Photon multi-frequency doubling ultra-high radio frequency signal oscillator

Abstract

The invention discloses a photon multi-frequency doubling ultra-high radio frequency signal oscillator, which is suitable for the fields of optoelectronic technology, laser technology and optical communication. The device comprises a mode-locked laser (1), an optical isolator (2), an optical circulator (3), a phase-shifted chirped fiber grating (4), a 1*2 optical coupler (6), an optical polarization controller (7), an optical traveling wave phase modulator (8), a low-frequency signal amplifier (9), a low-frequency signal generator (10) and an optical band-stop filter (11), an erbium-doped fiber amplifier (12), an optical beam splitter (13), an optical spectrum analyzer (14) and a high-speed photodetector (15).

Description

technical field [0001] The invention belongs to the information optoelectronic technology, is applicable to the fields of laser technology and optical communication, and in particular relates to a photon multi-frequency ultra-high radio frequency signal oscillator. Background technique [0002] High-speed radio frequency signals are widely used in sonar, radar, mobile communication and other fields. At present, high-speed radio frequency signals are usually realized by RC oscillators, LC oscillators or crystal oscillators in electrical methods. However, the electronic oscillator has poor stability, noise interference, and signal distortion. Photons do not have charge, which can effectively overcome the "inherent bottleneck" of electrons. Taking advantage of the parallel processing of photons, high spectral purity and precise frequency stability, optical methods can obtain better radio frequency signals. The optical resonator modulated radio frequency signal oscillator is t...

AI Technical Summary

Problems solved by technology

Optical resonator modulated radio frequency signal oscillator is the most common type at present. Its structure is simple, but usually as the oscillation frequency increases, the modulation efficiency decreases significantly, resulting in fluctuations in the amplitude of the radio frequency output signal, and it is impossible to achieve fast and accurate switching of the oscillation frequency.

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