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1. 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。

2. 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。

3. 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。

4. 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。

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