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A Terahertz Wave Enhanced Intracavity Terahertz Wave Parametric Oscillator

A technology of terahertz and wave parameters, applied in the field of terahertz waves, can solve the problems of low power and low efficiency of terahertz waves, and achieve the effect of improving utilization efficiency

Inactive Publication Date: 2018-10-30
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a terahertz wave enhanced intracavity 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 Terahertz Wave Enhanced Intracavity Terahertz Wave Parametric Oscillator
  • A Terahertz Wave Enhanced Intracavity Terahertz Wave Parametric Oscillator

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the drawings.

[0029] Such as figure 1 As shown, a terahertz wave enhanced intracavity terahertz wave parametric oscillator includes a pump source and a first MgO:LiNbO 3 Crystal 6, second MgO: LiNbO 3 Crystal 7, third MgO: LiNbO 3 Crystal 8, third reflecting mirror 10, fourth reflecting mirror 11 and fifth reflecting mirror 14;

[0030] The pump source is composed of the first mirror 1, KD * P crystal 2, polarizer 3, Nd: YAG laser pump module 4 and second mirror 9. The pump light 5 emitted by the pump source is in the resonant cavity formed by the first mirror 1 and the second mirror 9 Internal resonance amplification;

[0031] The pump light 5 oscillating back and forth between the first mirror 1 and the second mirror 9 enters the first MgO:LiNbO sequentially 3 Crystal 6, third MgO: LiNbO 3 Crystal 8 and second MgO: LiNbO 3 The crystal 7 generates Stokes light 15, the first terahertz wave 12...

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Abstract

The invention discloses a terahertz wave-enhanced intracavity terahertz wave parametric oscillator, including a pump source, a first MgO:LiNbO3 crystal, a second MgO:LiNbO3 crystal, a third MgO:LiNbO3 crystal, and a third reflector , the fourth reflector and the fifth reflector. The present invention produces two beams of terahertz waves through the optical parametric effect, wherein one beam of terahertz waves is used as a seed light to enhance the optical parametric effect, and then the other beam of terahertz waves can be effectively amplified. In the optical parametric process, the Stokes light and pump light in the cavity can be recycled to effectively improve the utilization efficiency of the pump light. The terahertz wave is emitted perpendicular to the MgO:LiNbO3 crystal, without 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, frequency-tuned terahertz waves 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 specifically relates to a terahertz wave enhanced intracavity terahertz wave parametric oscillator. Background technique [0002] Terahertz wave (THz) refers to the frequency of 0.1-10THz (1THz=10 12 The electromagnetic wave in the Hz) range is 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 region from electronics and photonics, macro theory to micro theory. Terahertz waves between the microwave band and the infrared band have many special properties: [0003] (1) A large number of organic molecules, semiconductor subbands and microstrips, rotation and vibration transition energies are all in the range of terahertz waves. The spectral resolution characteristics of terahertz waves make terahertz wave detection technology, especially terahertz wave spectral imagi...

Claims

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Application Information

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