Active mode-locked optoelectronic oscillator based on phase control and implementation method thereof

CN122393705APending Publication Date: 2026-07-14GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Filing Date
2026-03-31
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing active mode-locked optoelectronic oscillators (OEOs) suffer from uneven pulse power due to gain modulation methods when generating microwave pulse signals, and phase modulation mode-locking has not yet been achieved in the current technology.

Method used

An active mode-locked optoelectronic oscillator based on phase modulation is used. The phase of the optoelectronic loop is periodically adjusted by an electric phase shifter. The single-tone voltage signal output by the function generator is used to control the electric phase shifter to generate microwave pulse signals.

Benefits of technology

The problem of pulse power imbalance under gain-controlled mode-locking was solved, achieving stable microwave pulse signal generation and improving the coherence and phase noise performance of the pulse signal.

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Abstract

The application discloses an active mode-locked optoelectronic oscillator based on phase control and an implementation method thereof, and relates to the technical field of optoelectronics. The active mode-locked optoelectronic oscillator comprises a laser, a modulator, an optical fiber, an optoelectronic detector, an electric amplifier, a filter, an electric power divider and an electric phase shifter which are sequentially connected to form a loop. The electric phase shifter is connected to the RF input port of the modulator to form a closed loop. One path of the electric power divider is connected to the electric phase shifter, and the other path is used as the output of the active mode-locked optoelectronic oscillator. The application utilizes the mechanism of phase control to realize active mode-locking in the optoelectronic oscillator, provides a new method for generating microwave pulses, and solves the problem of uneven pulse power in the case of rational number order mode-locking of gain control mode-locking.
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