Tunable Optical Parametric Oscillator Based on MgO:PPLN and HgGa2S4 Crystals Pumped by an Nd:YAG Laser with Increased Energy Characteristics

被引：0

作者：

Erushin, E. Yu. ^{[1
,2
]}

Yakovin, M. D. ^{[1
,3
]}

Latkin, N. I. ^{[3
]}

Podzyvalov, S. N. ^{[4
]}

Kostyukova, N. Yu. ^{[1
,2
]}

Boyko, A. A. ^{[1
,2
]}

机构：

[1] Novosibirsk State Univ, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Inst Laser Phys, Siberian Branch, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Inst Automat & Electrometry, Siberian Branch, Novosibirsk 630090, Russia

[4] Natl Res Tomsk State Univ, Tomsk 634050, Russia

来源：

BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE | 2024年 / 51卷 / SUPPL 1期

基金：

俄罗斯科学基金会;

关键词：

optical parametric oscillator; nonlinear crystal; pulsed pump laser; laser photoacoustic spectroscopy; MU-M; DEPOLARIZATION; ND;

D O I：

10.3103/S1068335624600190

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the development of a combined optical parametric oscillator based on a fan-out MgO:PPLN crystal and a HgGa2S4 crystal, providing smooth wavelength tuning in the spectral range from 2.5 to 10.8 mu m. A transversely pumped Nd:YAG laser with a pulse energy of similar to 4 mJ and a spatial beam distribution described by a second-order Gaussian function along the x axis and a fourth-order Gaussian function along the y axis is used as a pump source. A maximum achievable radiation energy of the optical parametric oscillator is at a level of 360 mu J for a wavelength of 3.3 mu m, 130 mu J for a wavelength of 4.73 mu m, and 110 mu J for a wavelength of 7.40 mu m. The developed radiation source is used to record absorption spectra of gas mixtures of methane, propane and nitrogen dioxide.

引用

页码：S39 / S50

页数：12

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