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A Ring Cavity Terahertz Wave Parametric Oscillator

A terahertz oscillator technology, applied in the field of ring cavity terahertz wave parametric oscillator, can solve the problems of low terahertz wave power and efficiency, and achieve the effects of flexible operation, simple tuning method, and enhanced optical parametric effect.

Inactive Publication Date: 2019-05-24
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a ring-cavity terahertz wave parametric oscillator to solve the problems of low power and low efficiency of the existing terahertz wave

Method used

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  • A Ring Cavity Terahertz Wave Parametric Oscillator
  • A Ring Cavity Terahertz Wave Parametric Oscillator

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] as attached figure 1 As shown, a ring cavity terahertz wave parametric oscillator includes a pump source 1, a first mirror 3, a second mirror 5, a third mirror 6, a fourth mirror 7, a first MgO:LiNbO3 Crystal 8, the second MgO:LiNbO 3 Crystal 9, the third MgO:LiNbO 3 Crystal 10, the fourth MgO:LiNbO 3 Crystal 13, fifth MgO:LiNbO 3 Crystal 14 and sixth MgO:LiNbO 3 Crystal 15;

[0031] The pump light 2 emitted by the pump source 1 is reflected by the first mirror 3 and then incident on the first MgO:LiNbO 3 Crystal 8, the third MgO:LiNbO 3 Crystal 10 and the second MgO:LiNbO 3 The crystal 9 produces Stokes light 4, the first terahertz wave 11 and the second terahertz wave 12 through the optical parametric effect; 3 Crystal 10, sixth MgO:LiNbO 3 The ring cavity formed by the total reflection surface of the crystal 15 oscillates, and the first ter...

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Abstract

The invention discloses a ring cavity terahertz wave parametric oscillator, comprising a pump source, a first reflector, a second reflector, a third reflector, a fourth reflector, a first MgO:LiNbO 3 Crystal, the second MgO:LiNbO 3 Crystal, the third MgO:LiNbO 3 Crystal, the fourth MgO:LiNbO 3 Crystal, fifth MgO:LiNbO 3 Crystal and sixth MgO:LiNbO 3 crystals. The four beams of terahertz waves generated by the optical parametric effect, of which two beams of terahertz waves can be used as seed light to enhance the optical parametric effect, and then can effectively amplify the other two beams of terahertz waves; Stokes light is resonantly amplified in the ring cavity, and can be repeated Use to effectively improve optical conversion efficiency; terahertz waves are perpendicular to MgO:LiNbO 3 The output from the crystal does not require any coupling output device, which effectively reduces the output loss of the terahertz wave; by changing the angle between the pump light and the Stokes light, a frequency-tuned terahertz wave can be obtained. The tuning method is simple and the operation is flexible.

Description

technical field [0001] The invention belongs to the technical field of terahertz waves, and in particular relates to a ring cavity terahertz wave parametric oscillator. Background technique [0002] Terahertz wave (THz), refers to the frequency of 0.1-10THz (1THz=10 12 Hz) range, located between microwave and infrared radiation, coincides with millimeter waves at long wavelengths, and coincides with infrared waves at short wavelengths. It is the transition area between electronics and photonics, and macroscopic theory to microscopic theory. Terahertz waves between the microwave and infrared bands have many special properties: [0003] (1) A large number of organic molecules, semiconductor sub-bands and micro-bands, rotational and vibrational transition energies are all in the terahertz wave range. The spectral resolution characteristics of terahertz waves make terahertz wave detection technology, especially terahertz wave spectral imaging technology, In addition to disting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/02
CPCH01S1/02
Inventor 李忠洋王思磊王孟涛
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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