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A Photoelectric Oscillator Based on Multiple Phase-locked Filtering Structure

A technology of photoelectric oscillator and filter structure, which is applied in the direction of solid-state lasers, etc., can solve the problems that the bottom noise of the signal source cannot be calibrated, the signal source analyzer cannot be calibrated, and the bottom noise cannot be calibrated, etc., and achieve superior phase noise and phase noise indicators. , The effect of improving the phase noise near the carrier frequency

Active Publication Date: 2019-01-25
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0005] The object of the present invention is to provide a kind of optoelectronic oscillator based on multiple phase-locked filtering structure, solve the following problems that the existing signal source analyzer cannot calibrate: 1, due to the limitation of the noise performance of the signal source itself, the signal source cannot be calibrated Bottom noise; 2. After the signal source analyzer uses the cross-correlation algorithm, the bottom noise cannot be calibrated; 3. The bottom noise in the entire Fourier analysis frequency range cannot be calibrated

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  • A Photoelectric Oscillator Based on Multiple Phase-locked Filtering Structure

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Embodiment Construction

[0024] In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0025] like figure 1 As shown, the photoelectric oscillator based on the multiple phase-locked filtering structure provided in this embodiment includes: a DFB laser 1, an electro-optical modulator 2, a photodetector 3, a first mixer 4, a YIG oscillator 5, a first lock Phase filter loop 6, second mixer 7, harmonic generator 8, third mixer 9, second phase lock filter loop 10, 500MHz surface acoustic wave oscillator 11, fourth phase lock filter loop 12. 100MHz voltage controlled oscillator 13, third phase-locked filter loo...

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Abstract

The invention discloses a multi-phase-locked filter structure-based optoelectronic oscillator, which comprises a positive feedback loop with a plurality of phase-locked filter loops and a lock loop. According to the multi-phase-locked filter structure-based optoelectronic oscillator, near carrier frequency phase noise of the optoelectronic oscillator is improved and side-mode suppression of the single-loop structure optoelectronic oscillator is improved.

Description

technical field [0001] The present invention relates to optoelectronic oscillators. More specifically, it relates to an optoelectronic oscillator based on a multiple phase-locked filtering structure. Background technique [0002] At present, the signal source analyzers on the market mainly include the imported models such as E5052A / B, FSUP and FSWP. The components of these signal source analyzers mainly include phase detector, internal reference source, digital loop, high-speed AD and digital processor, etc. . Due to the use of digital cross-correlation technology, the bottom noise of this type of signal source analyzer is very superior, and it only designs one input port for the source to be tested, which makes it possible to verify the phase noise test system according to the national military standard GJB / G3414-98 The phase detection bridge method in the Regulations cannot be used to measure the bottom noise, so the bottom noise can only be calibrated by using a frequen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/02
CPCH01S1/02
Inventor 阎栋梁柳丹
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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