All-optical phase modulator
An optical phase and modulator technology, applied in optical demodulation, optics, instruments, etc., can solve the problems of inability to generate fs-level electrical pulses, difficult processes, and instability.
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[0058] Such as Figure 7 As shown, a fast tunable all-optical phase modulator includes an optical coupler (CP), a tunable delayer, a first semiconductor optical amplifier (SOA1), a first optical filter, a tunable attenuator, a first wave A division multiplexing coupler, a local laser, a second wavelength division multiplexing coupler, a second semiconductor optical amplifier (SOA2), an optical circulator, and a second optical filter.
[0059] Among them, the wavelength from the outside of the all-optical phase modulator is λ 1 The input optical signal of the optical coupler is connected with the input end of the optical coupler, and one output end of the optical coupler is connected with the input end of the tunable delayer; the other output end of the optical coupler is connected with the first wavelength division multiplexing coupler One input end of the tunable delayer is connected with one input end of the second wavelength division multiplexing coupler; the other input e...
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