Wavelength aligning method and system
A wavelength and wavelength adjustment technology, applied in the field of communication, can solve the problems of poor temperature control accuracy and wavelength drift, and achieve the effect of improving system stability and reducing power
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[0014] The embodiment of the present invention proposes a method for adjusting the wavelength by sending an instruction and responding to the instruction to align the wavelength with the channel. In the method embodied in the embodiment of the present invention, as long as the temperature control driving power allows, the temperature difference has no influence on the control accuracy. Use ONU or ONT's LD to send upstream light, and enter the OLT receiver after two wavelength division multiplexers. If the wavelength of the light emitted by the ONU or ONT is the same as the center wavelength of the wavelength division multiplexer (wavelength Align with the channel), then the loss on the wavelength division multiplexer is the smallest, and the power reaching the receiver of the OLT is the largest.
[0015] The optical network unit ONU in the embodiment of the present invention includes a wavelength tunable module. The wavelength tunable module can adjust the transmitted wavelength a...
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