Measurement of small chirp-parameter for Mach-Zehnder-type optical modulator

Akira Enokihara, Tetsuya Kawanishi, Hiroshi Murata, Yasuyuki Okamura, Masayuki Izutsu

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A new measurement method of chirp-parameters is proposed for electro-optic (EO) intensity modulators with the Mach-Zehnder (MZ) waveguide interferometer. This method is suitably applied for the measurement of the small chirp with operation at a specific RF-frequency. To determine the chirp-parameter, optical spectrum components of the modulated light are observed with varying the relative optical phase difference between the two arms of the MZ waveguide interferometer. The chirp-parameter of 0.17, which is a value small enough for EO intensity modulation, was successfully measured by the experiment.

Original languageEnglish
Pages (from-to)4229-4232
Number of pages4
JournalOptics Communications
Volume282
Issue number21
DOIs
Publication statusPublished - 2009 Nov 1
Externally publishedYes

Fingerprint

Light modulators
Electrooptical effects
chirp
Interferometers
Mach number
modulators
Waveguides
Modulators
electro-optics
interferometers
Modulation
waveguides
optical spectrum
Experiments
modulation

Keywords

  • Chirp-parameter
  • Mach-Zehnder interferometer
  • Optical modulator
  • Optical spectrum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Measurement of small chirp-parameter for Mach-Zehnder-type optical modulator. / Enokihara, Akira; Kawanishi, Tetsuya; Murata, Hiroshi; Okamura, Yasuyuki; Izutsu, Masayuki.

In: Optics Communications, Vol. 282, No. 21, 01.11.2009, p. 4229-4232.

Research output: Contribution to journalArticle

Enokihara, Akira ; Kawanishi, Tetsuya ; Murata, Hiroshi ; Okamura, Yasuyuki ; Izutsu, Masayuki. / Measurement of small chirp-parameter for Mach-Zehnder-type optical modulator. In: Optics Communications. 2009 ; Vol. 282, No. 21. pp. 4229-4232.
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