论文信息 - Fiber optic intrusion sensor with the configuration of an optical time-domain reflectometer using coherent interference of Rayleigh backscattering

Fiber optic intrusion sensor with the configuration of an optical time-domain reflectometer using coherent interference of Rayleigh backscattering

The optical fiber intrusion sensor is investigated in the configuration of an optical time domain reflectometer using coherent interference of Rayleigh backscattering in a single mode fiber. When the modulation pulse width was 4 usec, the spatial resolution of this intrusion sensor was about 400m, the signal to noise ratio was about 3.3 and the bandwidth was about 30.5Hz.

[1] H. F. Taylor,et al. Feedback effects in a laser diode due to Rayleigh backscattering from an optical fibre , 1982 .

[2] W. Seo. Fiber Optic Intrusion Sensor Investigation. , 1994 .

[3] C. Su,et al. Properties of an external-cavity traveling-wave semiconductor ring laser. , 1992, Optics letters.

[4] Chris Bryson. Interferometric sensor system for security applications , 1994, Other Conferences.

[5] Anthony Dandridge,et al. Optical Fiber Sensor Technology , 1982 .