公开(公告)号：US20240039237A1

公开(公告)日：2024-02-01

申请号：US18245841

申请日：2021-09-17

Applicant: Arizona Board of Regents on Behalf of the University of Arizona

Inventor： Yushi Kaneda

IPC: H01S3/23 ,  H01S3/10

CPC classification number: H01S3/2341 ,  H01S3/10061 ,  H01S2301/02

Abstract: The described methods and devices minimize or reduce the effects of the leading amplified spontaneous emission component of an optical pulse in optical multi-pass amplifier systems. One multi-pass optical amplifier includes a gain medium positioned to receive a pump laser, and to receive an optical pulse having a main component and one or both of a leading or a trailing component. The optical amplifier also includes one or more reflectors positioned at a first side or at a second side of the gain medium that allow multi-pass propagation of the optical pulse through the gain medium. The one or more reflectors are positioned to allow the main component of the optical pulse to traverse through the gain medium in a first pass before the leading component of the optical pulse reaches the gain medium in a second pass through the gain medium.

公开(公告)号：US20190067897A1

公开(公告)日：2019-02-28

申请号：US15692653

申请日：2017-08-31

Applicant: Coherent, Inc.

Inventor： Andrei STARODOUMOV ,  Norman HODGSON

IPC: H01S3/23 ,  H01S3/06 ,  H01S3/16 ,  H01S3/067

CPC classification number: H01S3/2325 ,  H01S3/0057 ,  H01S3/0606 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10023 ,  H01S3/1618 ,  H01S3/164 ,  H01S3/1641 ,  H01S3/1643 ,  H01S3/1668 ,  H01S3/167 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/235

Abstract: Laser-apparatus includes a fiber-MOPA arranged to deliver amplified seed optical pulses having a wavelength of about 1043 nanometers to a multi-pass ytterbium-doped yttrium aluminum garnet solid-state optical amplifier for further amplification.

公开(公告)号：US08422524B2

公开(公告)日：2013-04-16

申请号：US12481225

申请日：2009-06-09

Applicant: Santanu Basu

Inventor： Santanu Basu

IPC: H01S3/14

CPC classification number: H01S3/0604 ,  F28D15/00 ,  F28D19/04 ,  G02F1/3501 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08009 ,  H01S3/08095 ,  H01S3/083 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1055 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/2383 ,  H01S5/024 ,  H01S5/02423

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink. A high-power laser generator may be formed by using a number of disks containing lasing material, exciting the lasing material using at least one laser excitation source, and bringing them into optical communication with a laser generator.

Abstract translation: 提供了包括由至少一个激光材料构成的盘的旋转盘激光器模块。 激光材料可以被诸如被引导到盘上的光泵浦光束的激光激发源激发。 激光增益区域包含激发的激光材料并在盘的第一和第二表面之间延伸。 当增益区域与激光发生器进行光通信时，形成激光发生器。 激光发生器可以是激光振荡器或激光放大器。 为了对激光模块实现各种激光功能，磁盘可以移动。 例如，盘可以旋转，平移或倾斜以旋转增益区域，提供各种量子效应，或者实现与散热器的热传递。 可以通过使用包含激光材料的多个盘来形成大功率激光发生器，使用至少一个激光源激发激光材料，并使它们与激光发生器进行光通信。

公开(公告)号：US20110273766A1

公开(公告)日：2011-11-10

申请号：US13072581

申请日：2011-03-25

Applicant: Kenneth R. Manes ,  Mary L. Spaeth ,  Alvin C. Erlandson

Inventor： Kenneth R. Manes ,  Mary L. Spaeth ,  Alvin C. Erlandson

IPC: H01S3/00

CPC classification number: H01S3/2333 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/2316 ,  H01S3/2341 ,  H01S3/2383

Abstract: A main amplifier system includes a first reflector operable to receive input light through a first aperture and direct the input light along an optical path. The input light is characterized by a first polarization. The main amplifier system also includes a first polarizer operable to reflect light characterized by the first polarization state. The main amplifier system further includes a first and second set of amplifier modules. Each of the first and second set of amplifier modules includes an entrance window, a quarter wave plate, a plurality of amplifier slablets arrayed substantially parallel to each other, and an exit window. The main amplifier system additionally includes a set of mirrors operable to reflect light exiting the first set of amplifier modules to enter the second set of amplifier modules and a second polarizer operable to reflect light characterized by a second polarization state.

