Optical frequency sweeper using an optical ring circuit with a tunable injection-locking filter

M. Ishikawa, H. Yasaka, Y. Yoshikuni, F. Kano

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We report an optical-frequency sweeper based on an optical ring circuit containing an optical-frequency shifter and a delay-line fiber. High signal-to-noise ratio (30 dB) is achieved by introducing a tunable injection-locking filter (TILF). The TILF utilizes a tunable laser (distributed Bragg reflector (DBR) laser), which is injection locked to an input signal light. We have achieved a total sweep frequency of 144 GHz by switching the longitudinal modes of the DBR laser.

Original languageEnglish
Pages (from-to)1668-1670
Number of pages3
JournalIEEE Photonics Technology Letters
Volume11
Issue number12
DOIs
Publication statusPublished - 1999 Dec 1
Externally publishedYes

ASJC Scopus subject areas

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

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