Power equalizer and adjustment method therefor

A power equalizer, comprising:

• an input/output assembly, a pre-attenuator, a multiplexer/demultiplexer, an optical convertor, and a light beam modulator, wherein:
• the input/output assembly is configured to input a first light beam;
• the pre-attenuator is configured to separately perform light energy attenuation on a plurality of first sub-wavelength light beams in the first light beam, wherein the plurality of first sub-wavelength light beams comprise a first sub-wavelength light beam, wherein an amount of light energy attenuation of the first sub-wavelength light beam is related to a wavelength of the first sub-wavelength light beam;
• the multiplexer/demultiplexer is configured to demultiplex the first light beam passing through the pre-attenuator such that the plurality of first sub-wavelength light beams disperse, and propagate the plurality of first sub-wavelength light beams to the optical convertor;
• the optical convertor is configured to propagate the plurality of first sub-wavelength light beams to the light beam modulator;
• the light beam modulator is configured to perform angular deflection on the plurality of first sub-wavelength light beams to obtain a plurality of second sub-wavelength light beams;
• the optical convertor is further configured to propagate the plurality of second sub-wavelength light beams to the multiplexer/demultiplexer;
• the multiplexer/demultiplexer is further configured to multiplex the plurality of second sub-wavelength light beams into a second light beam;
• the pre-attenuator is further configured to propagate the second light beam to the input/output assembly;
• and
• the input/output assembly is further configured to output the second light beam.

A power equalizer, comprising:

• an input/output assembly, a multiplexer/demultiplexer, a pre-attenuator, an optical convertor, and a light beam modulator, wherein:
• the input/output assembly is configured to input a first light beam;
• the multiplexer/demultiplexer is configured to demultiplex the first light beam into a plurality of first sub-wavelength light beams comprising a first sub-wavelength light beam, and propagate the plurality of first sub-wavelength light beams to the pre-attenuator;
• the pre-attenuator is configured to separately perform light energy attenuation on the plurality of first sub-wavelength light beams in the first light beam, wherein an amount of light energy attenuation of the first sub-wavelength light beam is related to a wavelength of the first sub-wavelength light beam;
• the optical convertor is configured to propagate the plurality of first sub-wavelength light beams passing through the pre-attenuator to the light beam modulator;
• the light beam modulator is configured to perform angular deflection on the plurality of first sub-wavelength light beams to obtain a plurality of second sub-wavelength light beams;
• the optical convertor is further configured to propagate the plurality of second sub-wavelength light beams to the pre-attenuator;
• the pre-attenuator is further configured to propagate the plurality of second sub-wavelength light beams to the multiplexer/demultiplexer;
• the multiplexer/demultiplexer is further configured to multiplex the plurality of second sub-wavelength light beams into a second light beam;
• and
• the input/output assembly is further configured to output the second light beam.