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

Dual-wavelength narrow-linewidth terahertz wave parametric oscillator

A dual-wavelength, narrow linewidth technology, applied in the field of terahertz wave optoelectronics, can solve the problems of poor mechanical stability, fine tuning of terahertz wave wavelength needs to be further improved, single frequency tuning method, etc. The wavelength tuning method is flexible and diverse, and the volume is small.

Active Publication Date: 2016-07-06
NORTHWEST UNIV(CN)
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This common flat-flat cavity structure terahertz wave parametric oscillator has a relatively simple frequency tuning method, and generally can only generate a bunch of narrow-band, continuously tunable terahertz waves.
When the wavelength tuning output is realized by rotating the platform on which the resonant cavity is placed, the mechanical stability of the device is also poor, and the fine tuning of the terahertz wave wavelength needs to be further improved

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
  • Dual-wavelength narrow-linewidth terahertz wave parametric oscillator
  • Dual-wavelength narrow-linewidth terahertz wave parametric oscillator
  • Dual-wavelength narrow-linewidth terahertz wave parametric oscillator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] see figure 1 , figure 1 It is a schematic diagram of the overall structure of the dual-wavelength, narrow-linewidth terahertz wave parametric oscillator of the present invention. It includes a resonant cavity, which is composed of a rectangular prism 5, a 45° total reflection mirror 6, a double blazed grating 7, a first plane total reflection mirror 8 and a second plane total reflection mirror 9; the resonance cavity is built with MgO:LiNbO 3 The crystal 3 has a silicon prism array device 4 placed on its surface; the pump light enters the resonant cavity and forms an angle of 1.5° with the cavity axis of the resonant cavity; the generated dual-wavelength continuously tunable terahertz wave 10 passes through the silicon prism array device The silicon prism array 4 emits.

[0024] The dual-wavelength, narrow-linewidth terahertz wave parametric oscillator given in this embodiment uses the fundamental frequency light (1064nm) output of the electro-optic Q-switched pulse N...

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a dual-wavelength narrow-linewidth terahertz wave parametric oscillator. The resonant cavity comprises a right angle prism, a 45-degree total reflective mirror, a dual-blazing-angle grating, a first planar total reflective mirror and a second planar total reflective mirror; an MgO:LiNbO<3> crystals are put in the resonant cavity, and a silicon prism array apparatus is placed on the surface of the resonant cavity; pump light incidents to the resonant cavity, and an included angle of 1.5 degrees is formed between the pump light and the resonant cavity; the dual-blazing-angle grating refers to the dual-blazing-angle grating with crossed periods; the -1 level diffraction efficiency corresponding to one blazing angle is the maximum while the -2 level diffraction efficiency corresponding to the other blazing angle is the maximum; and the two diffraction efficiencies are approximately equal. By separately rotating the 45-degree total reflective mirror, the dual-blazing-angle grating, the first planar total reflective mirror and the second planar total reflective mirror, any dual-wavelength terahertz wave tuning output can be realized, and the dual wavelengths are not affected by each other. The dual-wavelength narrow-linewidth terahertz wave parametric oscillator can be widely applied to the field of the terahertz photo-electronic technique, such as terahertz wave radars, fine spectral analysis, medical imaging, terahertz communication and the like.

Description

technical field [0001] The invention relates to the technical field of terahertz wave optoelectronics, in particular to a dual-wavelength, narrow-linewidth terahertz wave parametric oscillator. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency in the range of 0.1 to 10 THz, and their wave band is between 30 μm and 3 mm, which is in the transition region between millimeter waves and infrared waves, electronics and photonics. Due to the characteristics of high penetration, low energy, high coherence, and fingerprint characteristics, terahertz waves are currently widely used in basic research fields such as biology, physics, chemistry, astronomy, and medical science, as well as biomedical imaging and live detection. , communication radar, national security and anti-terrorism and other applied technology research fields. The development of a terahertz wave radiation source with excellent performance is one of the main key technologies...

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): H01S1/02G02F1/35
CPCG02F1/35H01S1/02
Inventor 孙博田方贾静白先鹏
Owner NORTHWEST UNIV(CN)
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