Radio frequency photon filter with switchable pass-stop band
A photonic filter and radio frequency technology, applied in the field of radio frequency photonics, can solve the problems of high cost, a large number of bandpass and bandstop filters, filter noise interference, etc.
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[0010] The present invention will be further described below in conjunction with the accompanying drawings.
[0011] Such as figure 1 , a radio-frequency photonic filter with switchable pass-stop band, comprising: a distributed feedback Bragg laser 1, a first optical polarization controller 21, a second optical polarization controller 22, an optical phase modulator 3, and a 1×2 optical coupler 4. Optical isolator 5, optical phase shift regulator 6, single-mode optical fiber 7, optical circulator 8, optical intensity modulator 9, radio frequency signal generator 10, erbium-doped fiber amplifier 11, optical bandpass filter 12, photoelectric A detector 13 and an optical network analyzer 14 . The connection of each device is as follows:
[0012] The output port of the distributed feedback Bragg laser 1 is connected to the input port of the first optical polarization controller 21, and the output port of the first optical polarization controller 21 is connected to the optical inp...
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Abstract
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