Fault detection device and detection method for wavelength division multiplexing passive optical network
A passive optical network and wavelength division multiplexing technology, applied in the field of communication measurement and optical network, can solve the problems of random code correlation method spatial resolution, no obvious improvement in blind area, and bandwidth bottleneck of electronic devices.
Active Publication Date: 2015-09-09
深圳市兆能讯通科技有限公司
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[0008] The purpose of the present invention is to provide a device and method for fault detection in wavelength division multiplexing passive optical networks, to realize fault detection in optical fiber networks with high spatial resolution and no dead zone, in order to solve the limitation of the bandwidth bottleneck of electronic devices, so that The spatial resolution and blind area of the random code correlation method have not been significantly improved
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[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] The invention relates to a device for wavelength-tunable chaotic fiber laser used for fault detection of wavelength division multiplexing passive optical network, including a wavelength-tunable fiber laser chaotic source, a fiber coupler, an optical circulator, a wavelength division multiplexer, and a photoelectric detector Ⅰ, photodetector Ⅱ and data processing system.
[0021] The optical signal sent by the wavelength tunable fiber laser chaotic source described in the technical solution of the above generating device of the present invention is a wavelength tunable chaotic laser; the optical signal transmission is optical fiber transmission; the wavelength tunable chaotic laser fiber A ring cavity, a linear cavity, or a figure-of-eight fiber laser generate a chaotic source by using a nonlinear effect to realize...
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The invention disclose a device for detecting wave-division multiplexing passive optical network failure and a method thereof; the device comprises a laser source, an optical circulator, a wave-division multiplexer, a photoelectric detector and a data processing system, wherein the laser source is an optical fiber laser chaos source with tunable wave length; the method comprises a chaos correlation method for measuring any failure point on more than two channels of the wave-division multiplexing passive optical network. A wideband chaos optical fiber laser source for realizing tunable wave length in a tunable optical fiber laser device is used for detecting different channels of the wave-division multiplexing passive optical network through the tuning of the chaos laser wave length, a confliction between a measurement distance and a space resolution in a time-of-flight method is solved, and the high measurement precision and short dead zone are realized through the wideband chaos.
Description
technical field [0001] The invention relates to a device for wavelength-tunable chaotic fiber laser used for fault detection of wavelength division multiplexing passive optical network, including optical wavelength-tunable fiber laser chaotic source, optical fiber coupler, optical circulator, wavelength division multiplexer, and photoelectric detector And a data processing system, also including a wavelength tunable chaotic fiber laser for a fault detection method in a wavelength division multiplexing passive optical network. Specifically, it is a device and method for detecting faults in wavelength division multiplexing passive optical networks using wavelength-tunable chaotic lasers generated by fiber lasers, which are used in communication measurement, optical networks and other fields. Background technique [0002] Wavelength division multiplexing passive optical network (WDM-PON) is a passive optical fiber access network using wavelength division multiplexing technology...
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IPC IPC(8): H04B10/077H04B10/50H04J14/02H04B10/07
Inventor 杨玲珍冯亚强梁丽萍薛保平
Owner 深圳市兆能讯通科技有限公司