The invention provides a balance optical
microwave regeneration
system which comprises a
phase discrimination module and a
radio frequency (RF)
processing module, wherein the
phase discrimination module and the RF
processing module are sequentially connected with a
peripheral signal source used for providing a
laser pulse
signal; the
phase discrimination module comprises an opto-
isolator, a Sagnac
fiber-optic ring and a balance
detector which are sequentially connected; the Sagnac
fiber-optic ring comprises a 3*3
optical fiber coupler and a phase modulator; a first input end of the 3*3
optical fiber coupler is connected with the opto-
isolator, a second input end of the 3*3
optical fiber coupler is connected with a first optical input port of the balance
detector, a third input end of the 3*3
optical fiber coupler is connected with a second optical input port of the balance
detector, a second output end of the 3*3
optical fiber coupler is connected with a first optical interface of the phase modulator, and a third output end of the 3*3
optical fiber coupler is connected with a second optical interface of the phase modulator. The balance optical
microwave regeneration
system is simple in structure, low in
noise, high in stability, high in
jitter accuracy, low in cost and convenient to operate.