利用体布拉格光栅在二极管泵浦的Nd:YVO4激光器中产生窄线宽连续橙光。

Narrow-line, cw orange light generation in a diode-pumped Nd:YVO4 laser using volume Bragg gratings.

作者信息

Chen Y L, Chen W W, Du C E, Chang W K, Wang J L, Chung T Y, Chen Y H

机构信息

Department of Optics and Photonics, National Central University, Jhongli 320, Taiwan.

出版信息

Opt Express. 2009 Dec 7;17(25):22578-85. doi: 10.1364/OE.17.022578.

DOI:10.1364/OE.17.022578

PMID:20052183

Abstract

We report on the demonstration of a narrow-line, cw orange 593-nm laser achieved via intracavity sum-frequency generation (SFG) of a diode-pumped dual-wavelength (1064 and 1342 nm) Nd:YVO(4) laser using two volume Bragg grating (VBG) reflectors. At diode pump power of up to 3.6 W, the 593-nm intracavity SFG laser radiates at the single longitudinal mode of spectral linewidth as narrow as approximately 15 MHz. More than 23-mW single-longitudinal-mode or 40-mW, <8.5-GHz (10-pm) linewidth (at 4.2-W diode pump power) 593-nm orange lights can be obtained from this compact laser system. Spectral tuning of the orange light was performed via the temperature tuning of the two VBGs in this system, achieving an effective tuning rate of ~5 pm/degrees C.

摘要

我们报道了一种窄线宽连续波橙色593纳米激光器的演示，该激光器通过使用两个体布拉格光栅（VBG）反射器对二极管泵浦双波长（1064和1342纳米）Nd:YVO₄激光器进行腔内和频产生（SFG）实现。在高达3.6瓦的二极管泵浦功率下，593纳米腔内SFG激光器以谱线宽度窄至约15兆赫兹的单纵模辐射。从这个紧凑的激光系统中可以获得超过23毫瓦的单纵模或40毫瓦、<8.5吉赫兹（10皮米）线宽（在4.2瓦二极管泵浦功率下）的593纳米橙色光。通过该系统中两个VBG的温度调谐对橙色光进行光谱调谐，实现了约5皮米/摄氏度的有效调谐速率。