Radio-frequency signal perception device based on photoelectric oscillator
A technology of radio frequency signals and sensing devices, applied in the field of optoelectronics, can solve problems such as power fluctuations of intermediate frequency signals, modulation efficiency and dynamic range changes, bias point drift, etc., and achieve the effects of improved isolation, compact structure, and mature manufacturing technology
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[0031] In order to describe the present invention in more detail, the technical solution of the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0032] The present invention is based on the photoelectric oscillator radio frequency signal sensing device such as figure 1 As shown, the device includes a laser source 1, a polarization controller 2, a Mach-Zindel modulator 3, an electromagnetic field sensor 4, a fiber coupler 5, a photodetector 6, a tunable radio frequency band pass filter 7, a radio frequency amplifier 8, a light Filter 9, photodetector 10, and mid-band pass filter 11.
[0033] Among them, the laser source 1, the polarization controller 2, the Mach-Zindel modulator 3, the electromagnetic field sensor 4, the optical fiber coupler 5, and the photodetector 6 are connected in turn by optical fibers; the photodetector 6, the adjustable radio frequency band pass filter 7, the radio frequency The RF input ports of ...
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