Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laser device frequency stability measuring system

A frequency stability and laser technology, applied in the laser field, can solve the problems of difficult measurement of laser frequency stability and inaccurate measurement results, and achieve the effect of improving accuracy and improving beat frequency efficiency.

Inactive Publication Date: 2014-08-13
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a laser frequency stability measurement system to solve the problems of difficult measurement of laser frequency stability and inaccurate measurement results

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
  • Laser device frequency stability measuring system
  • Laser device frequency stability measuring system
  • Laser device frequency stability measuring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] see figure 1 As shown, the present invention provides a measuring instrument for laser frequency stability, comprising:

[0023] A test laser interface 1, a first tunable laser 2 and a second tunable laser 3, the test laser interface 1 is connected to a test laser through a polarization maintaining optical fiber, and the test laser input interface 1 is an optical fiber The flange, the first tunable laser 2 and the second tunable laser 3 are single-frequency lasers with identical models and parameters, and their tuning range covers the center wavelength of the laser to be tested;

[0024] An optical coupler 4, the first input end of which is connected to the output end of the laser interface 1 to be tested through a polarization-maintaining fiber, the second input end is connected to a first adjustable laser 2 through a polarization-maintaining fiber, and the third input end is connected through a polarization-maintaining fiber The optical fiber is connected to a second...

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

A laser device frequency stability measuring system comprises a laser device interface to be measured, a first adjustable laser device, a second adjustable laser device, an optical coupler, an optical output interface, a photoelectric detector, a power divider, a microwave output port, a frequency counter and a signal output interface, wherein the laser device interface to be measured is connected with the laser device to be measured; the first input end of the optical coupler is connected with the output end of the laser device interface to be measured, the second input end of the optical coupler is connected with the first adjustable laser device, and the third input end of the optical coupler is connected with the second adjustable laser device; the input end of the optical output interface is connected with the second output end of the optical coupler; the input end of the photoelectric detector is connected with the first output end of the optical coupler; the output end of the power divider is connected with the output end of the photoelectric detector; the input end of the microwave output port is connected with he second output end of the power divider; the input end of the frequency counter is connected with the first output end of the power divider; the input end of the signal output interface is connected with the output end of the frequency counter, the output end of the signal output interface is connected with an information processing unit, and the information processing unit has the functions of data processing, computation, storage and the like.

Description

technical field [0001] The invention belongs to the technical field of lasers, and specifically relates to a measurement system for the frequency stability of lasers, which mainly utilizes the principle of beat frequency detection to accurately measure the frequency stability of lasers. Background technique [0002] Lasers have the advantages of available frequency bandwidth, large information capacity, good directivity, high power, and long transmission distance. Therefore, they are often used as light sources and are widely used in industry, agriculture, precision measurement and detection, communication and information processing, medical treatment, military affairs, etc. Various aspects. Among the performance indicators of lasers, frequency stability is a very important indicator, especially in laser measurement, using the interference principle to measure various physical quantities such as length, displacement, speed, etc., the frequency stability of the laser will dir...

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
IPC IPC(8): G01M11/02
Inventor 刘建国王玮钰陈伟郭锦锦祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com