Development of fiber optical sensor with resonator

Huihua Kenny Chiang; Chou-Keng Hsieh; Yu-Cheng Su; Jeng-Yang Chang

doi:10.1117/12.762475

13 February 2008 Development of fiber optical sensor with resonator

Huihua Kenny Chiang, Chou-Keng Hsieh, Yu-Cheng Su, Jeng-Yang Chang

Proceedings Volume 6852, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII; 68520F (2008) https://doi.org/10.1117/12.762475
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

An optical fiber sensor based on evanescent wave sensing and excitation light resonance using a pair of optical reflectors adjacent to two ends of the optical fiber is presented. Excitation light is coupled into the fiber optical sensor through a hole in the first reflector. The excitation light starts to resonate between the reflectors, and results in the amplification of the fluorescent signal, which is generated by the excitation of the analyte binding to the surface of the active fiber sensing area. This device was successfully demonstrated in achieving over 600% amplification in the output signal. This design provides a simple and efficient method in improving the S/N and the sensitivity of the optical fiber evanescent wave sensor over the traditional approach.

Citation Download Citation

Huihua Kenny Chiang, Chou-Keng Hsieh, Yu-Cheng Su, and Jeng-Yang Chang "Development of fiber optical sensor with resonator", Proc. SPIE 6852, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII, 68520F (13 February 2008); https://doi.org/10.1117/12.762475

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