锁模激光泵浦的内腔光参量振荡器的中红外输出特性  

Mid-infrared output characteristic from a mode-locking laser pumping intra-cavity optical parametric oscillator

作　　者：宋朋[1] 王静[1] 张海鹍[1] 周城[1] 刘仕鹏[1] 吕峰[1] 

机构地区：[1]济南大学物理科学与技术学院,山东济南250022

出　　处：《红外与激光工程》2016年第A02期1-4,共4页Infrared and Laser Engineering

基　　金：国家自然科学基金(61308057);山东省优秀中青年科学家科研奖励基金(BS2012DX003;BS2013DX024);济南大学科研基金(XKY1225)

摘　　要：在实验上实现了连续(CW)锁模激光泵浦的内腔光学参量振荡器(OPO)的运转,并得到中红外闲频光的输出。实验中采用的腔型、腔镜位置和腔长等参数是在考虑稳定腔条件的基础上通过ABCD矩阵计算确定,同时匹配OPO腔和基频激光谐振腔的腔长来满足同步泵浦条件。首先测量了没有OPO振荡情况下的半导体饱和吸收镜(SESAM)锁模激光的输出波形,并找到稳定连续锁模运转的阈值;其次测量了内腔OPO的闲频光、信号光和基频光的输出功率、输出波形、重复频率及脉冲宽度等参数,并通过测量信号光和基频光的光谱来确定中红外闲频光的输出中心波长在3.3μm。The continuous-wave（CW） mode-locking laser pumping intra-cavity optical parametric oscillator（OPO） was realized with experiment, output of mid-infrared idle light was gotten. The cavity shape, position of cavity mirror, cavity length were determined by ABCD matrix considering stable cavity.By matching the length of the OPO cavity and the fundamental frequency laser cavity to meet pumping condition synchronously. Firstly, the output profile of SΕSAM mode-locking laser was measured without OPO oscillating, the threshold of stable continuous-wave mode-locking running was found. Secondly,output power, output waveform, repetition frequency, and pulse width of the idle frequency, signal and fundamental frequency light of intra-cavity OPO were also measured. It is concluded that the central wavelength of the idle frequency light is about 3.3 μm through measuring spectrum of signal light and fundamental frequency light.

关 键 词：连续锁模 内腔光参量振荡 同步泵浦 中红外 

分 类 号：TN243[电子电信—物理电子学]