公开(公告)号：US20140043486A1

公开(公告)日：2014-02-13

申请号：US14113250

申请日：2012-04-23

Applicant: Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

Inventor： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

IPC: H04N5/30

CPC classification number: H04N5/30 ,  A61B5/0075 ,  G01J1/42 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2001/442 ,  G01J2003/2826 ,  G01N21/6452 ,  G01N21/763

Abstract: An ultra-weak light multispectral imaging method and an ultra-weak light multispectral imaging system, which can realize multispectral two-dimensional imaging of an ultra-weak light object by constituting a linear array from single-photon detectors of all response wavelengths and combining it with light-splitting technology. The ultra-weak light multispectral two-dimensional imaging system realizes high-resolution optical modulation by adopting the compressive sensing (CS) theory and the digital light processing (DLP) technology and using a linear array single-photon detector as a detection element; the ultra-weak light multispectral two-dimensional imaging system comprises a light filter, a first lens (1), a DMD control system, a second lens, a spectrophotometer, a linear array single-photon detector consisting of a plurality of single-photon detectors with different response wavelengths, and a central processing unit; and the sensitivity of the system can reach the single-photon level. The invention can be widely applied in the fields of biological self-illumination, medical diagnosis, nondestructive material analysis, astronomical observation, national defense and military, spectral measurement, quantum electronics and the like.

Abstract translation: 一种超弱光多光谱成像方法和超弱光多光谱成像系统，可以通过从所有响应波长的单光子检测器构成线性阵列并结合其实现超弱光物体的多光谱二维成像 采用分光技术。 超弱光多光谱二维成像系统采用压缩感知（CS）理论和数字光处理（DLP）技术实现高分辨率光学调制，并采用线性阵列单光子检测器作为检测元件; 超弱光多光谱二维成像系统包括滤光器，第一透镜（1），DMD控制系统，第二透镜，分光光度计，由多个单光子组成的线性阵列单光子检测器 具有不同响应波长的检测器，以及中央处理单元; 并且系统的灵敏度可以达到单光子水平。 本发明可广泛应用于生物自身照明，医疗诊断，无损材料分析，天文观测，国防军事，光谱测量，量子电子等领域。

公开(公告)号：US06654163B1

公开(公告)日：2003-11-25

申请号：US09980521

申请日：2002-04-18

Applicant: Keming Du ,  Peter Loosen ,  Reinhart Poprawe

Inventor： Keming Du ,  Peter Loosen ,  Reinhart Poprawe

IPC: H01S308

CPC classification number: H01S3/2325 ,  H01S3/0632 ,  H01S3/08081 ,  H01S3/094084 ,  H01S3/09415

Abstract: An optical amplifier arrangement, including an amplifying medium, which exhibits an approximately rectangular cross section with a long edge and a short edge, as well as at least two highly reflecting mirrors, between which the amplifying medium is disposed, whereby the long or the short edge of the cross section is along the X axis or the Y axis; the Z axis is the optical axis; and the X, Y and Z axis form a rectangular coordinate system. The mirrors are designed and arranged in such a manner that one beam, which is to be amplified and beamed in by an oscillator, passes repeatedly through the amplifying medium in the XZ plane and is amplified; and the size of the beam to be amplified in the X direction becomes larger after each passage.

Abstract translation: 一种光放大器装置，包括放大介质，其展现出具有长边缘和短边缘的大致矩形横截面，以及至少两个高反射镜，放大介质之间设置有长或短 横截面的边缘沿着X轴或Y轴; Z轴是光轴; 并且X，Y和Z轴形成一个直角坐标系。 反射镜被设计和布置成使得被放大并被振荡器射出的一个光束重复通过XZ平面中的放大媒质并被放大; 在X方向放大的光束的大小在每次通过后变大。

公开(公告)号：US06324190B1

公开(公告)日：2001-11-27

申请号：US09242393

申请日：1999-02-16

Applicant: Keming Du ,  Peter Loosen

Inventor： Keming Du ,  Peter Loosen

IPC: H01S310

CPC classification number: G02B19/0057 ,  G02B19/0028 ,  G02B27/09 ,  G02B27/0905 ,  G02B27/095 ,  G02B27/0972 ,  G02B27/0977 ,  H01S3/005 ,  H01S5/005 ,  H01S5/4025

