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1. 发明申请

US20030025987A1 Laser amplifier system 有权
标题翻译：激光放大器系统
公开(公告)号：US20030025987A1
公开(公告)日：2003-02-06
申请号：US10208664
申请日：2002-07-29
申请人： Universitaet Stuttgart Institut fuer Strahlwerkzeuge
发明人： Steffen Erhard , Adolf Giesen , Christian Stewen
IPC分类号： H01S003/00
CPC分类号： H01S3/0604 , H01S3/094084 , H01S3/09415
摘要： The invention relates to a laser amplifier system consisting of a solid body, which comprises a laser-active medium, of a pumping radiation source for generating a pumping radiation field, which repeatedly permeates the solid body, and of a focusing system. Said focusing system generates a number of different branches of the pumping radiation field that enter the solid body and converts at least one branch emerging from the solid body into one of the branches which enter the solid body and which are different from the emerging branch. The aim of the invention is to improve a laser amplifier system of the aforementioned type in order to be able to generate the highest possible pumping power density in the solid body while requiring the smallest possible amount of complexity. To this end, the focusing system comprises at least one deviating unit which converts, by deviating the radiation field with regard to a single plane of symmetry, at least two first partial branches formed from at least two different branches of the pumping radiation field emerging from the solid into at least two corresponding second partial branches which locally extend in a manner that is separate from the first partial branches and of which at least two branches entering the solid body are formed.
摘要翻译：本发明涉及一种由固体构成的激光放大器系统，该固体包括激光活性介质，用于产生反复渗透固体的泵浦辐射场的泵浦辐射源和聚焦系统。所述聚焦系统产生多个不同的泵送辐射场的分支，其进入固体，并将从固体体出来的至少一个分支转化成进入固体的分支中的一个，并且不同于出现的分支。本发明的目的是改进上述类型的激光放大器系统，以便能够在固体中产生尽可能高的泵浦功率密度，同时需要最小可能的复杂度。为此，聚焦系统包括至少一个偏离单元，其通过相对于单个对称平面偏离辐射场来转换至少两个由泵浦辐射场的至少两个不同分支形成的第一部分分支所述固体进入至少两个对应的第二部分分支，所述至少两个对应的第二部分分支以与所述第一部分分支分开的方式局部延伸，并且形成至少两个进入所述固体的分支。

2. 发明申请

US20130182732A1 LASER SYSTEM 有权
标题翻译：激光系统
公开(公告)号：US20130182732A1
公开(公告)日：2013-07-18
申请号：US13624129
申请日：2012-09-21
申请人： Universitaet Stuttgart Institut fuer Strahlwerkzeuge
发明人： Marwan Abdou Ahmed , Andreas Voss
IPC分类号： H01S5/068
CPC分类号： H01S5/068 , H01S3/08009 , H01S3/08031 , H01S5/141 , H01S5/4062 , H01S5/4081 , H01S5/4087
摘要： To improve a laser system comprising at least one externally stabilizable semiconductor laser, from the laser active zone of which a laser radiation field can be coupled oute, and a feedback element, disposed externally in the laser radiation field, which couples out, from the laser radiation field, a feedback radiation field having a defined wavelength and bandwidth, and couples back same into the active laser zone for determining the wavelength and bandwidth of the laser radiation field, in such a way that the wavelength stabilization may be achieved more cost-effectively, it is proposed that the feedback element is a resonant waveguide grating which reflects back a portion of the laser radiation field lying within an angular acceptance range.
摘要翻译：为了改善包括至少一个可外部稳定的半导体激光器的激光系统，其激光辐射场可以耦合到其外部的激光活动区域，以及设置在激光辐射场外部的反馈元件，其从激光器耦合出来辐射场，具有确定的波长和带宽的反馈辐射场，并将其耦合到有源激光区域中，以确定激光辐射场的波长和带宽，使得波长稳定可以更具成本效益地实现提出反馈元件是将位于角度接收范围内的激光辐射场的一部分反射的谐振波导光栅。

