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

Allan C. L. Wong; W. H. Chung; H. Y. Tam; C. Lu

doi:10.1117/12.888341

19 January 2011 Multiplexed extremely short distributed Bragg reflector fiber laser array for large-scale sensing applications

Allan C. L. Wong, W. H. Chung, H. Y. Tam, C. Lu

Author Affiliations +

Proceedings Volume 7986, Passive Components and Fiber-Based Devices VII; 79860Y (2011) https://doi.org/10.1117/12.888341
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

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.

Citation Download 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 (19 January 2011); https://doi.org/10.1117/12.888341

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