Frequency-selective Q-switched repetitively pulsed slab RF-discharge carbon monoxide laser

被引：4

作者：

Chebotarev, I. A. ^{[1
]}

Ionin, A. A. ^{[1
]}

Kinyaevskiy, I. O. ^{[1
]}

Klimachev, Yu M. ^{[1
]}

Kozlov, A. Yu ^{[1
]}

Rulev, O. A. ^{[1
]}

Sinitsyn, D., V ^{[1
]}

机构：

[1] Russian Acad Sci, PN Lebedev Phys Inst, 53 Leninskiy Pr, Moscow 119991, Russia

来源：

OPTICS AND LASER TECHNOLOGY | 2020年 / 131卷

基金：

俄罗斯科学基金会;

关键词：

Slab RF discharge; CO laser; mid-IR laser; Q-switch; Frequency selection; MU-M; BAGA2GESE6; CONVERSION;

D O I：

10.1016/j.optlastec.2020.106431

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Q-switched cryogenically cooled slab RF discharge CO laser operating in multi-line mode, single-line mode with a diffraction grating, and also with frequency selection by special spectral filters situated both outside and inside the laser cavity was experimentally studied. Characteristics of CO lasing on individual ro-vibrational spectral lines produced by this laser with various cavities under the same active medium and pump parameters were compared. Application of output couplers with a relatively narrow spectral band of high transmittance compared to the non-selective CO laser range of operation, but with high reflection in the rest of the range, was effective for obtaining narrow-band multiline lasing. For selection of the long-wave part of Q-switched CO laser spectrum, which was needed for frequency conversion into the long-wave mid-IR when mixing with CO2 laser emission, application of a broadband spectral filter with a very low reflection coefficient in the spectral range where lasing was necessary to be suppressed (sort of a step function) proved to be efficient being installed outside the laser cavity.

引用

页数：8