Dual-wavelength tunable inner cavity tera-hertz parametric oscillator and using method thereof

Abstract

The invention relates to a laser and provides a dual-wavelength tunable inner cavity tera-hertz parametric oscillator and a using method thereof to realize the output of continuous tunable dual-wavelength high-power THz wave and the stable operation at room temperature. The invention adopts a technical proposal that: a pumplight resonant cavity consists of a planar holophote, a laser and an output mirror; the laser is a quasi-continuous semiconductor laser array side-pumped neodymium yttrium aluminum garnet Nd:YAG5 laser; a back pressure type electro-optical switch Q consisting of monopotassium phosphate KD<*> P crystal and a polaroid is arranged between the planar holophote,and the laser; a TPO resonant cavity consisting of a magnesium-doped lithium niobate MgO:LiNbO3 crystal and two cavascopes is arranged between the laser and the output mirror; and the optical axis of the TPO resonant cavity and the optical axis of the pumplight resonant cavity are non-colinear; and the side of themagnesium-doped lithium niobate MgO:LiNbO3 crystal and an array silicon prism are coupled to output the tera-hertz wave. The dual-wavelength tunable inner cavity tera-hertz parametric oscillator and the using method are mainly used for manufacturing the laser.

Description

Dual-wavelength tunable intracavity terahertz parametric oscillator and method of use thereof technical field The present invention relates to a laser, in particular to a dual-wavelength terahertz tuned output realized by using a terahertz parametric oscillator, that is, a dual-wavelength tunable inner-cavity terahertz parametric oscillator and a method for using the same. Background technique Terahertz (Terahertz, referred to as THz, 1THz=1012Hz) radiation source is the key core technology in the development of THz technology, it refers to the frequency from 100GHz to 10THz, the corresponding wavelength is from 3 mm to 30 microns, between millimeter wave and infrared light A fairly broad region of the electromagnetic spectrum between spectral ranges. Due to its special position in the electromagnetic spectrum, it has a series of special properties. In particular, wide-tuned THz coherent radiation sources have a wide range of application values ​​in the fields of national...

AI Technical Summary

Problems solved by technology

However, the end-pump structure limits the increase of pump power, and the output THz wave power is low, and can only achieve single-wavelength tuning output, and the tuning range is narrow

Images