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

Generating method and generating device for optical frequency comb with flexibly adjustable comb tooth spacing

A generation method and optical frequency comb technology, which is applied in the field of microwave photonics, can solve the problems of large carrier noise, unclear phase relationship between comb teeth, poor adjustment flexibility of comb teeth spacing, etc., to achieve reduced phase noise and flexible comb teeth spacing Adjustable, the effect of widening the adjustable range

Inactive Publication Date: 2020-01-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above technical problems and research results, the present invention provides a method and device for generating an optical frequency comb with a flexible and adjustable comb-tooth spacing, and at the same time solves the problem of poor flexibility in adjusting the comb-tooth spacing of conventional optical frequency combs and the inconsistency of the phase relationship between the comb teeth. Clear and Carrier Noise Large Technical Issues

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
  • Generating method and generating device for optical frequency comb with flexibly adjustable comb tooth spacing
  • Generating method and generating device for optical frequency comb with flexibly adjustable comb tooth spacing
  • Generating method and generating device for optical frequency comb with flexibly adjustable comb tooth spacing

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0047] The present invention uses a tunable semiconductor laser as the main laser, and the optical signal sent by the main laser first passes through the optical isolator, the purpose is to prevent the backward transmission light generated by various reasons in the optical path from adversely affecting the light source and the optical path system; The optical signal of the laser is amplified through the optical amplifier to ensure that the injection coefficient of the master-slave optical injection system can meet the experimental requirements; the amplified optical signal passes through the polarization controller to ensure that the optical signal output by the master laser is the same as that output by the slave laser. The optical signal has the best coherence; then through the adjustable optical attenuator, the injection power injected into the slave laser is changed; then the optical signal is input from the 1 port of the optical circulator to the slave laser connected to th...

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 generating method for an optical frequency comb with flexibly adjustable comb tooth spacing, and belongs to the technical field of microwave photonics. A master laser of a master-slave light injection structure emits a light signal to externally inject light disturbance into a slave laser, so that the slave laser is in a single-period oscillation state, and a light injection seed optical frequency comb is generated. Meanwhile, the slave laser is modulated by using a radio frequency signal of which the frequency is equal to integral multiples of a microwave oscillationfrequency corresponding to the single-period oscillation state, so that the performance of the light injection seed optical frequency comb is improved, and the light injection seed optical frequencycomb is enhanced into an optical frequency comb with flexibly adjustable comb tooth spacing. The invention also discloses a generating device for an optical frequency comb with flexibly adjustable comb tooth spacing. The generating device comprises a master laser, a polarization controller, an adjustable optical attenuator, an optical circulator, a slave laser and a radio frequency source.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics, and more precisely relates to a generation method and a generation device of an optical frequency comb with a flexible and adjustable comb tooth spacing. Background technique [0002] The essence of an optical frequency comb is an ultrashort optical pulse laser. In the frequency domain, its spectrum is represented by several comb lines with equal frequency intervals, which are shaped like a comb. In the field of optics, the optical frequency comb is like a ruler, which can realize the measurement of the optical frequency. The research on the optical frequency comb as an important research content won the Nobel Prize in Physics in 2005 (see [Wei Zhiyi. 2005 Nobel Physics Science Award and Optical Frequency Comb. Physics, 2006, 35(03); 213-217]). Optical frequency combs also have important applications in related fields such as precision ranging, microwave photonics arbitrary wave gene...

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): H01S5/065H01S5/06H01S5/04
CPCH01S5/041H01S5/0608H01S5/065H01S5/0651
Inventor 张雅丽葛明飞廖曙旭张尚剑刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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