Multiplexed extremely short distributed bragg reflector fiber laser array for large-scale sensing applications

Allan C.L. Wong, W. H. Chung, Hwa Yaw Tam, Chao Lu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


We report the fabrication of extremely short linear-cavity distributed Bragg reflector fiber lasers (DBR-FLs). It has a total length of 7 mm, with the nominal cavity of only 0.4 mm. The FL has a linewidth and polarization beat frequency of 220 Hz and 18.9 MHz, respectively. The relaxation oscillation frequency and its relative peak are 120 kHz and -75dB/Hz, respectively. The FL exhibited low-noise characteristics, with an intensity noise of -107 dB/Hz at 1 MHz. We constructed a FL sensor array that has great potentials for large-scale, high sensitivity sensing applications.
Original languageEnglish
Title of host publicationPassive Components and Fiber-Based Devices VII
Publication statusPublished - 29 Mar 2011
EventPassive Components and Fiber-Based Devices VII - Shanghai, China
Duration: 8 Dec 201012 Dec 2010


ConferencePassive Components and Fiber-Based Devices VII


  • Distributed Bragg reflector fiber laser
  • Fiber Bragg grating
  • Fiber laser sensor
  • Multiplexing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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