Device for actively calibrating optical fiber transmission of microwave signals by means of photoelectric oscillator
A photoelectric oscillator and microwave signal technology, which is applied in the field of microwave photonics, can solve the problems of large correction error and low correction precision, and achieve the effect of realizing practicality, overcoming low precision and stable structure
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[0015] The device for actively calibrating microwave signal optical fiber transmission using a photoelectric oscillator provided by the present invention includes: a central station 20 and a base station 50, and the central station 20 and the base station 50 are connected through a single-mode optical fiber 40 . The device for actively calibrating microwave signal optical fiber transmission using a photoelectric oscillator, wherein the central station 20 includes: a laser 21 for carrying microwave signals that need to be transmitted, and the optical signals are input to a double-balanced Mach-Zehnder intensity modulator 22 to generate modulation The sidebands are then passed through the optical filter. For the Mach-Zehnder modulator, one Mach-Zehnder modulation is biased at the minimum transmission point, so the carrier is suppressed, and the other Mach-Zehnder modulator is biased at the maximum transmission point, through The optical filter performs filtering to generate a sin...
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