3. 发明授权

US08687667B2 Laser system 有权
标题翻译：激光系统
公开(公告)号：US08687667B2
公开(公告)日：2014-04-01
申请号：US13624129
申请日：2012-09-21
申请人： Universitaet Stuttgart Institut fuer Strahlwerkzeuge
发明人： Marwan Abdou Ahmen , Andreas Voss
IPC分类号： H01S3/08
CPC分类号： H01S5/068 , H01S3/08009 , H01S3/08031 , H01S5/141 , H01S5/4062 , H01S5/4081 , H01S5/4087
摘要： To improve a laser system comprising at least one externally stabilizable semiconductor laser, from the laser active zone of which a laser radiation field can be coupled out, and a feedback element, disposed externally in the laser radiation field, which couples out, from the laser radiation field, a feedback radiation field having a defined wavelength and bandwidth, and couples back same into the active laser zone for determining the wavelength and bandwidth of the laser radiation field, in such a way that the wavelength stabilization may be achieved more cost-effectively, it is proposed that the feedback element is a resonant waveguide grating which reflects back a portion of the laser radiation field lying within an angular acceptance range.
摘要翻译：为了改善包括至少一个可外部稳定的半导体激光器的激光系统，其激光辐射场可以被耦合出来的激光活动区域和设置在激光辐射场外部的反馈元件，其从激光器耦合出来辐射场，具有确定的波长和带宽的反馈辐射场，并将其耦合到有源激光区域中，以确定激光辐射场的波长和带宽，使得波长稳定可以更具成本效益地实现提出反馈元件是将位于角度接收范围内的激光辐射场的一部分反射的谐振波导光栅。

4. 发明授权

US06891874B2 Laser amplifier system 有权
标题翻译：激光放大器系统
公开(公告)号：US06891874B2
公开(公告)日：2005-05-10
申请号：US10208664
申请日：2002-07-29
申请人： Steffen Erhard , Adolf Giesen , Christian Stewen
发明人： Steffen Erhard , Adolf Giesen , Christian Stewen
IPC分类号： H01S3/0933 , H01S3/06 , H01S3/081 , H01S3/0941 , H01S3/03
CPC分类号： H01S3/0604 , H01S3/094084 , H01S3/09415
摘要： The invention relates to a laser amplifier system consisting of a solid body, which comprises a laser-active medium, of a pumping radiation source for generating a pumping radiation field, which repeatedly permeates the solid body, and of a focusing system. Said focusing system generates a number of different branches of the pumping radiation field that enter the solid body and converts at least one branch emerging from the solid body into one of the branches which enter the solid body and which are different from the emerging branch. The aim of the invention is to improve a laser amplifier system of the aforementioned type in order to be able to generate the highest possible pumping power density in the solid body while requiring the smallest possible amount of complexity. To this end, the focusing system comprises at least one deviating unit which converts, by deviating the radiation field with regard to a single plane of symmetry, at least two first partial branches formed from at least two different branches of the pumping radiation field emerging from the solid into at least two corresponding second partial branches which locally extend in a manner that is separate from the first partial branches and of which at least two branches entering the solid body are formed.
摘要翻译：本发明涉及一种由固体构成的激光放大器系统，该固体包括激光活性介质，用于产生反复渗透固体的泵浦辐射场的泵浦辐射源和聚焦系统。所述聚焦系统产生多个不同的泵送辐射场的分支，其进入固体，并将从固体体出来的至少一个分支转化成进入固体的分支中的一个，并且不同于新出现的分支。本发明的目的是改进上述类型的激光放大器系统，以便能够在固体中产生尽可能高的泵浦功率密度，同时需要最小可能的复杂度。为此，聚焦系统包括至少一个偏离单元，其通过相对于单个对称平面偏离辐射场来转换至少两个由泵浦辐射场的至少两个不同分支形成的第一部分分支所述固体进入至少两个对应的第二部分分支，所述至少两个对应的第二部分分支以与所述第一部分分支分开的方式局部延伸，并且形成至少两个进入所述固体的分支。

