METHOD FOR TRANSMITTING AN ANALOG HIGH-FREQUENCY SIGNAL OVER A FIBER-OPTIC COMMUNICATION LINE Russian patent published in 2021 - IPC H04B10/2575 G02B6/42 H01S5/00 

FIELD: signal transmission.

SUBSTANCE: invention relates to the field of signal transmission and can be used to transmit an analog signal over optical fiber. A method for transmitting an analog high-frequency signal via a fiber-optic communication line, in which an analog high-frequency transmitted signal is supplied to an optical transmitter, this signal is modulated to modulate an optical signal of a laser diode, the generated optical signal is fed through an optical isolator to an optical fiber, the optical signal is fed to a photodiode, in which is converted into an electrical signal, it is amplified and fed to the output of the fiber-optic communication line, the temperature of the laser diode body is stabilized using a Peltier element, the dependence of the signal-to-noise ratio of the high-frequency signal at the output of the fiber-optic communication line on the input signal power is measured, the power of the analog high-frequency signal is recorded, automatic adjustment of the power of the analog high-frequency signal supplied to the laser diode, and stabilization of the bias current of the laser diode in accordance with the previously recorded values.

EFFECT: increase in the dynamic range of the transmitted signal.

1 cl, 1 dwg