Eye-Safe Extracavity Raman Laser: a Passive Way of Eliminating Optical Feedback with Double-Pass Pumping

被引：0

作者：

Dashkevich, V. I. ^{[1
]}

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

Orlovich, V. A. ^{[1
]}

Shkadarevich, A. P. ^{[2
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Inst Phys, 68 Nezavisimost Ave, Minsk 220072, BELARUS

[2] BelOMO, STC LEMT, Minsk, BELARUS

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2017年 / 83卷 / 06期

关键词：

stimulated Raman scattering; extracavity Raman laser; double-pass pumping; elimination of optical feedback; eye-safe radiation; SCATTERING; CONVERSION; RADIATION; GENERATION;

D O I：

10.1007/s10812-017-0388-4

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A passive way of eliminating optical feedback between a pump laser and an extracavity two-pass pumped Raman laser in a compact arrangement was demonstrated. Feedback was suppressed by arranging the circuit elements in a configuration where the pump-laser 100% mirror and the Raman-laser output mirror formed an unstable cavity characterized by a substantially higher threshold for generating the fundamental radiation as compared with the stable pump-laser cavity. The method was demonstrated using an eye-safe KGd(WO4)(2) Raman laser pumped by a pulsed KGd(WO4)(2):Nd laser with the working transition as an example. The Raman laser emitted pulses of energy similar to 11.5 mJ at an electrical pump energy of similar to 10 J, corresponding to a conversion efficiency of similar to 31%. The Stokes pulse width (similar to 17 ns) was comparable to the pump pulse width (similar to 20 ns) owing to the extracavity location of the Raman laser.

引用

页码：945 / 950

页数：6

共 5 条

[1] Eye-Safe Extracavity Raman Laser: a Passive Way of Eliminating Optical Feedback with Double-Pass Pumping
V. I. Dashkevich
A. A. Rusak
V. A. Orlovich
A. P. Shkadarevich
Journal of Applied Spectroscopy, 2017, 83 : 945 - 950
[2] Double-pass pumped extracavity optical parametric oscillator with passive optical feedback suppression
Alyamani, A.
Algahtani, M.
Rusak, A. A.
Orlovich, V. A.
Dashkevich, V. I.
El-Desouki, M.
LASER PHYSICS, 2016, 26 (04)
[3] Eye-safe Raman laser at 1532 nm with BaWO4 crystal under direct 880 nm pumping
Chen, X. H.
Li, P.
Zhang, X. Y.
Wang, Q. P.
Liu, Z. J.
Cong, Z. H.
Li, L.
Zhang, H. J.
LASER PHYSICS, 2012, 22 (01) : 60 - 63
[4] Dual-wavelength eye-safe Nd:GYSGG/YVO4 intracavity Raman laser under in-band pumping
Jiang, P. B.
Sheng, Q.
Ding, X.
Sun, B.
Liu, J.
Zhao, C.
Zhang, G. Z.
Yu, X. Y.
Li, B.
Wu, L.
Yao, J. Q.
OPTICS COMMUNICATIONS, 2017, 383 : 6 - 10
[5] Highly efficient double-ended diffusion-bonded Nd:YVO4 1525-nm eye-safe Raman laser under direct 880-nm pumping
Chen, X. H.
Zhang, X. Y.
Wang, Q. P.
Li, P.
Liu, Z. J.
Cong, Z. H.
Li, L.
Zhang, H. J.
APPLIED PHYSICS B-LASERS AND OPTICS, 2012, 106 (03): : 653 - 656

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