10.1143/JJAP.43.L1561

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