Linear frequency-modulated signal microwave photon frequency multiplication method and device
A technology of linear frequency modulation signal and microwave photon, which is applied in the direction of radio wave measurement system, instrument, etc., can solve the problems of unable to filter and suppress spurious sidebands, increase frequency multiplication coefficient, and electric phase shifter can not be accurately shifted.
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[0071] In order to verify the frequency multiplication performance of the chirp signal of the present invention, the Optisystem simulation platform is used to perform the frequency multiplication processing of the chirp signal. In the simulation, the input signal is a baseband chirp signal with a bandwidth of 100MHz and a time width of 1024ns, and the laser output optical signal frequency 193.1THz, power 13dBm, an optical amplifier is added after the polarization coupler for power amplification, the gain is 10dB, and the detector responsivity is 0.9A / W.
[0072] figure 2 Is the modulation factor m 1 = 4, m 2 =1, the DC bias phase θ=0, and the analyzer angle β=27°, the frequency spectrum of the input chirp signal and the output detection signal. The output signal bandwidth reaches 800MHz, and the frequency multiplication factor of this microwave photon frequency multiplication system is 8.
[0073] image 3 Output the time-domain waveform diagram, instantaneous freq...
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