| 摘要 |
The present invention is to resolve problems in the existing DTS system. The objective of the present invention is to provide a DTS system which utilize the benefits of PLC packaging by using AWG, different from the existing patent document 1, and to omit the separate manufacturing of an expensive optical fiber rotator. In order to resolve the mentioned problems above, given in the example of the present invention, an optical fiber distribution temperature sensor system using the back scattering light of the optical fiber. The optical fiber distribution temperature sensor system includes a light source which generates incident light; a light splitter which delivers the incident light to a target optical fiber and outputs the back scattering light generated in the target optical fiber from the incident light; and AWG which separates the back scattering signal output from the light splitter into a anti-stokes scattering signal, a Rayleigh scattering signal, and a stokes scattering signal. [Reference numerals] (601) Light source;(602) Splitter;(604,605,606) Detector;(AA) Optical fiber to be measured |
