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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 13 — Jul. 1, 2013
  • pp: 15373–15381

GaInAsP/InP MZI waveguide optical isolator integrated with spot size converter

Yohei Sobu, Yuya Shoji, Kazumasa Sakurai, and Tetsuya Mizumoto  »View Author Affiliations

Optics Express, Vol. 21, Issue 13, pp. 15373-15381 (2013)

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We fabricated a waveguide optical isolator with a GaInAsP guiding layer integrated with spot size converters (SSCs) for efficient coupling to optical fibers. The isolator is constructed with a Mach–Zehnder interferometer (MZI), which is composed of multi-mode interference (MMI) couplers, as well as nonreciprocal and reciprocal phase shifters. The nonreciprocal phase shifter is constructed with a magneto-optical cladding layer directly bonded to a semiconductor guiding layer. The performance of the GaInAsP waveguide optical isolator was demonstrated with a maximum optical isolation of 28.3 dB at a wavelength of 1558 nm for the TM mode.

© 2013 OSA

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.3120) Optical devices : Integrated optics devices
(230.3240) Optical devices : Isolators

ToC Category:
Integrated Optics

Original Manuscript: March 26, 2013
Revised Manuscript: May 5, 2013
Manuscript Accepted: May 14, 2013
Published: June 20, 2013

Yohei Sobu, Yuya Shoji, Kazumasa Sakurai, and Tetsuya Mizumoto, "GaInAsP/InP MZI waveguide optical isolator integrated with spot size converter," Opt. Express 21, 15373-15381 (2013)

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