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1. 发明申请

US20100226396A1 Optical Arrangement For Pumping Solid-State Lasers 审中-公开
标题翻译：泵浦固体激光器的光学布置
公开(公告)号：US20100226396A1
公开(公告)日：2010-09-09
申请号：US12376393
申请日：2007-07-20
申请人： Guenter Hollemann
发明人： Guenter Hollemann
IPC分类号： H01S3/0941 , H01S3/109 , H01S3/113 , H01S3/14
CPC分类号： H01S3/09415 , G02B6/4206 , G02B27/0927 , G02B27/0994 , H01S3/0604 , H01S3/094057 , H01S3/094084 , H01S3/109 , H01S3/113 , H01S5/005 , H01S5/4012 , H01S5/4031
摘要： In an optical arrangement for pumping solid-state lasers, there is the object of producing an intensity distribution across the beam cross section of the pump radiation with a rectangular intensity profile, which intensity distribution is homogeneous at least in a region corresponding to the Rayleigh range in the direction of the beam propagation without the beam quality being substantially impaired by the homogenization. The pump arrangement contains a rod-shaped homogenizer (1) with two opposed, polished end faces (2,3), planar side limit faces (4), which are arranged parallel to the optical axis and with a cross-sectional area at right angles to the optical axis, which forms a regular polygon, with the regular polygon being restricted to those number of sides which permit a plurality of polygons to be positioned against one another on a surface in such a way that they fill the space.
摘要翻译：在用于泵浦固体激光器的光学装置中，目的是产生横截面上具有矩形强度分布的泵浦辐射束的横截面的强度分布，该强度分布至少在对应于瑞利射程的区域中是均匀的在光束传播的方向上，光束质量基本上受到均质化的损害。泵装置包括一个棒状均质器（1），其具有两个相对的抛光端面（2,3），平面侧极限面（4），它们平行于光轴布置并且具有横截面积在右侧与形成正多边形的光轴的角度，其中正多边形被限制到允许多个多边形在表面上彼此相对定位的那些边数，使得它们填充空间。

2. 发明申请

US20060126676A1 Pulse laser arrangement and method for setting pulse length for laser pulses 失效
标题翻译：脉冲激光器布置和激光脉冲脉冲长度设置方法
公开(公告)号：US20060126676A1
公开(公告)日：2006-06-15
申请号：US10521088
申请日：2003-07-10
申请人： Guenter Hollemann , Martin Leitner , Jan Symanowski
发明人： Guenter Hollemann , Martin Leitner , Jan Symanowski
IPC分类号： H01S3/13
CPC分类号： H01S3/0941 , H01S3/0064 , H01S3/0606 , H01S3/0615 , H01S3/08072 , H01S3/0815 , H01S3/09415 , H01S3/10007 , H01S3/1022 , H01S3/117 , H01S3/1611 , H01S3/1673 , H01S3/2316
摘要： The object of a pulsed laser arrangement and a method for adjusting the pulse length of laser pulses is to change the pulse length over a wide range substantially independent from the laser output power, in particular to counteract a reduction in output and to prevent a negative change in the beam parameters when lengthening the pulse by means of varying the oscillator output. A multistage laser amplifier in which an amplifying medium with a small-signal amplification of more than 10 is provided in every stage (17-22) is arranged downstream of a diode-pumped Q-switched solid state laser oscillator with variable oscillator output for supplying oscillator pulses. The total small-signal amplification brought about by all of the amplifying media is greater than 1000. The pulsed laser arrangement and the method can be used for industrial and medical purposes requiring pulse lengths in the range of several hundred ns to several μs at pulse repetition rates between 10 kHz and 200 kHz.
摘要翻译：脉冲激光装置的目的和用于调节激光脉冲的脉冲长度的方法是在与激光输出功率基本无关的宽范围内改变脉冲长度，特别是为了抵消输出的减小并防止负变化在通过改变振荡器输出来延长脉冲时的光束参数。在每个阶段（17-22）中提供具有大于10的小信号放大的放大介质的多级激光放大器布置在具有可变振荡器输出的二极管泵浦Q开关固态激光振荡器的下游，用于供应振荡器脉冲。由所有放大介质引起的总小信号放大大于1000.脉冲激光装置和方法可用于工业和医疗用途，需要在脉冲重复的几百ns至几mus范围内的脉冲长度速率在10 kHz到200 kHz之间。