5. 发明申请

US20050152415A1 Optically pumped semi-conductive laser 有权
标题翻译：光泵浦半导体激光器
公开(公告)号：US20050152415A1
公开(公告)日：2005-07-14
申请号：US10999894
申请日：2004-11-29
申请人： Adolf Giesen , Svent-Simon Beyertt , Uwe Brauch
发明人： Adolf Giesen , Svent-Simon Beyertt , Uwe Brauch
IPC分类号： H01S3/04 , H01S3/091 , H01S3/092 , H01S3/30 , H01S5/024 , H01S5/028 , H01S5/04 , H01S5/14 , H01S5/183 , H01S5/34 , H01S5/343 , H01S5/40 , H01S5/42
CPC分类号： H01S5/141 , B82Y20/00 , H01S3/094084 , H01S5/024 , H01S5/028 , H01S5/041 , H01S5/183 , H01S5/341 , H01S5/343 , H01S5/4062 , H01S5/423
摘要： In order to operate a laser amplifier system comprising a solid-state body thermally coupled to a cooling member and having a laser active volume area, in which at least one laser-active amplifier structure consisting of semiconductor material is arranged in at least one surface and extends at least over partial areas of the surface, a pumping radiation source generating a pumping radiation field for the optical pumping of the laser-active volume area and an optical means of the amplifier defining a laser amplifier radiation field passing through the laser active volume area, as efficiently as possible it is suggested that the absorption of pumping radiation from the pumping radiation field in the laser-active amplifier structure be equal to or greater than the absorption of pumping radiation by a surrounding structure adjacent to the amplifier structure and that the pumping radiation field proceed such that it passes several times through the amplifier structure.
摘要翻译：为了操作包括与冷却构件热耦合并且具有激光有源体积面积的固态体的激光放大器系统，其中至少一个由半导体材料组成的激光放射结构布置在至少一个表面中，至少在表面的部分区域上延伸，泵浦辐射源产生用于激光激活体积区域的光泵浦的泵浦辐射场，以及放大器的光学装置，其限定通过激光器有源体积区域的激光放大器辐射场，尽可能有效地提出，激光 - 有源放大器结构中的泵浦辐射场的泵浦辐射的吸收等于或大于与放大器结构相邻的周围结构的泵浦辐射的吸收，并且泵浦辐射场进行，使得其通过放大器结构几次。

6. 发明申请

US20030026315A1 Laser amplifier system 有权
标题翻译：激光放大器系统
公开(公告)号：US20030026315A1
公开(公告)日：2003-02-06
申请号：US10208663
申请日：2002-07-29
申请人： Universitaet Stuttgart Institut fuer Strahlwerkzeuge
发明人： Steffen Erhard , Adolf Giesen
IPC分类号： H01S003/091 , H01S003/092 , H01S003/08
CPC分类号： H01S3/2325 , H01S3/0604 , H01S3/08 , H01S3/08059
摘要： The invention relates to a laser amplifier system consisting of a solid body, which comprises a laser-active medium, of an excitation source for producing an excited state of the laser-active medium, and of an amplifier radiation field, which repeatedly permeates the solid body and out of which a laser beam can be decoupled. The aim of the invention is to improve a laser-amplifier system of this type so that the highest number of passages of the amplifier radiation field through the solid body can be attained using optical means that are provided in the most simple possible form. To this end, the invention provides radiation field guiding optics which enable the amplifier radiation field to enter the solid body in the form of a number of incident branches with locally different trajectories, and which enable the amplifier radiation field to exit the solid body in the form of at least one emerging branch with a trajectory that differs locally from those of the incident branches. In addition, the radiation field guiding optics comprise at least one deviating unit which, out of at least one of the branches emerging from the solid body, forms a branch which enters the solid body and which has a trajectory that differs locally from that of said emerging branch.
摘要翻译：本发明涉及一种激光放大器系统，其包括固体，其包括激光源，用于产生激光活性介质的激发态的激发源和放射线辐射场，其反复渗透固体身体，其中激光束可以被去耦。本发明的目的是改进这种类型的激光放大器系统，使得通过以最简单的可能形式提供的光学装置可以获得通过固体的放大器辐射场的最大数量的通道。为此，本发明提供了辐射场引导光学器件，其能够使放大器辐射场以具有局部不同轨迹的许多入射分支的形式进入固体，并且使得放大器辐射场能够在至少一个新兴分支的形式，具有与事件分支的轨迹不同的轨迹。此外，辐射场引导光学器件包括至少一个偏离单元，在至少一个从固体体出现的分支中，形成进入固体的分支，并且具有与所述固体的局部不同的轨迹新兴分行。