Abstract: An arrangement is disclosed for geometrically shaping a radiation field, in particular the radiation field of a diode laser array which propagates in the z direction and has a radiation cross section which is larger, in a direction defined as the y direction, which is perpendicular to the first, and has a lower radiation quality in said direction. X, y and z form a Cartesian coordinate system. The radiation is grouped into radiation fractions in the x direction and the radiation fractions are reoriented as regards their radiation cross sections. The arrangement has at least two reflective elements (6) and is characterized in that each reflective element has a pair of reflection surfaces (7,8) at approximately or exactly 90° to each other. This opening angle (9) is oriented against the direction of propagation. The line (10) at which the reflection surfaces intersect is oriented at approximately below 45° to the x direction.

Abstract translation: 公开了一种用于对辐射场进行几何成形的装置，特别是二极管激光器阵列的辐射场，二极管激光器阵列在z方向上传播，并且沿着y方向限定的方向具有较大的辐射截面，该方向垂直于 第一，并且在所述方向上具有较低的辐射质量。 X，y和z形成笛卡尔坐标系。 辐射在x方向被分组为辐射分数，并且辐射分数关于它们的辐射横截面重新定向。 该装置具有至少两个反射元件（6），其特征在于每个反射元件具有彼此大致或恰好90°相对的一对反射表面（7,8）。 该打开角度（9）相对于传播方向定向。 反射面相交的线（10）朝x方向大致低于45°。

公开(公告)号：US5327449A

公开(公告)日：1994-07-05

申请号：US601756

申请日：1992-06-01

Applicant: Keming Du ,  Peter Loosen

Inventor： Keming Du ,  Peter Loosen

IPC: H01S3/034 ,  H01S3/08 ,  H01S3/081

CPC classification number: H01S3/0818 ,  H01S3/08081 ,  H01S3/081

Abstract: Laser resonator, particularly for carbon dioxide lasers, with two resonatornd mirrors having active material between two fully reflecting end mirror faces, which form an unstable resonator cavity, and with at least one third, completely reflecting mirror face reflecting the laser radiation prior to its coupling out through a coupling-out opening of the resonator. So that the laser only requires a reduced degree of coupling out and/or has an improved beam quality, it is constructed in such a way that, in addition to the unstable resonator cavity, between the two end mirrors is provided at least one stable resonator cavity and that the stable resonator cavity is made from the same active material of the third mirror face as the face of one of the two end mirrors with the face of the other end mirror.

Abstract translation: PCT No.PCT / DE89 / 00249 Sec。 371日期：1992年6月1日 102（e）日期1992年6月1日PCT 1989年4月21日PCT PCT。 第WO89 / 10640号公报 日期：1989年11月2日。激光谐振器，特别是用于二氧化碳激光器，具有两个谐振器端镜，其在两个完全反射的端镜面之间具有活性材料，其形成不稳定的谐振腔，并具有至少一个第三，完全反射的镜面 在通过谐振器的耦合开口耦合出来之前反射激光辐射。 因此，激光器仅需要减小的耦合度和/或具有改善的光束质量，其构造方式是除了不稳定的谐振腔之外，在两个后视镜之间提供至少一个稳定谐振器 并且稳定的谐振腔由与第二镜面相同的活性材料制成，与第二镜面中的一个端面的另一端镜的表面相同。

公开(公告)号：US5148443A

公开(公告)日：1992-09-15

申请号：US601757

申请日：1990-12-17

Applicant: Keming Du ,  Peter Loosen ,  Gerd Herziger

Inventor： Keming Du ,  Peter Loosen ,  Gerd Herziger

IPC: H01S3/081

CPC classification number: H01S3/081 ,  H01S3/08059

Abstract: A laser has a beam path multiply folded by two resonator end mirrors and ateast one reflector retroreflectively folding the laser beam. The laser axis is parallel displaced to the axis of a further reflector. In order to improve the laser beam quality while retaining its comparatively low adjustment sensitivity, the beam path is folded at least twice with the retroreflective reflector.