3. 发明授权

US07463658B2 Laser and method for generating pulsed laser radiation 有权
标题翻译：用于产生脉冲激光辐射的激光和方法
公开(公告)号：US07463658B2
公开(公告)日：2008-12-09
申请号：US11706920
申请日：2007-02-13
申请人： Guenter Hollemann , Peter Heist , Adolf Giesen , Christian Stolzenburg
发明人： Guenter Hollemann , Peter Heist , Adolf Giesen , Christian Stolzenburg
IPC分类号： H01S3/10 , H01S3/13
CPC分类号： H01S3/109 , H01S3/08054 , H01S3/0813 , H01S3/107 , H01S3/1103
摘要： A laser for generating pulsed laser radiation. An element is arranged in the resonator to generate laser radiation having the first wavelength by frequency conversion of the primary radiation. The resonator is switchable into a first state in which it is open to the primary radiation, and a second state in which it is closed to the primary radiation, and is open to laser radiation of the first wavelength in both states. A control unit switches the resonator from the first to the second state so that the primary radiation begins to oscillate and the pulse generation by frequency conversion begins, switches the resonator from the second to the first state, whereby primary radiation is coupled out from the resonator. It is possible to set the duration between both steps and/or the coupling-out behavior of the resonator to adjust the pulse duration via the control unit.
摘要翻译：用于产生脉冲激光辐射的激光器。在谐振器中布置元件以通过初级辐射的频率转换产生具有第一波长的激光辐射。谐振器可切换到第一状态，其中它对主辐射是开放的，以及第二状态，其中它关闭到初级辐射，并且在两种状态下对第一波长的激光辐射开放。控制单元将谐振器从第一状态切换到第二状态，使得主辐射开始振荡并且通过频率转换开始产生脉冲，从而将谐振器从第二状态切换到第一状态，由此主谐波从谐振器耦合出来。可以设置两个步骤之间的持续时间和/或谐振器的耦合输出行为，以通过控制单元来调节脉冲持续时间。

4. 发明授权

US06973108B2 Arrangement for pumping an anisotropic laser crystal 失效
标题翻译：排列各向异性激光晶体的布置
公开(公告)号：US06973108B2
公开(公告)日：2005-12-06
申请号：US10268321
申请日：2002-10-10
申请人： Bernd Braun , Guenter Hollemann
发明人： Bernd Braun , Guenter Hollemann
IPC分类号： H01S3/094 , H01S3/06 , H01S3/08 , H01S3/0941 , H01S3/16 , H01S3/04
CPC分类号： H01S3/0606 , H01S3/08072 , H01S3/094084 , H01S3/09415 , H01S3/1611 , H01S3/1673
摘要： The object in an arrangement for pumping an anisotropic laser crystal is to reduce the influence of the destruction limit of the laser crystal on increased pump power density and, in this connection, to achieve improved beam quality and increased efficiency of a diode-pumped solid state laser. At the same time, the pump volume and cross-sectional area are to be kept as small as possible along a length of the crystal corresponding at least approximately to the absorption length. The arrangement operates with an asymmetric pump beam whose pump beam cross section has different dimensions perpendicular to one another and with a laser beam cross section which is adapted to this asymmetry. That axis of the crystallographic axes of the anisotropic laser crystal in whose direction the highest value of the crystal breaking limit exists is oriented along the greatest temperature gradient in the direction of the smaller dimension of the pump beam cross section.
摘要翻译：用于泵送各向异性激光晶体的布置的目的是减少激光晶体的破坏极限对增加的泵功率密度的影响，并且在这方面，为了实现改进的光束质量和提高二极管泵浦固态的效率激光。同时，泵的体积和横截面面积应尽可能小地沿着晶体的长度保持至少近似于吸收长度。该装置与不对称泵浦波束一起工作，其泵浦波束截面具有彼此垂直的不同尺寸，并且具有适应于该不对称性的激光束横截面。各向异性激光晶体的结晶轴的轴方向上存在晶体破坏极限值的最高值沿着泵浦光束截面的较小尺寸方向上的最大温度梯度取向。

5. 发明申请

US20050117841A1 Optical array for generating a broadband spectrum 审中-公开
标题翻译：用于产生宽带频谱的光阵列
公开(公告)号：US20050117841A1
公开(公告)日：2005-06-02
申请号：US10514051
申请日：2003-05-07
申请人： Bernd Braun , Guenter Hollemann
发明人： Bernd Braun , Guenter Hollemann
IPC分类号： G02F1/35 , G02F1/365 , G02B6/26
CPC分类号： G02F1/365 , G02F2001/3509 , G02F2201/02
摘要： Disclosed is an optical array for generating a broadband spectrum. The aim of the invention is to reduce the technical complexity of said optical array while keeping the source of laser radiation compact and adjusting in a simple manner the wavelength range of the broadband spectrum to the sensitivity range of conventional semiconductor detectors. Said aim is achieved by coupling in an optically adapted manner a passively mode-coupled solid body laser which supplies picosecond impulses having an initial wavelength that lies within the infrared range to a photonic fiber. A radiation performance interval of the broadband spectrum, which is maintained at an essentially steady intensity, is set within a wavelength range of 700 nm to 1000 nm below the initial wavelength by adjusting the dispersion of said photonic fiber to the initial wavelength. The broadband source of radiation is highly brilliant and can be used in white light interferometry (OCT, coherence radar, spectral radar) and in spectroscopy (pump-probe spectroscopy), among others.
摘要翻译：公开了一种用于产生宽带频谱的光学阵列。本发明的目的是降低所述光学阵列的技术复杂性，同时保持激光辐射源的紧凑并且以简单的方式将宽带频谱的波长范围调整到常规半导体检测器的灵敏度范围。所述目的通过以光学适应的方式耦合被动模式耦合的固体激光器来实现，其将具有位于红外范围内的初始波长的皮秒脉冲提供给光子纤维。通过将所述光子纤维的色散调节到初始波长，将保持在基本上稳定的强度的宽带光谱的辐射性能间隔设置在低于初始波长的700nm至1000nm的波长范围内。宽带辐射源是非常辉煌的，可用于白光干涉测量（OCT，相干雷达，光谱雷达）和光谱（泵浦 - 探针光谱）等。

