Low beat-noise polarized tunable fiber ring laser

H. L. Liu, Hwa Yaw Tam, W. H. Chung, Ping Kong Alexander Wai, N. Sugimoto

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


A low beat-noise highly polarized tunable fiber ring laser is proposed and experimentally demonstrated by using a Fabry-Pérot laser diode (FP-LD), which acts as a high-pass filter to suppress both the beat noise and TM-polarized light. The wavelength of the fiber ring lasers can be tuned from 1536.82 to 1570.72 nm in 1.12-nm steps and its maximum output power is about +3 dBm. The degree of polarization and extinction ratio of the laser output are about 99% and 60 dB, respectively. The beat-noise with and without the FP-LD was reduced dramatically by 50 dB.
Original languageEnglish
Pages (from-to)706-708
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number5
Publication statusPublished - 1 Mar 2006


  • Laser noise
  • Polarization
  • Ring lasers

ASJC Scopus subject areas

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

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