Self-locking photoelectric oscillator and method thereof

An optoelectronic oscillator and fixed-type technology, applied in lasers, laser parts, circuits, etc., can solve the problems of insufficient phase noise performance, insufficient frequency stability, and insufficient frequency, and achieve simple structure, good frequency stability, The effect of low loss

Inactive Publication Date: 2014-12-03
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with electric oscillators, optoelectronic oscillators based on the various structures mentioned above solve the problems of insufficient frequency and poor phase noise performance.

Method used

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  • Self-locking photoelectric oscillator and method thereof
  • Self-locking photoelectric oscillator and method thereof
  • Self-locking photoelectric oscillator and method thereof

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with drawings and embodiments.

[0015] Such as figure 1 As shown, the self-locking optoelectronic oscillator includes a semiconductor optical amplifier 1, a narrow-band optical filter 2, a fiber beam splitter 3, a first optical circulator 6, a comb optical filter 7, a second optical circulator 8, an electro-optical modulation device 9, photodetector 10, microwave amplifier 11, microwave coupler 12; output end 4 of semiconductor optical amplifier 1, narrowband optical filter 2, fiber beam splitter 3, port 1 of the first optical circulator 6 through optical fiber The 2 ports of the first optical circulator 6, the comb optical filter 7, and the 2 ports of the second optical circulator 8 are connected in sequence through optical fibers, and the 3 ports of the second optical circulator 8 are connected with the semiconductor optical amplifier 1 through The optical fibers are connected to form a closed opti...

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Abstract

The invention discloses a self-locking photoelectric oscillator and a method thereof. The self-locking photoelectric oscillator includes devices such as a semiconductor optical amplifier, an optical circulator, a narrow-band optical filter, a fiber beam splitter, a comb optical filter, an electrooptical modulator, a photoelectric detector, a microwave amplifier, and a microwave coupler and the like. A closed optical loop formed by the semiconductor optical amplifier, the optical circulator, the narrow-band optical filter, an output end of the fiber beam splitter and the comb optical filter generates stable single longitudinal mode laser output. A closed photoelectric loop formed by the other output end of the fiber beam splitter, the electrooptical modulator, the optical circulator, the comb optical filter, the photoelectric detector, the microwave amplifier and an output end of the microwave coupler generates stable single-frequency microwave signals. Multi-order harmonic-wave sidebands generated through modulation of the photoelectric loops undergo model selection via the comb optical filter so that a frequency self-locking effect is generated and generated microwave signals have the advantages of great frequency stability and high frequency purity.

Description

technical field [0001] The invention relates to the field of microwave photons and optical communication where microwave / millimeter wave signals are generated, in particular to a self-locking photoelectric oscillator and a method thereof. Background technique [0002] In the fields of modern radar, wireless communication, software radio, test and measurement, high-quality microwave sources with low phase noise, high spectral purity, and high frequency stability play an important role. For traditional RF / microwave signal sources, such as frequency synthesizers, electronic oscillators, etc., microwave signals have disadvantages such as large phase noise, low spectral purity, insufficient frequency, and insufficient frequency stability. [0003] An optoelectronic oscillator is a microwave signal device that converts continuous light energy into a periodically transformed microwave signal through an optoelectronic device using the advantages of microwave photonics. It solves ma...

Claims

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Application Information

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IPC IPC(8): H01S3/098H01S3/10
Inventor 每媛池灏金韬郑史烈章献民金晓峰
Owner ZHEJIANG UNIV
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