Group velocity dispersion measurement method using sinusoidally phase-modulated continuous wave light based on cyclic nature of optical waveform change by group velocity dispersion

Takashi Yamamoto, Takayoshi Mori, Taiji Sakamoto, Kenji Kurokawa, Shigeru Tomita, Makoto Tsubokawa

Research output: Contribution to journalArticle

1 Citation (Scopus)


We show that any optical pulse train recovers its original waveform after passing through a group velocity dispersion (GVD) device when the total GVD value of the device is equal to an integral multiple of 1=(2πf rep2), where f rep is the repetition rate of the optical pulse train. In addition, we detail our proposed GVD measurement method, or optical phase-modulation (PM) method, which utilizes a sinusoidally PM continuous wave (CW) light as a probe light. The total GVD B2 of a device under test (DUT) is derived by using a very simple equation, |B 2| = 1=(2pf null2), where f null is the smallest modulation frequency at which the sinusoidallyPM light becomesCWlight again after passing through the DUT.

Original languageEnglish
Pages (from-to)5148-5156
Number of pages9
JournalApplied Optics
Issue number27
Publication statusPublished - 2010 Sep 20


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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