Enhancement of Magneto Optic Effect in Optical Isolator with GaInAsP Guiding Layer by Selective Oxidation of AlInAs

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Published 10 February 2004 • Copyright (c) 2004 The Japan Society of Applied Physics
, , Citation Yuya Shoji et al 2004 Jpn. J. Appl. Phys. 43 590 DOI 10.1143/JJAP.43.590

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1 Department of Electrical and Electronic Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

2 Optoelectronic Industry and Technology Development Association, 1-20-10 Sekiguchi, Bunkyo-ku, Tokyo 112-0014, Japan

Dates

  1. Received 30 June 2003
  2. Accepted 24 October 2003
  3. Published

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Abstract

A selectively oxidized AlInAs layer with low refractive index can enhance the magneto optic effect and improve the characteristics of optical nonreciprocal devices. We successfully fabricated an optical waveguide with an AlInAs oxide lower cladding layer. The refractive index of the AlInAs oxide was determined to be 2.45 at λ=1.55 µm. The optical nonreciprocal phase shift of this waveguide was more than twelvefold than that of the magneto optic waveguide with an InP cladding layer.

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10.1143/JJAP.43.590