摘要
实验研究了Nd…GdVO_4和Nd…YVO_4晶体发射截面谱的温度特性,并根据发射截面谱与激光波长的对应关系,进一步研究了温度对Nd…GdVO_4和Nd…YVO_4双频微片激光器输出光谱的影响。实验结果表明,在所研究的温度范围内,随着温度的升高,Nd…GdVO_4和Nd…YVO_4晶体发射截面谱的中心波长发生红移、峰值下降,且均与温度呈准线性关系;对应的双频微片激光器波长也随温度升高呈现线性红移,但双频频差保持不变;在晶体发射截面谱和激光波长的共同红移作用下,双频激光分量的功率均衡度发生变化。
The temperature characteristics of emission-cross section spectra of Nd：GdVO4 and Nd： YVO4 crystals are studied experimentally. According to the relationship between the emission cross section spectra and the laser wavelength, the influence of temperature on the output spectra of Nd.＂ GdVO4 and Nd： YVO4 dual-frequency microehip laser wavelengths is further investigated. The experimental results show that, in the studied temperature range, the central wavelength of the emission-cross section spectra of Nd.＂ GdVO4 and Nd： YVO4 crystals shows red- shift and the peak decline. Both of them are linearly related to the temperature. The wavelength of the corresponding dual-frequency microchip laser also shows a linear red shift with temperature increasing, but the double frequency difference remains unchanged. The power balance of the dual-frequency laser changes with the common red-shift of the crystal emission cross section spectrum and the laser wavelength.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2017年第11期15-21,共7页
Chinese Journal of Lasers
基金
国家自然科学青年基金(61705055)
浙江省公益技术研究工业项目(2016C31068)
关键词
激光器
功率均衡
温控
热致波长漂移
发射截面谱
激光光谱
lasers
intensity balance
temperature control
thermal induced wavelength shift
emission cross section spectrum
laser spectrum