7. 发明授权

US6157755A Laser system 失效
标题翻译：激光系统
公开(公告)号：US6157755A
公开(公告)日：2000-12-05
申请号：US42597
申请日：1998-03-16
申请人： Uwe Brauch , Hans Opower , Adolf Giesen
发明人： Uwe Brauch , Hans Opower , Adolf Giesen
IPC分类号： G02B6/42 , H01S5/40 , G02B6/26
CPC分类号： G02B6/4249 , H01S5/4025 , H01S5/4006 , H01S5/4012 , H01S5/4062
摘要： In order to improve a laser system comprising a fiber bundle consisting of single mode fibers which form with a first end a fiber bundle end, at which a total radiation field, which can be imaged onto a target surface, is formed from laser radiation exiting from the first ends of the fibers, and which are coupled with a second end to a subsystem generating the laser radiation with at least one semiconductor laser, such that this also operates efficiently with semiconductor lasers or semiconductor laser amplifiers and can be realized in an inexpensive manner it is suggested that the subsystem comprise a plurality of semiconductor laser units operating parallel, that all the semiconductor laser units of the subsystem operate with the same wavelength in a phase-balanced manner relative to one another as a result of master laser radiation coupled into them and that individual laser radiation exiting from the individual semiconductor laser units of the respective subsystem be combined by means of a coupling device of the respective subsystem to form a coherent laser radiation field which can be coupled into one of the single mode fibers.
摘要翻译：为了改进包括由单模光纤组成的光纤束的激光系统，该光纤束与第一端形成纤维束端，在该光纤束端可以从激光辐射出射可以成像到目标表面上的总辐射场纤维的第一端，并且与第二端耦合到产生具有至少一个半导体激光器的激光辐射的子系统，使得其也可以用半导体激光器或半导体激光放大器有效地工作，并且可以以便宜的方式实现建议子系统包括多个平行操作的半导体激光器单元，子系统的所有半导体激光器单元以彼此相位的相位波形相互作用，作为耦合到其中的主激光辐射的结果并且从各个子系统的各个半导体激光器单元射出的各个激光辐射由我组合以便形成相关的激光辐射场，所述相干激光辐射场可耦合到单模光纤之一中。

8. 发明授权

US5553088A Laser amplifying system 失效
标题翻译：激光放大系统
公开(公告)号：US5553088A
公开(公告)日：1996-09-03
申请号：US172126
申请日：1993-12-22
申请人： Uwe Brauch , Adolf Giesen , Andreas Voss , Klaus Wittig
发明人： Uwe Brauch , Adolf Giesen , Andreas Voss , Klaus Wittig
IPC分类号： H01S3/04 , H01S3/042 , H01S3/06 , H01S3/07 , H01S3/081 , H01S3/0941 , H01S3/106 , H01S3/109 , H01S3/23
CPC分类号： H01S3/109 , H01S3/042 , H01S3/0604 , H01S3/07 , H01S3/081 , H01S3/0941 , H01S3/1062 , H01S3/025 , H01S3/0405 , H01S3/08 , H01S3/083 , H01S3/094053 , H01S3/094057 , H01S3/09408 , H01S3/2333
摘要： A laser amplifying system is provided having a solid body arranged in a laser radiation field and including a laser active material that is pumped with a pumping light source. The solid body has a cooling surface and transfers heat created therein to a solid cooling element via the cooling surface. In this manner, a temperature gradient results in the solid body in a direction towards the cooling surface. The solid cooling element forms a carrier for the solid body. The laser radiation field propagates approximately parallel to the temperature gradient in the solid body. By enabling heat to be transferred to the solid cooling element via the cooling surface, this structure enables the solid body to be pumped at a high pumping power. Further, since the laser radiation field propagates approximately parallel to the temperature gradient in the solid body, the radiation field sees the same temperature gradient in all cross-sectional areas. Thus, the temperature gradient does not lead to an adverse effect on the beam quality of the laser radiation field at high pumping power.
摘要翻译：提供一种激光放大系统，其具有布置在激光辐射场中的实体，并且包括用泵浦光源泵浦的激光活性材料。固体具有冷却表面，并通过冷却表面将产生的热量传递给固体冷却元件。以这种方式，温度梯度导致固体在朝向冷却表面的方向上。固体冷却元件形成用于固体的载体。激光辐射场大致平行于固体中的温度梯度传播。通过使得热能够经由冷却表面传递到固体冷却元件，这种结构使得能够以高泵送功率泵送固体。此外，由于激光辐射场大致平行于固体中的温度梯度传播，因此辐射场在所有横截面积中看到相同的温度梯度。因此，在高泵浦功率下，温度梯度不会对激光辐射场的光束质量造成不利影响。

