Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10344015 | Optical Fiber Technology | 2014 | 5 Pages |
Abstract
We propose a fault localization method for wavelength division multiplexing passive optical network (WDM-PON). A proof-of-concept experiment was demonstrated by utilizing the wavelength tunable chaotic laser generated from an erbium-doped fiber ring laser with a manual tunable fiber Bragg grating (TFBG) filter. The range of the chaotic lasing wavelength can cover the C-band. Basing on the TFBG filter, we can adjust the wavelength of the chaotic laser to match the WDM-PON channel with identical wavelength. We determined the fault location by calculating the cross-correlation between the reference and return signals. Analysis of the characteristics of the wavelength tunable chaotic laser showed that the breakpoint, the loose connector, and the mismatch connector could be precisely located. A dynamic range of approximately 23.8Â dB and a spatial resolution of 4Â cm, which was independent of the measuring range, were obtained.
Keywords
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Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Naijun Xu, Lingzhen Yang, Juan Zhang, Xiangyuan Zhang, Juanfen Wang, Zhaoxia Zhang, Xianglian Liu,