Numerical analysis for optical frequency comb generated by semiconductor Mach-Zehnder modulator

Nobuhide Yokota, Takahiro Miki, Koichiro Abe, Hiroshi Yasaka, Eiichi Yamada

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

1 Citation (Scopus)

Abstract

We investigated an optical frequency comb generated by an InP-based semiconductor Mach-Zehnder (MZ) modulator by using a numerical model that takes into account the nonlinear change of a refractive index and an optical absorption induced by an applied voltage in the modulator. Such nonlinearities are negligible for conventional LiNbO3-based MZ modulators but not negligible for semiconductor MZ modulators. The numerical model quantitatively reproduced our experimental data reported previously. We found that the nonlinearities play an important role to obtain the flat 9-channel optical frequency comb block with an intensity deviation of less than 1 dB, when a moderate RF drive voltage of < 5 V was used. This result was sustained regardless of an RF drive voltage ratio between two arms in the MZ modulator.

Original languageEnglish
Title of host publication2015 Opto-Electronics and Communications Conference, OECC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467379441
DOIs
Publication statusPublished - 2015 Nov 30
EventOpto-Electronics and Communications Conference, OECC 2015 - Shanghai, China
Duration: 2015 Jun 282015 Jul 2

Publication series

Name2015 Opto-Electronics and Communications Conference, OECC 2015

Other

OtherOpto-Electronics and Communications Conference, OECC 2015
CountryChina
CityShanghai
Period15/6/2815/7/2

Keywords

  • Mach-Zehnder modulator
  • optical frequency comb
  • semiconductor optical modulator
  • sideband generation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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