Abstract translation: PCT No.PCT / DE89 / 00250 Sec。 371 1990年12月17日第 102（e）日期1990年12月17日PCT 1989年4月21日PCT PCT。 第WO89 / 10642号公报 日期为1989年11月2日。激光具有通过两个谐振器端面镜折叠的光束路径和至少一个反射器来反射折叠激光束。 激光轴平行移动到另一反射器的轴线上。 为了提高激光束质量同时保持其相对较低的调节灵敏度，光束路径与回射反射器折叠至少两次。

公开(公告)号：US20230387667A1

公开(公告)日：2023-11-30

申请号：US18031881

申请日：2021-10-12

Applicant: KEMING DU

Inventor： KEMING DU

IPC: H01S5/50 ,  H01S3/042 ,  H01S3/06

CPC classification number: H01S5/5027 ,  H01S3/042 ,  H01S3/0604

Abstract: An amplifier arrangement for increasing power and energy includes a multipass cell and at least one gain medium, wherein the multipass cell has concavely curved mirrors and the gain medium is arranged within the multipass cell in such a way that the pump radiation passes through the gain medium multiple times and is absorbed by the gain medium and wherein a laser beam to be amplified passes through the gain medium, characterized in that the mirrors are designed and arranged such that a White multipass cell is formed and the pump radiation and the laser beam to be amplified have large cross-sections at the positions at which mirrors, gain media and other optical components are arranged.

公开(公告)号：US06768763B1

公开(公告)日：2004-07-27

申请号：US09913115

申请日：2001-09-06

Applicant: Keming Du ,  Peter Loosen ,  Reinhart Poprawe ,  Konstantin Boucke

Inventor： Keming Du ,  Peter Loosen ,  Reinhart Poprawe ,  Konstantin Boucke

IPC: H01S308

CPC classification number: H01S5/10 ,  H01S5/1028 ,  H01S5/1071

Abstract: The invention relates to a resonator system with at least two folding elements for folding the beam path. Said folding elements serve to restrict the divergence angle of the radiation. The inventive resonator system is further characterized in that the respective folding is caused by reflection on a reflecting surface of the respective folding element. The beam axis of the radiation and the surface normal of the respective reflecting area are positioned at an angle relative to each other that is greater than the critical angle for the total reflection but smaller than the sum of the critical angle for the total reflection plus the divergence angle of the radiation.

Abstract translation: 本发明涉及一种具有至少两个用于折叠光束路径的折叠元件的谐振器系统。 所述折叠元件用于限制辐射的发散角。 本发明的谐振器系统的特征还在于，各个折叠是由各个折叠元件的反射表面上的反射引起的。 辐射的光束轴线和相应反射区域的表面法线相对于彼此定位成大于全反射的临界角，但是小于全反射的临界角的总和加上 辐射角发散角。

公开(公告)号：US6160664A

公开(公告)日：2000-12-12

申请号：US930129

申请日：1998-02-17

Applicant: Keming Du ,  Peter Loosen

Inventor： Keming Du ,  Peter Loosen

IPC: G02B27/09 ,  H01S3/00 ,  H01S3/101 ,  H01S3/23 ,  H01S5/00 ,  H01S5/40 ,  G02B27/10

CPC classification number: G02B27/09 ,  G02B19/0028 ,  G02B19/0052 ,  G02B27/095 ,  H01S3/005 ,  H01S3/2383 ,  H01S5/005 ,  H01S5/4025

Abstract: A process and device for forming and guiding the radiation field or one or several solid and/or semiconductor lasers, in particular the radiation field of an array or field arrangement of one or several solid and/or semiconductor lasers, comprise radiation transformation optics with refractive elements that generate a defined radiation field. The device is characterized in that the radiation field (4) is subdivided into at least two radiation fractions according to predetermined data. Each radiation fraction enters an associated refractive element (6, 15, 19, 21, 23, 24) with predetermined co-ordinates. Each refractive element (6, 15, 19, 21, 23, 24) refracts the corresponding radiation fraction on at least one of its surfaces (7) so that the radiation fractions leave the refractive elements (6, 15, 19, 21, 23, 24) with output co-ordinates and/or propagation directions modified in relation to each other.

