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

Method for prolonging average fault-free working time of laser frequency stabilization system

A mean-failure-free, working-time technology, applied in lasers, laser parts, semiconductor lasers, etc., can solve problems affecting normal use, loss of lock of the automatic frequency stabilization system of the laser, etc., to improve stability and prolong mean trouble-free operation. time, the effect of improving locking ability

Active Publication Date: 2019-03-01
陕西聚力思创通信科技有限公司
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing laser automatic frequency stabilization system, due to the parameter drift of the physical system, the change of the system operating point, etc., the control voltage required for the laser automatic frequency stabilization system to lock often exceeds the PI (proportional integral) control Therefore, it is necessary to propose a method to prolong the average trouble-free working time of the laser frequency stabilization system.

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
  • Method for prolonging average fault-free working time of laser frequency stabilization system
  • Method for prolonging average fault-free working time of laser frequency stabilization system
  • Method for prolonging average fault-free working time of laser frequency stabilization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] 1) The PI control unit in the laser automatic frequency stabilization system locks the wavelength of the laser on the physical reference;

[0037] 2) sampling the locking voltage Vc output by the PI control unit in step 1) with an AD converter with 16-bit resolution;

[0038] 3) According to the output data of the AD converter in step 2), it is judged in real time whether the locking voltage Vc output by the PI control unit deviates from Vm by more than the threshold Vh.

[0039] Here Vm is the central value of the output voltage range of the PI control unit, which is 2.5V in the system of this embodiment; Vh is the threshold value of the locking voltage deviating from Vm set in order to ensure the stable operation of the laser automatic frequency stabilization system, here It is set to 1V in the embodiment system;

[0040] 4) If the locking voltage Vc in step 3) deviates from Vm by more than the threshold value Vh, calculate the required change ΔI of the driving curre...

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

The invention discloses a method for prolonging average fault-free working time of a laser frequency stabilization system. A locking voltage value output from a PI control unit in a laser automatic frequency stabilization system is sampled, and the locking voltage value is slowly returned to a central value of an action range by adjusting a current value output to a laser tube when that a voltageexceeds a threshold is monitored. By the method, the locking capability of the laser automatic frequency stabilization system can be improved, the locking stability is improved, so that the average fault-free working e of the laser frequency stabilization system is prolonged.

Description

technical field [0001] The invention belongs to the field of laser automatic frequency stabilization, and in particular relates to a method for prolonging the average trouble-free working time of a laser frequency stabilization system. Background technique [0002] Lasers play an important role in the systems of quantum optics, quantum information and cold atomic physics. In order to reduce the drift of lasers and make them work better, it is often necessary to lock the frequency of lasers on a certain reference standard to obtain Wavelength stabilized laser source. However, in the existing laser automatic frequency stabilization system, due to the parameter drift of the physical system, the change of the system operating point, etc., the control voltage required for the laser automatic frequency stabilization system to lock often exceeds the PI (proportional integral) control Therefore, it is necessary to propose a method to prolong the average trouble-free working time of...

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): H01S3/13H01S5/068
CPCH01S3/1305H01S5/06808
Inventor 李立波李建平
Owner 陕西聚力思创通信科技有限公司
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