Wide spectral width of frequency-shifted-feedback semiconductor laser

Shunichi Sato, Masaki Kawasaki

Research output: Contribution to journalConference articlepeer-review


We report spectral feature of a frequency-shifted-feedback semiconductor laser with the anti-reflection coating of low reflectivity on the output facet. Although many peaks due to the chip mode were observed, a few peaks are connected each other without break showing a continuous spectral range wider than 100GHz. A homodyne detection of the laser output showed higher order beat signals supporting the continuity of the laser spectrum over wide spectral range.

Original languageEnglish
Article number09
Pages (from-to)90-97
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004
EventROMOPTO 2003: Seventh Conference on Optics - Constanta, Romania
Duration: 2003 Sept 82003 Sept 11


  • Anti-reflection coating
  • Chip mode
  • Frequency-shifted-feedback
  • Homodyne detection
  • Semiconductor laser


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