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Fiber Sensor Systems Based on Fiber Laser and Microwave Photonic Technologies
Department of Electrical Engineering, Xiamen University, Xiamen 361005, China
Institute of Information Optics, Zhejiang Normal University, Jinhua 321004, China
* Author to whom correspondence should be addressed.
Received: 14 March 2012; in revised form: 9 April 2012 / Accepted: 12 April 2012 / Published: 27 April 2012
Abstract: Fiber-optic sensors, especially fiber Bragg grating (FBG) sensors are very attractive due to their numerous advantages over traditional sensors, such as light weight, high sensitivity, cost-effectiveness, immunity to electromagnetic interference, ease of multiplexing and so on. Therefore, fiber-optic sensors have been intensively studied during the last several decades. Nowadays, with the development of novel fiber technology, more and more newly invented fiber technologies bring better and superior performance to fiber-optic sensing networks. In this paper, the applications of some advanced photonic technologies including fiber lasers and microwave photonic technologies for fiber sensing applications are reviewed. FBG interrogations based on several kinds of fiber lasers, especially the novel Fourier domain mode locking fiber laser, have been introduced; for the application of microwave photonic technology, examples of microwave photonic filtering utilized as a FBG sensing interrogator and microwave signal generation acting as a transversal loading sensor have been given. Both theoretical analysis and experimental demonstrations have been carried out. The comparison of these advanced photonic technologies for the applications of fiber sensing is carried out and important issues related to the applications have been addressed and the suitable and potential application examples have also been discussed in this paper.
Keywords: fiber optics sensors; sensor interrogators; fiber lasers; microwave photonics; microwave photonic filters; microwave photonic generation; fiber Bragg gratings
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MDPI and ACS Style
Fu, H.; Chen, D.; Cai, Z. Fiber Sensor Systems Based on Fiber Laser and Microwave Photonic Technologies. Sensors 2012, 12, 5395-5419.
Fu H, Chen D, Cai Z. Fiber Sensor Systems Based on Fiber Laser and Microwave Photonic Technologies. Sensors. 2012; 12(5):5395-5419.
Fu, Hongyan; Chen, Daru; Cai, Zhiping. 2012. "Fiber Sensor Systems Based on Fiber Laser and Microwave Photonic Technologies." Sensors 12, no. 5: 5395-5419.