کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4957110 | 1444931 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Derivation of a reflectogram using digital lock-in detection in coherent FMCW reflectometry based on a uniformly pumped Brillouin grating
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Derivation of a reflectogram using digital lock-in detection in coherent FMCW reflectometry based on a uniformly pumped Brillouin grating Derivation of a reflectogram using digital lock-in detection in coherent FMCW reflectometry based on a uniformly pumped Brillouin grating](/preview/png/4957110.png)
چکیده انگلیسی
We used digital lock-in detection to demodulate in-phase and quadrature components from a balanced mixer output in coherent FMCW reflectometry based on a uniformly pumped Brillouin grating. All the frequency components contributing to a reflectogram were extracted without attenuation by using a rectangular window in the frequency domain. We succeeded in reshaping a deformed reflectogram into a step-wise reflectogram for a single mode fiber that consisted of two fibers with different Brillouin frequencies. We found multiplicative noise to be dominant in the retrieved reflectograms, whose signal levels typically varied between ±7 and ±10%. We compared the observed changes with those estimated from power fluctuations in the amplified probe and pump light waves.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 32, December 2016, Pages 82-87
Journal: Optical Fiber Technology - Volume 32, December 2016, Pages 82-87
نویسندگان
Kazumasa Takada, Takahiro Yasuno,