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Proceedings Article

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

[+] Author Affiliations
Allan C. L. Wong, W. H. Chung, H. Y. Tam, C. Lu

Hong Kong Polytechnic Univ. (Hong Kong, China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860Y (January 19, 2011); doi:10.1117/12.888341
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

abstract

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.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Allan C. L. Wong ; W. H. Chung ; H. Y. Tam and C. Lu
"Multiplexed extremely short distributed Bragg reflector fiber laser array for large-scale sensing applications", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860Y (January 19, 2011); doi:10.1117/12.888341; http://dx.doi.org/10.1117/12.888341


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