Self-sustaining azimuthal polarization in a passively Q-switched Nd:GdVO4 laser with a Cr4+:YAG saturable absorber

被引：8

作者：

Chang, Ken-Chia ^{[1
]}

Li, Dong-Lin ^{[1
]}

Wei, Ming-Dar ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Photon, Tainan 701, Taiwan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 02期

关键词：

CERAMIC MICROCHIP LASER; BEAMS; BIREFRINGENCE; GENERATION; CRYSTAL; AXICON; OUTPUT;

D O I：

10.1364/JOSAB.31.000382

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An azimuthally polarized beam was generated in passively Q-switched Nd:GdVO4 lasers with a Cr4+:YAG saturable absorber. Based on the birefringence of the laser crystal inducing the different equivalent lengths for the ordinary and extraordinary rays, stable ordinary ray lasing can be achieved when the cavity configuration is operated around the edge of a stable cavity region. Because the laser is directly obtained from a general cavity without adding an intracavity element, the azimuthally polarized beam is the intrinsic lasing mode of the passively Q-switched laser system. The degree of polarization can be controlled up to 97.9% +/- 0.7%, and the pulse width, repetition frequency, and peak power were 74.8 ns, 17.0 kHz, and 850 W at the pump power of 6.1 W, respectively. (C) 2014 Optical Society of America

引用

页码：382 / 386

页数：5

共 25 条

[1] Radially polarized ring and arc beams of a neodymium laser with an intra-cavity axicon [J].

Bisson, JF ;

Li, J ;

Ueda, K ;

Senatsky, Y .

OPTICS EXPRESS, 2006, 14 (08) :3304-3311

[2] Generation of azimuthally and radially polarized off-axis beams with an intracavity large-apex-angle axicon [J].

Chang, Ken-Chia ;

Lin, Tyson ;

Wei, Ming-Dar .

OPTICS EXPRESS, 2013, 21 (13) :16035-16042

[3] Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG laser [J].

Chen, YF ;

Tsai, SW .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 2001, 37 (04) :580-586

[4] OPTIMIZATION OF PASSIVELY Q-SWITCHED LASERS [J].

DEGNAN, JJ .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1995, 31 (11) :1890-1901

[5] Radially polarized mode-locked Nd:YAG laser [J].

Enderli, Florian ;

Feurer, Thomas .

OPTICS LETTERS, 2009, 34 (13) :2030-2032

[6] Laser-driven acceleration with Bessel beams [J].

Hafizi, B ;

Esarey, E ;

Sprangle, P .

PHYSICAL REVIEW E, 1997, 55 (03) :3539-3545

[7] Dynamical behavior and phase locking in a passively Q-switched Nd:YVO4 laser with pump modulation [J].

Hong, Kun-Guei ;

Wei, Ming-Dar .

JOURNAL OF OPTICS, 2013, 15 (08)

[8] Passively mode-locked radially polarized laser based on ceramic Nd:YAG rod [J].

Huang Jianhong ;

Deng Jing ;

Cao Yongge ;

Weng Wen ;

Zheng Hui ;

Li Jinhui ;

Shi Fei ;

Ge Yan ;

Dai Shutao ;

Lin Wenxiong .

OPTICS EXPRESS, 2011, 19 (03) :2120-2125

[9] Selective oscillation of radially and azimuthally polarized laser beam induced by thermal birefringence and lensing [J].

Ito, Akihiko ;

Kozawa, Yuichi ;

Sato, Shunichi .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2009, 26 (04) :708-712

[10] Generation of a radially polarized laser beam by use of a conical Brewster prism [J].

Kozawa, Y ;

Sato, S .

OPTICS LETTERS, 2005, 30 (22) :3063-3065

← 1 2 3 →