On the basis of the complex cavity model, the feedback-induced instabilities which may cause coherence collapse in single-mode distributed feedback (DFB) fiber laser sensors are analyzed. We measure the longitudinal operating mode and the frequency shift of DFB fiber laser due to Rayleigh backscattering, and obtain quantitative agreement between simulation and experiments in long-time investigations. All these study can provide references to design a novel form of DFB fiber laser sensor system utilizing external optical feedback, and the feasibility of the sensor has been proved.
Coherence-collapse characteristics of single-mode DFB fiber laser sensors with external optical feedback
2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications ; 2011 ; Beijing,Beijing,China
Proc. SPIE ; 8199
2011-11-22
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Coherence collapse in semiconductor diode lasers with phase conjugate feedback
British Library Conference Proceedings | 2000
|Loss Behavior of Single-mode Optical Fiber Microbend Sensors
British Library Online Contents | 2001
|Noise Characteristics of a Single-Mode Laser Diode Subject to Strong Optical Feedback
British Library Online Contents | 2002
|Suppression of coherence collapse in semiconductor diode lasers with short external cavities
British Library Conference Proceedings | 2000
|In-Line Single-Mode Optical Fiber Interferometric Refractive Index Sensors
British Library Online Contents | 2009
|