A 3-D terahertz parametric oscillator

A technology of terahertz oscillators, applied in the field of three-dimensional terahertz wave parametric oscillators, can solve the problems of low efficiency of terahertz radiation sources, achieve the effects of increasing interaction volume, increasing optical conversion efficiency, and reducing output loss

Inactive Publication Date: 2019-01-08
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a three-dimensional terahertz wave parametric oscillator to solve the problem of low efficiency of existing terahertz radiation sources

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
  • A 3-D terahertz parametric oscillator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, a three-dimensional terahertz wave parametric oscillator includes a pump source, a GaAs crystal 7, and reflectors and parabolic mirrors arranged around the GaAs crystal 7; the pump source is provided by KD * P crystal 2, polarizer 3, Nd:YAG laser pump module 4, first reflector 1, second reflector 8, third reflector 9, fourth reflector 10, fifth reflector 11 and sixth reflector Composed of mirrors 12, the pumping light 5 sent by the pumping source is reflected by the first reflector 1, the second reflector 8, the third reflector 9, the fourth reflector 10, the fifth reflector 11 and the sixth reflector 12 Resonant amplification in the resonant cavity formed;

[0026] The pump source used in this embodiment is a Nd:YAG pulsed laser with a wavelength of 1064 nm, a pulse width of 15 ns, a repetition rate of 5 Hz, a beam diamete...

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 three-dimensional terahertz wave parametric oscillator, comprising a pump source, a GaAs crystal, a mirror and a paraboloid mirror arranged around the GaAs crystal; The pumpsource is made up of KD*P crystal, Polarizer, Nd: A YAG laser pumping module is composed of a first mirror, a second mirror, a third mirror, a fourth mirror, a fifth mirror and a sixth mirror. The pumping light emitted from the pumping source is resonantly amplified in a resonant cavity composed of a first mirror, a second mirror, a third mirror, a fourth mirror, a fifth mirror and a sixth mirror.In the process of optical parameters, Stokes light and pump light in the cavity can be recycled, and the efficiency of pump light can be improved effectively. Six terahertz waves can be generated byone pump beam, and the optical conversion efficiency is effectively increased.

Description

technical field [0001] The invention belongs to the application field of terahertz wave technology, and in particular relates to a three-dimensional terahertz wave parametric oscillator. Background technique [0002] Terahertz (THz) wave refers to the frequency between 0.1-10THz (1THz=10 12 Hz) range, between millimeter waves and infrared waves. Terahertz waves have broad application prospects in spectral detection, imaging, remote sensing, communications, biomedicine, and military affairs. So far, there is still a lack of terahertz radiation sources with high power, high efficiency, coherence, tunability, miniaturization, and room temperature operation. Terahertz parametric oscillators can generate high-power, tunable, coherent, room-temperature-operating terahertz radiation. But the existing problem is that the optical conversion efficiency of the terahertz wave parametric oscillator is low. Contents of the invention [0003] The purpose of the present invention is t...

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
CPCH01S1/02
Inventor 李忠洋张云鹏张红涛徐娟谭联李永军袁斌袁胜陈建明
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap