A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection
碩士 === 國立臺灣科技大學 === 電子工程系 === 103 === We present a method to measure the fault location in the optical fiber network based on the approach of coherent detection. The fault location monitoring of an optical fiber system can be achieved by measuring the interference signal that is formed by the refere...
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ndltd-TW-103NTUS54281322019-05-15T22:17:44Z http://ndltd.ncl.edu.tw/handle/525spr A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection 設計一同調偵測技術之光纖通訊網路斷點偵測模組 Pei-Chi Chen 陳佩琪 碩士 國立臺灣科技大學 電子工程系 103 We present a method to measure the fault location in the optical fiber network based on the approach of coherent detection. The fault location monitoring of an optical fiber system can be achieved by measuring the interference signal that is formed by the reference signal and the test signal. In the set up, the Fabry-Perot Laser Diode is used as the light source to carry a frequency-sweep sinusoidal signal into the fiber-optic network. The signal can then be sent through the optical coupler divide the probe signal into the test signal and the reference signal. Using optical circulator to sent the reflect signal into the second optical coupler, where the two signal meet and interfere. Through the electro-optic effect of the photodetector the interfered optical signal is received and converted into an electrical signal that is time varying. By analyzing the signal intensity over time and converting it into the length of the optical fiber, the location of breakpoint or fusion point in the optical fiber network can be determined. The method we present has the advantages of simple architecture and low manufacturing cost. The features make it easier to produce and set up in the optical fiber communication system. Chen-Wen Tarn 譚昌文 2015 學位論文 ; thesis 77 zh-TW |
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碩士 === 國立臺灣科技大學 === 電子工程系 === 103 === We present a method to measure the fault location in the optical fiber network based on the approach of coherent detection. The fault location monitoring of an optical fiber system can be achieved by measuring the interference signal that is formed by the reference signal and the test signal. In the set up, the Fabry-Perot Laser Diode is used as the light source to carry a frequency-sweep sinusoidal signal into the fiber-optic network. The signal can then be sent through the optical coupler divide the probe signal into the test signal and the reference signal. Using optical circulator to sent the reflect signal into the second optical coupler, where the two signal meet and interfere. Through the electro-optic effect of the photodetector the interfered optical signal is received and converted into an electrical signal that is time varying. By analyzing the signal intensity over time and converting it into the length of the optical fiber, the location of breakpoint or fusion point in the optical fiber network can be determined. The method we present has the advantages of simple architecture and low manufacturing cost. The features make it easier to produce and set up in the optical fiber communication system.
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author2 |
Chen-Wen Tarn |
author_facet |
Chen-Wen Tarn Pei-Chi Chen 陳佩琪 |
author |
Pei-Chi Chen 陳佩琪 |
spellingShingle |
Pei-Chi Chen 陳佩琪 A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
author_sort |
Pei-Chi Chen |
title |
A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
title_short |
A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
title_full |
A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
title_fullStr |
A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
title_full_unstemmed |
A Design of a Optical Fiber Network Fault Measurement Module Based on Coherent Detection |
title_sort |
design of a optical fiber network fault measurement module based on coherent detection |
publishDate |
2015 |
url |
http://ndltd.ncl.edu.tw/handle/525spr |
work_keys_str_mv |
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