کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11002584 | 1444918 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design of 1-μm-band mode-detection OTDR for 40â¯km range measurement and its performance evaluation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
This paper clarifies the requirements for applying 1-μm-band mode-detection optical time domain reflectometry (OTDR) to the loss monitoring of trunk cables with the goal of detecting slight changes in macro/micro-bending that are missed by conventional OTDR. In light of the requirements, the measurement system is enhanced through the use of coherent detection to fulfill the required range performance. Moreover, the enhanced system modulates the optical frequency and the state of polarization of the probe light during the measurement to suppress amplitude fluctuations in the backscattered waveforms. A field test is carried out to confirm the performance of the enhanced measurement system. The results demonstrate that the measurement range of over 40â¯km is achieved while amplitude fluctuations are reduced to as low as 0.02â¯dB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 45, November 2018, Pages 319-324
Journal: Optical Fiber Technology - Volume 45, November 2018, Pages 319-324
نویسندگان
Atsushi Nakamura, Yusuke Koshikiya, Tetsuya Manabe,