双腔双频固体激光器正交解调Pound-Drever-Hall稳频方法及实验研究
【文章页数】:127 页
【学位级别】:博士
【部分图文】:
图2-1双腔双频Nd:YAG激光器组成??Fig.2_l?Two-cavity?dual-frequency?Nd:YAG?laser??
—直线腔和直角腔。两腔由各自独立的选模元件基于双折射滤光片选模原理选出??具有不同序数的纵模。选模元件由方解石晶片(在l〇64nm处的双折射率约为0.16)组成??的输出耦合镜(BOC)与PBSi构成。双腔双频Nd:YAG激光器系统组成如图2-1所示。??Nd:YAG?B〇Cj?....
图2-2双频激光产生原理
激光的频率和频差调谐。??2.1.2双频激光产生原理??由图2-1可知,腔内PBS的自然分光作用将激光谐振腔分成两个互相垂直的双腔,??双腔共用激光增益介质Nd:YAG。双频激光同时振荡原理如图2-2所示。??个?g〇00?—??/?^?V〇sc??⑷???I?.??V〇?V??....
图2-4激光透过率随格兰棱镜转角变化??Fig.2-4?Dependence?of?transmission?of?laser?on?the?rotation?angle?of?Gian?prism??
,.」:一i?■,,,丨??CHI?1.00V?CH2?5.00V?2.000ms?Delay:?1?980000ms??图2-5双频激光同时振荡模谱??Fig.2-5?Mode?spectrum?of?dual-frequency?simultaneous?oscillatio....
图2-5双频激光同时振荡模谱??Fig.2-5?Mode?spectrum?of?dual-frequency?simultaneous?oscillation??
0?45?80?135?180?225?270?315?360???兰擔纖香爾度/D.EG??图2-4激光透过率随格兰棱镜转角变化??Fig.2-4?Dependence?of?transmission?of?laser?on?the?rotation?angle?of?Gian....
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