A multi-channel laser wavelength correlation monitor and monitoring method
A laser wavelength and correlation technology, applied in the field of monitors, can solve problems such as the practical application limitations of dense wavelength division multiplexing optical fiber communication systems, improve long-term working accuracy and test reliability, improve signal-to-noise ratio, and reduce channel interference effect
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[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0029] The multi-channel laser wavelength correlation monitor of the present invention adopts a multi-fiber collimator, an F-P etalon with adjustable cavity length and a photoelectric detector to form a wavelength monitoring device, and monitors and measures the frequency difference of each laser light source by scanning. Through the multiplexing of the F-P etalon by the multi-fiber head and the tunability of the etalon, the frequency difference monitoring and feedback of the multi-laser is realized, the structure is simple, and the multi-channel laser can be monitored at the same time, and the DFB laser does not need to be modulated, reducing It eliminates channel interference and plays a significant role in improving the system signal-to-noise ratio.
[0030] Specifically, such as figure 1 and 2 The first shown embodiment, taking the dual-c...
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