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2. 发明申请

WO2005027284A2 PULSED CO2 LASER INCLUDING AN OPTICAL DAMAGE RESISTANT ELECTRO-OPTICAL SWITCHING ARRANGEMENT 审中-公开
标题翻译：脉冲二氧化碳激光器，包括光学损伤电光开关装置
公开(公告)号：WO2005027284A2
公开(公告)日：2005-03-24
申请号：PCT/US2004007108
申请日：2004-03-09
申请人： COHERENT INC
发明人： SEGUIN VERNON , NEWMAN LEON , KENNEDY JOHN , FONTANELLA JOEL , DEMARIA ANTHONY J
IPC分类号： H01S3/03 , H01S3/115 , H01S3/223 , H01S5/00
CPC分类号： H01S3/2232 , H01S3/0315 , H01S3/09702 , H01S3/1075 , H01S3/1103 , H01S3/115
摘要： A laser in includes an RF energized gain medium is located in a laser resonator. The gain medium generates plane polarized radiation plane polarized in a first polarization orientation. An electro-optical switch is located in the resonator. When the switch is activated the polarization plane of the laser radiation is rotated to a second orientation after making a forward and a reverse pass through the optical switch. When the switch is deactivated, the polarization orientation of the forward and reverse transmitted laser radiation remains about the same. A polarization selective device is located in the resonator between the electro-optical switch and the gain medium. The polarization selective device is arranged to permit circulation in the resonator of laser radiation in the first polarization orientation, and to restrict circulation of laser radiation in the second polarization orientation. The Gain medium is energized and the switch activated to allow energy to build in the gain medium. The switch is then deactivated to laser radiation to circulate in the resonator and deliver a laser pulse. A method of activating the switch by a sequence of DC pulses is disclosed.
摘要翻译：包括RF激励增益介质的激光器位于激光谐振器中。增益介质产生以第一极化取向偏振的平面偏振辐射平面。电光开关位于谐振器中。当开关被激活时，激光辐射的偏振平面在通过光学开关的正向和反向通过之后被旋转到第二取向。当开关被禁用时，正向和反向传输的激光辐射的偏振方向保持大致相同。偏振选择装置位于电光开关和增益介质之间的谐振器中。偏振选择装置被布置成允许在第一极化取向中的激光辐射的谐振器中循环，并且限制第二偏振取向中的激光辐射的循环。增益介质通电，并且开关被激活以允许在增益介质中建立能量。然后将开关禁用激光辐射在谐振器中循环并传递激光脉冲。公开了通过一系列DC脉冲来激活开关的方法。

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