Low threshold of a continuous-wave mode-locked and azimuthally polarized Nd:YVO4 laser with a semiconductor saturable absorber mirror

被引：2
|
作者：
Hong, Kun-Guei [1 ]
Hung, Bi-Jin [1 ]
Wei, Ming-Dar [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Photon, 1 Univ Rd, Tainan 701, Taiwan
来源：
JOURNAL OF OPTICS | 2016年 / 18卷 / 12期
关键词：
diode-pumped lasers; polarization; mode locking; spatial pattern formation; BEAMS; GENERATION; BIREFRINGENCE; CAVITY;
D O I：
10.1088/2040-8978/18/12/125603
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
On the basis of the birefringence of laser crystals, a continuous-wave mode-locked Nd:YVO4 laser with azimuthal polarization was fabricated using a semiconductor saturable absorber mirror. When compared to the method based on thermally induced birefringence, the threshold was sufficiently lower than that in previous studies with about the one-tenth ratio of threshold. The repetition rate and pulse width for the continuous-wave mode-locked pulse were 125 MHz and 77 ps, respectively, at a pump power of 11 W. The degree of polarization was 90.0% +/- 1.9%.
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页数：7
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