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Fiber-fault monitoring technique for passive optical networks based on fiber Bragg gratings and semiconductor optical amplifier |
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| Authors: | Chien-Hung Yeh Sien Chi |
| Affiliation: | a Transmission System Department, Computer and Communications Research Laboratories, Industrial Technology Research Institute, Rm. 223, Bldg. 14, 195, Sec. 4, Chung Hsing Road, Chutung, Hsinchu 310, Taiwan b Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 300, Taiwan c Department of Electrical Engineering, Yuan Ze University, Chung-Li 320, Taiwan |
| Abstract: | A novel monitoring method for in-service fault indemnification in passive optical networks (PONs) is proposed and demonstrated experimentally. The proposed monitoring technique is based on fiber Bragg grating (FBG) sensors and fiber laser scheme, and a semiconductor optical amplifier (SOA) is used to serve as a gain medium. By detecting the number of the wavelength lasing, the fiber-fault can be monitored without affecting the in-service channels. Moreover, the strain behavior on the FBGs has also been discussed. |
| Keywords: | Fiber-fault monitoring FBG SOA Fiber laser |
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