6. 发明申请

US20080031290A1 Laser and method for generating pulsed laser radiation 有权
公开(公告)号：US20080031290A1
公开(公告)日：2008-02-07
申请号：US11706920
申请日：2007-02-13
申请人： Guenter Hollemann , Peter Heist , Adolf Giesen , Christian Stolzenburg
发明人： Guenter Hollemann , Peter Heist , Adolf Giesen , Christian Stolzenburg
IPC分类号： H01S3/10 , H01S3/11
CPC分类号： H01S3/109 , H01S3/08054 , H01S3/0813 , H01S3/107 , H01S3/1103
摘要： A laser for generating pulsed laser radiation. An element is arranged in the resonator to generate laser radiation having the first wavelength by frequency conversion of the primary radiation. The resonator is switchable into a first state in which it is open to the primary radiation, and a second state in which it is closed to the primary radiation, and is open to laser radiation of the first wavelength in both states. A control unit switches the resonator from the first to the second state so that the primary radiation begins to oscillate and the pulse generation by frequency conversion begins, switches the resonator from the second to the first state, whereby primary radiation is coupled out from the resonator. It is possible to set the duration between both steps and/or the coupling-out behavior of the resonator to adjust the pulse duration via the control unit.

7. 发明申请

US20070030878A1 LASER ARRANGEMENT AND METHOD FOR THE GENERATION OF A MULTIMODE OPERATION WITH INTRACAVITY FREQUENCY DOUBLING 审中-公开
标题翻译：激光装置和用于产生具有干扰频率多重的多模式操作的方法
公开(公告)号：US20070030878A1
公开(公告)日：2007-02-08
申请号：US11419021
申请日：2006-05-18
申请人： Guenter Hollemann , Stefan Knoke
发明人： Guenter Hollemann , Stefan Knoke
IPC分类号： H01S3/10 , H01S3/07 , H01S3/08
CPC分类号： H01S3/109 , H01S3/0604 , H01S3/08027 , H01S3/0805 , H01S3/094084 , H01S3/0941 , H01S3/1062
摘要： In a laser arrangement and a method for generating a multimode operation with intracavity frequency doubling, the object of the invention is to eliminate fluctuations in output caused by the nonlinear coupling between the longitudinal modes due to sum frequency generation in a simple laser construction which has increased thermal and mechanical stability. Two multimode spectral regions are situated in the edge areas of the spectral gain region of a disk-shaped gain medium within which longitudinal modes have no gain advantage among one another for spatial hole burning, and in which oscillation of one of the two multimode spectral regions is prohibited.
摘要翻译：在激光装置和用于产生具有腔内倍频的多模操作的方法中，本发明的目的是消除由于简单激光器结构中的和频产生引起的纵向模式之间的非线性耦合的输出波动，其中增加了热和机械稳定性。两个多模光谱区域位于盘状增益介质的光谱增益区域的边缘区域中，其中纵向模式彼此之间没有增益优点用于空间空穴燃烧，并且其中两个多模光谱区域之一的振荡被禁止。

8. 发明授权

US06661568B2 Diode-pumped laser amplifier 有权
公开(公告)号：US06661568B2
公开(公告)日：2003-12-09
申请号：US09939401
申请日：2001-08-24
申请人： Guenter Hollemann , Jan Symanowski
发明人： Guenter Hollemann , Jan Symanowski
IPC分类号： H01S300
CPC分类号： H01S3/09415 , H01S3/005 , H01S3/025 , H01S3/08072 , H01S3/2316 , H01S3/2333
摘要： In a diode-pumped laser amplifier the inventive object is to increase the tolerance of the amplifier arrangement relative to variations of the input parameters significantly, so that fine-tuning is no longer necessary for guaranteeing the stability of the amplifier. Into a laser-active solid-state medium where a thermal lens of a strength which is different in orthogonal planes is generated in consequence of the irradiated pump radiation, a laser beam to be amplified is directed into the laser-active solid-state medium while being focused in the plane with a strong thermal lens, wherein a beam waist that is being generated lies in the area of the thermal lens. The laser amplifier can be used for amplifying the radiation of an oscillator.

