All-fiber double ring resonator using multiport coupler

Gamal Mohamed Abdel Abd-el-Hamid

doi:10.1117/12.254222

14 October 1996 All-fiber double ring resonator using multiport coupler

Gamal Mohamed Abdel Abd-el-Hamid

Proceedings Volume 2840, Fly-by-Light III; (1996) https://doi.org/10.1117/12.254222
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

We present a device which has potential for use as a fiber sensor. The device is formed by leading two of the output parts of a multiport coupler (eight port coupler) of square form, back to two of the input ports to form a double ring resonator structure. A 4 X 4 square fused coupler with coupling coefficient Kl equals 0.348 II and an excess loss of about 0.5 dB and a loop loss of about 2 dB was fabricated in our laboratories. The double ring resonator was formed as described. By modulating one ring with Pz element, the finesses of the device as approximately 30. Therefore, the two rings may provide one ring as a reference arm and the other ring as a sensing arm. Thus, the device may have potential for use as a sensitive fiber optic sensor.

Citation Download Citation

Gamal Mohamed Abdel Abd-el-Hamid "All-fiber double ring resonator using multiport coupler", Proc. SPIE 2840, Fly-by-Light III, (14 October 1996); https://doi.org/10.1117/12.254222

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