Abstract translation: PCT No.PCT / EP96 / 01287第 371日期1998年2月17日 102（e）日期1998年2月17日PCT 1996年3月23日PCT公布。 公开号WO96 / 34442 日期1996年10月31日用于形成和引导辐射场或一个或多个固体和/或半导体激光器，特别是一个或多个固体和/或半导体激光器的阵列或场布置的辐射场的方法和装置包括 具有产生定义的辐射场的折射元件的辐射转换光学器件。 该装置的特征在于，根据预定数据将辐射场（4）细分为至少两个辐射分数。 每个辐射分数用预定的坐标进入相关联的折射元件（6,15,19,21,23,24）。 每个折射元件（6,15,19,21,23,24）在其表面（7）的至少一个上折射对应的辐射分数，使得辐射分数离开折射元件（6,15,19,21,23 ，24），其输出坐标和/或相对于彼此修改的传播方向。

公开(公告)号：US5887096A

公开(公告)日：1999-03-23

申请号：US817845

申请日：1997-05-27

Applicant: Keming Du ,  Peter Loosen

Inventor： Keming Du ,  Peter Loosen

IPC: G02B6/122 ,  G02B6/42 ,  G02B27/09 ,  H01S3/00 ,  H01S5/00 ,  H01S5/30 ,  H01S5/40 ,  G02B6/26

CPC classification number: H01S5/4025 ,  G02B27/09 ,  H01S3/005 ,  H01S5/005

Abstract: An arrangement in which a reflection lens system shapes and guides beams from a rectilinear laser diode array with beam outlet surfaces lying in a common plane is disclosed In order to map the beams from the individual laser diodes to form a substantially uniform radiation field or pattern using such an arrangement, at least one first reflection component having a reflection surface is associated with each beam in order to bring together the individual outlet beams. The reflection surfaces are disposed in mutually offset planes, the offset corresponding sequentially to the sequence of the laser diodes in the array.

Abstract translation: PCT No.PCT / EP95 / 04215 Sec。 371日期：1997年5月27日 102（e）日期1997年5月27日PCT提交1995年10月26日PCT公布。 出版物WO96 / 13884 日期1996年5月6日公开了一种其中反射透镜系统对来自直立激光二极管阵列的波束形成和引导波束出射表面位于公共平面中的布置。为了映射来自各个激光二极管的光束以形成基本均匀的辐射 使用这种布置的场或图案，具有反射表面的至少一个第一反射部件与每个光束相关联，以便将各个出射光束组合在一起。 反射面设置在相互偏移的平面中，偏移量依次对应于阵列中的激光二极管的序列。

公开(公告)号：US5153893A

公开(公告)日：1992-10-06

申请号：US512382

申请日：1990-04-20

Applicant: Junguan Shen ,  Keming Du

Inventor： Junguan Shen ,  Keming Du

IPC: H01S3/03 ,  H01S3/034 ,  H01S3/08

CPC classification number: H01S3/0343

Abstract: An aerodynamic window for gas lasers, has an active chamber with a beam penetration opening free of solids. An end of a beam duct is connected to the beam penetration opening and is transversely penetrated by a nozzle duct of a gas flow window through which compressed gas can flow. A beam outlet opening delivers a laser beam to an exterior space which is preferably at atmospheric pressure. A suction chamber of a differential pump is provided between the other end of the beam duct and the beam outlet opening, and the working pressure of the differential pump is approximately equal to the pressure in the other end of the beam duct on the suction chamber side.

Abstract translation: 用于气体激光器的空气动力学窗口具有活动室，其具有不含固体的射束穿透开口。 光束管道的一端连接到光束穿透口，并横向穿过压缩气体可以流过的气体流通窗口的喷嘴管道。 梁出口开口将激光束传送到优选在大气压下的外部空间。 差动泵的吸入室设置在梁管的另一端和梁出口之间，差动泵的工作压力大致等于吸入室侧的梁管的另一端的压力 。