Fast polarization control for optical frequency combs

Taiki Kageyama, Taro Hasegawa

Research output: Contribution to journalArticlepeer-review

Abstract

Polarization of an optical frequency comb is electrically controlled using a waveguide electro-optic phase modulator (WG-EOM). Owing to the low operation voltage and wide electric bandwidth of the WG-EOM, fast polarization control is possible. It is found that birefringence of the WG-EOM and polarization-maintaining optical fibers causes polarization-dependent pulse separation, which makes polarization control of the optical frequency comb impossible. Therefore, compensation of the birefringence is required for polarization control. In the experiment, a delay line in free space is used for birefringence compensation, and pulse-to-pulse polarization control of an optical frequency comb (with a repetition rate of 100 MHz) is demonstrated.

Original languageEnglish
Pages (from-to)38477-38487
Number of pages11
JournalOptics Express
Volume29
Issue number23
DOIs
Publication statusPublished - 2021 Nov 8

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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