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

Yohei Sobu | Zendy; Yuya Shoji | Zendy; Kazumasa Sakurai | Zendy; Tetsuya Mizumoto | Zendy

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

Author(s) -

Yohei Sobu,

Yuya Shoji,

Kazumasa Sakurai,

Tetsuya Mizumoto

Publication year - 2013

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.015373

Subject(s) - optical isolator , materials science , optics , cladding (metalworking) , isolator , waveguide , interferometry , optoelectronics , optical fiber , physics , electronic engineering , metallurgy , engineering

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.

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