Dual-frequency Optoelectronic Oscillator for Thermal-Insensitive Interrogation of a FBG Strain Sensor

We propose and experimentally demonstrate an approach to perform high-speed and high-resolution thermal-insensitive interrogation of a fiber Bragg grating (FBG) strain sensor based on a dual-frequency optoelectronic oscillator (OEO). Two phase-shifted FBGs (PSFBGs) are incorporated in the OEO loop t...

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Veröffentlicht in:	IEEE photonics technology letters 2017-02, Vol.29 (4), p.357-360
Hauptverfasser:	Xu, Ou, Zhang, Jiejun, Deng, Hong, Yao, Jianping
Format:	Artikel
Sprache:	eng
Schlagworte:	Digital signal processors fiber Bragg grating Fiber optics sensor High resolution Interrogation Microprocessors Microwave photonics Optical reflection optoelectronic oscillator Optoelectronics Passband Phase modulation Questioning Signal processing Strain Temperature measurement Temperature sensors
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