Side-mode suppression of optical add and drop multiplexer utilizing vertically coupled InGaAsP waveguides

M. Horita, S. Tanaka, Yuichi Matsushima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A sidemode suppression of a vertically and contra-directionally coupled semiconductor waveguide type optical add and drop multiplexer is investigated theoretically and experimentally, by introducing a window function to a grating width. Grating configuration dependence of device characteristics was numerically calculated for a linearly changing grating width. It was found that the sidemode suppression ratio (SMSR) could be improved to be more than 30 dB even by the simple grating structure. SMSR of 18 dB was obtained in a fabricated device, for which the grating was trimmed by a laser beam direct drawing method.

Original languageEnglish
Title of host publicationConference Proceedings - International Conference on Indium Phosphide and Related Materials
PublisherIEEE
Pages22-25
Number of pages4
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 International Conference on Indium Phosphide and Related Materials - Tsukuba, Jpn
Duration: 1998 May 111998 May 15

Other

OtherProceedings of the 1998 International Conference on Indium Phosphide and Related Materials
CityTsukuba, Jpn
Period98/5/1198/5/15

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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