基于内腔的调Q锁模光参量振荡器的研究 |
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引用本文: | 王静,梁健,宋朋,张海鹍,周城. 基于内腔的调Q锁模光参量振荡器的研究[J]. 红外与激光工程, 2016, 45(11): 1105008-1105008(4). DOI: 10.3788/IRLA201645.1105008 |
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作者姓名: | 王静 梁健 宋朋 张海鹍 周城 |
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作者单位: | 1.济南大学 物理科学与技术学院,山东 济南 250022; |
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基金项目: | 国家自然科学基金青年基金(61308057);山东省优秀中青年科学家科研奖励基金(BS2012DX003);济南大学科研基金(XKY1225) |
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摘 要: | 为了实现内腔型光参量振荡器(OPO)的调Q锁模脉冲输出,通过设计并匹配OPO谐振腔和基频激光腔的腔长,满足了同步泵浦条件,最终在实验上得到了信号光的调Q锁模输出;在实验中,采用氙灯泵浦Nd:YAG作为基频激光,以KTP晶体为非线性转换介质,采用电光开关作为调Q手段,测量了OPO的近红外信号光的输出波形、输出能量、光谱构成等输出特性。在泵浦能量12.8 J、调制频率20 kHz时,得到了锁模深度为100%的信号光输出,并发现信号光锁模脉冲重复率依赖于基频激光;得到了调Q锁模信号光输出能量随泵浦能量、电光调制频率的变化关系。
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关 键 词: | 调Q锁模 内腔光参量振荡 同步泵浦 |
收稿时间: | 2016-03-12 |
Q-switched mod-locking optical parametric oscillator with intr-cavity |
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Affiliation: | 1.School of Physics and Technology,Jinan University,Jinan 250022,China;2.Network and Information Management Center,Shandong University,Weihai 264209,China |
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Abstract: | By matching the length of the OPO cavity and the fundamental laser cavity, the Q-switched mod-locking intr-cavity Optical Parametric Oscillator (OPO) was realized. The design of fundamental laser and OPO cavity proved synchronously pumping and the Q-switched mod-locking signal pulse was experimentally obtained. The signal profile, output energy and spectroscopy were also measured in experiment. It is concluded that the repetition of signal mod-locking pulse depends on the fundamental and the depth of mode lock can reach 100% with 12.8 J pump energy and 20 kHz electr-optical (EO) repetition. The output energy of signal light depends on the pump energy and EO repetition. |
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