Remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion

A high-frequency microwave, oscillator source technology, applied in optical fiber transmission, eliminating distortion/dispersion, etc., can solve problems such as large phase noise, and achieve the effect of suppressing noise, suppressing intensity noise, and novel solutions

Pending Publication Date: 2021-01-12
LIAOCHENG UNIV
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Problems solved by technology

[0004] The optical device generates light waves of different wavelengths to beat the frequency to generate an electric high-frequency local oscillator source. However, there is a large phase noise in

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  • Remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion
  • Remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and implementation.

[0014] figure 1 It is a block diagram of a remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion. figure 1 As shown, the present invention proposes a remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion. After the laser light generated by the narrow-linewidth DFB laser 1 is split by the 60:40 splitter 2, 60% of the The laser light enters the high-speed optical millimeter-wave generation and transmission system 3; 40% of the laser light enters the new remote high-frequency microwave oscillation source system through the polarization controller 4; the remote high-frequency microwave oscillation source system and the optical millimeter-wave system share the same narrow linewidth DFB laser 1; Agilent 43.2 Gbit / s bit error detector 81250 outputs...

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Abstract

The invention provides a remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion. A same DFB laser light source is adopted to generate high-speed light millimeter waves and a remote high-frequency microwave oscillation source, so that phase noise can be effectively suppressed; the adopted DFB laser has the characteristics of narrow linewidth andhigh side mode rejection ratio, and can effectively suppress intensity noise; the remote high-frequency microwave oscillation source provided by the invention is novel in generation scheme, simple and feasible, and can effectively suppress noise. The method and the system can be used as an important reference for exploring and researching a high-bit-rate optical millimeter wave system, and can provide important support for deep research in the fields of microwave photonics, nonlinear optics, optical fiber communication, optical information processing, a new generation of information technology and the like.

Description

technical field [0001] The invention relates to a remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion, which can be applied to the fields of microwave photonics, nonlinear optics, optical fiber communication, optical information processing, and new generation information technology. Background technique [0002] In recent years, various services such as big data, broadband streaming media, and 4G / 5G traffic have continued to increase rapidly, and the demand for high-speed and large-capacity wireless communication is increasing. In order to realize wireless broadband communication, the optical millimeter-wave communication technology Radio-over-Fiber (RoF), which combines optical fiber communication technology and high-frequency wireless access, was born as needed. At present, optical millimeter wave generation, transmission and reception technology, as a newly developed communication technology, has become one of the r...

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Application Information

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IPC IPC(8): H04B10/2513
CPCH04B10/2513
Inventor 黎昕郑宏军白成林胡卫生
Owner LIAOCHENG UNIV
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