9. 发明授权

US5513195A Phase-controlled, fractal laser system 失效
$Phase-controlled, fractal laser system$
标题翻译：相控分形激光系统
公开(公告)号：US5513195A
公开(公告)日：1996-04-30
申请号：US307712
申请日：1994-09-21
申请人： Hans Opower , Helmut Huegel , Adolf Giesen
发明人： Hans Opower , Helmut Huegel , Adolf Giesen
IPC分类号： H01S3/10 , B23K26/06 , B23K26/064 , G02B6/04 , G02B6/34 , G02B6/42 , G02F1/01 , H01S3/094 , H01S3/23 , H01S5/00 , H01S5/068 , H01S5/40 , H01S5/42 , H01S3/098
CPC分类号： H01S5/4025 , B23K26/032 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , G02B6/4204 , G02B6/4249 , H01S5/4012 , H01S5/42 , H01S5/423
摘要： In order to improve a semiconductor laser system with a plurality of semiconductor laser units, from which laser radiation exits, a light-conducting fiber associated with each semiconductor laser unit, a coupling element for coupling the laser radiation exiting from the respective semiconductor laser unit into the respective light-conducting fiber, and a fiber bundle comprising the fibers as light conductor system, a total laser radiation formed by the sum of the laser radiations generated by the respective semiconductor laser units exiting from one end of this fiber bundle, the total laser radiation illuminating a target surface on an object to be irradiated during laser activity of all the semiconductor laser units, such that complex irradiation tasks can be performed it is suggested that the semiconductor laser units be designed such that they operate relative to one another in a phase-defined and frequency-defined mode operation, that the laser radiation of each semiconductor laser unit be coupled into the respective laser light-conducting fiber with low loss, that each fiber be a single-mode fiber and that in the total laser radiation the laser radiations of several, preferably all of the semiconductor laser units be controllable in their phase independently of one another.
摘要翻译： PCT No.PCT / DE94 / 00036 Sec。 371日期1994年9月21日 102（e）1994年9月21日PCT PCT 1994年1月14日PCT公布。出版物WO94 / 17575 日期为1994年8月4日。为了改善具有激光辐射出射的多个半导体激光器单元的半导体激光系统，与每个半导体激光器单元相关联的导光纤维，用于耦合离开的激光辐射的耦合元件从相应的半导体激光器单元到相应的导光纤维，以及包括作为光导体系统的光纤的光纤束，由从各个半导体激光器单元的一端离开的各个半导体激光器单元产生的激光辐射之和形成的总激光辐射该光纤束，在所有半导体激光器单元的激光活动期间，总的激光辐射照射被照射物体上的目标表面，使得可以执行复杂的照射任务，建议将半导体激光器单元设计成使得其操作在相位定义和频率定义的模式操作中相对于彼此，每个s的激光辐射半导体激光器单元以低损耗耦合到相应的激光导光纤维中，每个光纤是单模光纤，而在总的激光辐射中，几个，优选所有的半导体激光器单元的激光辐射可以在它们的相位彼此独立。

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