Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser

A high repetition frequency and microwave signal technology, applied in the field of optoelectronics, can solve problems such as difficult control and feedback, large environmental impact, and large loss, and achieve the effect of strong practicability, good microwave stability, and simple structure

Inactive Publication Date: 2014-10-15
SHANGHAI JIAO TONG UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large loss, large environmental impact, difficult to control and feedback
Therefore, electro-generated microwave technology encounters more and more technical difficulties that are difficult to overcome

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser
  • Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser
  • Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0021] Please see first figure 1 , figure 1 It is a device for generating microwave signals using mode-locked laser high repetition rate pulses in the present invention. As shown in the figure, a device for generating microwave signals using mode-locked laser high repetition rate pulses includes a mode-locked high repetition rate pulse laser 1, a photodiode 2, narrow-band filter 3, low-noise high-gain amplifier 4 and saturation amplifier 5; the output light of described mode-locked high-repetition-frequency pulse laser 1 shoots to described photodiode 2, and described photodiode 2, narrow-band filter The amplifier 3, the low-noise high-gain amplifier 4 and the saturated amplifier 5 are sequentially connected via a coaxial microwave line.

[0022] A beam splitter 6 is also...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed is a device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser. The device comprises a mode-locking high-repetition-frequency pulse laser device, a photodiode, a narrow-band filter, a low-noise high-gain amplifier and a saturation amplifier. The output laser of the mode-locking high-repetition-frequency pulse laser device is emitted to the photodiode, and the photodiode, the narrow-band filter, the low-noise high-gain amplifier and the saturation amplifier are sequentially connected through coaxial microwave wires. The device for generating microwave signals through the high-repetition-frequency pulse of the mode-locked laser is a novel reliable photo-generation microwave source technology, solves the problems of time synchronization of laser and microwaves and remote stable transmission of the microwaves and is simple in structure and high in microwave stability and practicality.

Description

technical field [0001] The invention belongs to the field of optoelectronics, and uses the ultrashort laser pulse output by the laser to directly generate a microwave signal source with low phase noise. It is not only a method to directly generate microwave signals, but also can solve the problem of time synchronization between laser and microwave and the problem of microwave long-distance transmission in the field of optoelectronic applications. Background technique [0002] In many applications, laser pulses and microwave signals are required to have a good time synchronization relationship. For example, photocathode microwave electron sources driven by lasers; pump-probe and free-electron lasers, etc. The synchronization of laser and microwave is achieved through phase-locked loop technology. The time jitter between the two after the above method is synchronized not only depends on the sensitivity of the phase-locked loop, but also depends on the stability of the laser ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01S1/02
Inventor 刘圣广朱鹏飞傅费超向导
Owner SHANGHAI JIAO TONG UNIV