9. 发明授权

US06711184B1 Intracavity frequency-doubled diode-pumped laser 有权
标题翻译：内腔倍频二极管泵浦激光器
公开(公告)号：US06711184B1
公开(公告)日：2004-03-23
申请号：US09856286
申请日：2001-05-18
申请人： Guenter Hollemann , Wolfram Mendler , René Beilschmidt
发明人： Guenter Hollemann , Wolfram Mendler , René Beilschmidt
IPC分类号： H01S310
CPC分类号： H01S3/109 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/09415
摘要： A diode-pumped laser is disclosed with internal frequency doubling to prevent interfering power fluctuations in the laser radiation generated by the non-linear crystal at the start of the power adjustment in a simple and, therefore, inexpensive construction without power-reducing elements in the cavity or thermal effects having a negative impact on the laser behavior. The laser contains, as laser-active medium, a solid-state laser crystal with a temperature gradient directed substantially parallel to the cavity axis. The conversion of laser radiation of a fundamental laser wavelength into laser radiation of another wavelength is carried out by a non-linear optical crystal with a lower non-linear conversion efficiency than that required for achieving maximum power of the converted laser radiation. The laser can be used particularly for medical purposes, e.g., in the field of ophthalmology for coagulation of the retina as well as in the field of dermatology.
摘要翻译：公开了一种二极管泵浦激光器，其具有内部倍频以防止在功率调节开始时由非线性晶体产生的激光辐射中的干扰功率波动，而在简单且因此廉价的结构中，没有减少功率的元件腔或热效应对激光器行为产生负面影响。该激光器包含作为激光活性介质的具有基本上平行于空腔轴线的温度梯度的固态激光晶体。将基本激光波长的激光辐射转换成另一波长的激光辐射，由具有比实现转换的激光辐射的最大功率所需的非线性转换效率低的非线性光学晶体来进行。激光可以特别用于医疗目的，例如在视网膜凝结眼科领域以及皮肤病领域。

10. 发明授权

US5877898A Arrangement for combining and shaping the radiation of a plurality of laser diode lines 失效
标题翻译：用于组合和成形多个激光二极管线的辐射的布置
公开(公告)号：US5877898A
公开(公告)日：1999-03-02
申请号：US849577
申请日：1997-06-03
申请人： Guenter Hollemann , Hermann Voelckel , Michail Michailovic Chaleev , Arthur Afanasevic Mak , Vladimir Ivanovic Ustyugov , Aleksej Vadimovic Michailov , Georgij Egorovic Novikov , Oleg Aleksandrovic Orlov
发明人： Guenter Hollemann , Hermann Voelckel , Michail Michailovic Chaleev , Arthur Afanasevic Mak , Vladimir Ivanovic Ustyugov , Aleksej Vadimovic Michailov , Georgij Egorovic Novikov , Oleg Aleksandrovic Orlov
IPC分类号： G02B6/32 , G02B6/42 , G02B27/09 , G02B27/10 , G02B27/14 , H01S5/40
CPC分类号： G02B19/0057 , G02B19/0028 , G02B27/143 , H01S5/4025 , H01S5/4012
摘要： 0587788986 The arrangement for combining and shaping the radiation of a plurality of laser diode lines, comprising at least two laser diode lines whose radiation has a cross section in the emission plane (x-y plane) whose longitudinal axis is a multiple of the transverse axis, one collimator unit for each laser diode line, which collimator unit is arranged downstream thereof in the radiation directly, a combining unit for combining the collimated radiation of the individual laser diode lines by a side-by-side arrangement in the direction of the transverse axis, and a recombining unit for dividing the combined radiation in the direction of the longitudinal axes into individual partial beams and recombining the latter by a side-by-side arrangement in the direction of the transverse axes.
摘要翻译： PCT No.PCT / EP96 / 04127 Sec。 371日期：1997年6月3日 102（e）日期1996年6月3日PCT 1996年9月20日PCT公布。公开号WO97 / 14073 日期：1997年4月17日，公开了用于组合和整形多个激光二极管线的辐射的装置，其包括至少两个激光二极管线，其辐射在发射平面（xy平面）中具有横截面，其纵轴是横轴，每个激光二极管线的一个准直器单元，该准直器单元被布置在辐射直接的下游;合成单元，用于将各个激光二极管线的准直辐射沿并排布置方向以及用于将沿纵向轴线的方向的组合辐射分成单独的部分光束并将其通过在横向轴线的方向上的并排布置的方式重新组合的重组单元。

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