公开(公告)号：EP1442507A2

公开(公告)日：2004-08-04

申请号：EP02798781.7

申请日：2002-09-20

申请人： Karpushko, Fedor V.

发明人： Karpushko, Fedor V.

IPC分类号： H01S1/00

CPC分类号： H01S3/109 ,  H01S3/0811

摘要： A laser device with frequency conversion, the device comprising a complex optical cavity comprising two cavity parts with two different levels of circulating intracavity power wherein there is placed at least one non-linear crystal (30) is placed within the cavity part of higher circulating power and an active medium (21) in the cavity part of lower circulating power, the power enhancement achieved in two steps and the total enhancement being the product of the enhancement factors in each step, providing additional freedom in design allowing both the condition for high enhancement of the interacting laser power inside the intracavity non-linear crystal and the condition for maximum power output from the laser to be satisfied simultaneously and wher in said complex optical cavity the first cavity part provides the initial step of power enhancement and comprises at least a laser cavity back mirror (20), highly reflective about a laser radiation fundamental frequency &omega, and an active (gain) medium.

公开(公告)号：EP2424051A1

公开(公告)日：2012-02-29

申请号：EP10173991.0

申请日：2010-08-25

申请人： Karpushko, Fedor V.

发明人： Karpushko, Fedor V.

IPC分类号： H01S3/109 ,  H01S3/08 ,  H01S3/081 ,  H01S3/082 ,  H01S3/105 ,  H01S3/106 ,  H01S3/139

CPC分类号： H01S3/109 ,  H01S3/08009 ,  H01S3/08036 ,  H01S3/0812 ,  H01S3/0826 ,  H01S3/105 ,  H01S3/1062 ,  H01S3/139

摘要： This invention provides a laser device for intra-cavity frequency conversion, in particular, for the second harmonic generation (SHG), the device comprising a laser cavity, formed by the first (10) and the second (100) laser cavity end reflectors wherein the said laser cavity end reflectors are highly reflective for the radiation about the laser fundamental frequency and as such provide for a predetermined level of circulating inside the cavity fundamental frequency power; an active medium (20) provided within the said laser cavity; at least one non-linear crystal (40), in particular, for the second harmonic generation provided within the same laser cavity; tuning means (202) adapted for tuning at least one of laser cavity end reflectors; wherein at least one of the laser cavity end reflectors (100) comprises an interferometric layout providing spectrally selective reflection for the radiation about the laser fundamental frequency with the value of reflectivity nearly to 100% within a spectral range close to the free spectrum range (FSR) of the laser cavity and with a sufficiently lower reflectivity outside the above spectral range such that the laser cavity restricts the spectrum of the laser radiation to a single longitudinal mode.

摘要翻译： 本发明提供了一种用于腔内频率转换的激光装置，特别是用于二次谐波产生（SHG）的激光装置，该装置包括由第一激光腔和第二激光腔端反射器形成的激光腔，其中， 所述激光腔端反射器对于关于激光基频的辐射是高度反射的，并且因此提供在腔体基频功率内的预定水平的循环; 设置在所述激光腔内的活性介质（20） 至少一个非线性晶体（40），特别是用于在同一激光腔内提供的二次谐波发生; 调谐装置（202），适于调谐激光腔端反射器中的至少一个; 其中所述激光腔端反射器（100）中的至少一个包括干涉仪布局，其提供关于激光基频的辐射的光谱选择性反射，其中反射率值在接近自由光谱范围（FSR）的光谱范围内几乎达到100％ ），并且在上述光谱范围之外具有足够低的反射率，使得激光腔将激光辐射的光谱限制到单个纵向模式。

公开(公告)号：EP1442507B1

公开(公告)日：2005-08-10

申请号：EP02798781.7

申请日：2002-09-20

申请人： Karpushko, Fedor V.

发明人： Karpushko, Fedor V.

IPC分类号： H01S3/081 ,  H01S3/082

CPC分类号： H01S3/109 ,  H01S3/0811

摘要： A laser device with frequency conversion, the device comprising a complex optical cavity comprising two cavity parts with two different levels of circulating intracavity power wherein there is placed at least one non-linear crystal (30) is placed within the cavity part of higher circulating power and an active medium (21) in the cavity part of lower circulating power, the power enhancement achieved in two steps and the total enhancement being the product of the enhancement factors in each step, providing additional freedom in design allowing both the condition for high enhancement of the interacting laser power inside the intracavity non-linear crystal and the condition for maximum power output from the laser to be satisfied simultaneously and wher in said complex optical cavity the first cavity part provides the initial step of power enhancement and comprises at least a laser cavity back mirror (20), highly reflective about a laser radiation fundamental frequency &omega, and an active (gain) medium.

公开(公告)号：EP2466372A1

公开(公告)日：2012-06-20

申请号：EP10195374.3

申请日：2010-12-16

申请人： Karpushko, Fedor V.

发明人： Karpushko, Fedor V.

IPC分类号： G02F1/35

CPC分类号： G02F1/3501 ,  G02F1/3534 ,  G02F1/37 ,  G02F2001/3503 ,  G02F2001/3542

摘要： The invention provides a laser system comprising a nonlinear optical cavity (200) comprising cavity mirrors (210,220) positioned with respect to each other as to form a cavity configuration defining stable cavity eigenmodes at fundamental, incident upon, and combined, generated within the cavity, frequencies, said eigenmodes being spatially overlapped inside the nonlinear crystal (230), which is incorporated within the cavity and phase-matched appropriately for frequency conversion of circulating inside the cavity laser radiation; wherein for tuning the cavity eigenmodes and resonating the cavity simultaneously at more than one frequency, a dispersive plate (240) having temperature dependent spectral dispersion is provided inside the nonlinear optical cavity and temperature controlling means (242,245) is provided to regulate the temperature of the dispersive plate.

摘要翻译： 本发明提供一种激光系统，包括相对于海誓山盟定位为以形成腔体的非线性光学腔体（200），包括谐振镜（210,220）的配置限定于在基本稳定空腔本征模式，事件，和组合，在空腔内产生 的频率，所述本征模式被非线性晶体（230），所有这些都在空腔和相位匹配用于腔的激光辐射内部循环的频率变换适当地内并入内部空间上重叠; worin用于调谐空腔本征模式和在多于一个频率上同时谐振腔中，具有温度依赖性的光谱色散色散板（240）内的非线性光学腔和温度控制装置（242.245）提供到调节的温度提供 分散板。