Abstract translation: 主放大器系统包括第一反射器，其可操作以通过第一孔接收输入光并沿着光路引导输入光。 输入光的特征在于第一极化。 主放大器系统还包括可操作以反射以第一偏振态为特征的光的第一偏振器。 主放大器系统还包括第一和第二组放大器模块。 第一和第二组放大器模块中的每一个包括入口窗口，四分之一波片，彼此基本平行排列的多个放大器滑块以及出射窗口。 主放大器系统还包括一组反射镜，其可操作以反射离开第一组放大器模块的光进入第二组放大器模块;以及第二偏光器，可操作以反射以第二偏振状态为特征的光。

公开(公告)号：US20110043899A1

公开(公告)日：2011-02-24

申请号：US12544988

申请日：2009-08-20

Applicant: Alvin Charles Erlandson

Inventor： Alvin Charles Erlandson

IPC: H01S3/05 ,  G02B3/06 ,  G02B13/08 ,  H01S3/17

CPC classification number: H01S3/2333 ,  G02B19/0014 ,  G02B19/0052 ,  G02B27/0966 ,  G02B27/0988 ,  G02B27/46 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0805 ,  H01S3/2341 ,  H01S3/235

Abstract: A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.

Abstract translation: 空间滤波器包括与第一滤波器元件重叠的第一滤波器元件和第二滤波器元件。 第一过滤器元件包括由第一距离分开的第一对柱面透镜。 第一对柱面透镜中的每一个具有第一焦距。 第一过滤器元件还包括位于第一对柱面透镜之间的第一狭缝过滤器。 第二过滤器元件包括由第二距离分开的第二对柱面透镜。 第二对柱面透镜中的每一个具有第二焦距。 第二过滤元件还包括位于第二对柱面透镜之间的第二狭缝过滤器。

公开(公告)号：US07688443B2

公开(公告)日：2010-03-30

申请号：US11548678

申请日：2006-10-11

Applicant: Harry Rieger

Inventor： Harry Rieger

IPC: G01J3/30

CPC classification number: G01J3/10 ,  G01J3/443 ,  G01N21/718 ,  H01S3/08054 ,  H01S3/10038 ,  H01S3/10046 ,  H01S3/107 ,  H01S3/1103 ,  H01S3/115 ,  H01S3/127 ,  H01S3/2316 ,  H01S3/2341 ,  H01S3/2383

Abstract: A sample analysis system comprises a laser unit and a spectrometer unit. The laser unit emits a first laser pulse and a second laser pulse towards the sample with a pulse separation time of between about 1 microsecond to 20 microseconds. The laser unit includes an oscillator unit which is configured to generate the first laser pulse and the second laser pulse. A pre-amplifier unit is configured to receive the first laser pulse and the second laser pulse and increase the energy levels of each pulse prior to the pulses being emitted from the laser unit. The spectrometer unit captures emissions generated by the sample after the sample is stuck by the first and second laser pulses and identifies the elemental constituents of the sample using the emissions.

Abstract translation: 样品分析系统包括激光单元和光谱仪单元。 激光单元以约1微秒至20微秒之间的脉冲间隔时间向样品发射第一激光脉冲和第二激光脉冲。 激光单元包括被配置为产生第一激光脉冲和第二激光脉冲的振荡器单元。 预放大器单元被配置为在从激光单元发射脉冲之前接收第一激光脉冲和第二激光脉冲并增加每个脉冲的能级。 在样品被第一和第二激光脉冲粘附之后，光谱仪单元捕获样品产生的发射，并使用排放物识别样品的元素成分。

公开(公告)号：US07590160B2

公开(公告)日：2009-09-15

申请号：US10998268

申请日：2004-11-26

Applicant: Jeffrey G. Manni

Inventor： Jeffrey G. Manni

IPC: H01S3/06

CPC classification number: H01S3/0941 ,  H01S3/005 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0625 ,  H01S3/063 ,  H01S3/08077 ,  H01S3/08095 ,  H01S3/083 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/2325 ,  H01S3/2333 ,  H01S3/2341 ,  H01S2301/02

Abstract: A laser amplifier includes a laser active slab with a source of pump power to amplify an input laser beam, the laser active slab including a block of laser active material having opposed lateral faces defining a wedge lateral dihedral angle, opposed longitudinal faces, and opposed parallel transverse faces, the wedge lateral dihedral angle specified to minimize parasitic amplified spontaneous emission. The source of pump power may be one or more laser diode bars and microlenses producing a gain sheet in the laser active slab. The lateral faces may include optical coatings highly transmitting at a wavelength of the pump power and highly reflecting at a lasing wavelength to provide a folded path for the input laser beam though the gain sheet. The laser amplifier may optionally include one or more external mirrors highly reflecting at the lasing wavelength positioned and oriented to provide one or more additional zig-zag passes through the gain sheet for the input laser beam and to provide a multi-pass-amplified laser beam.

Abstract translation: 激光放大器包括具有泵浦功率源的激光活性板，用于放大输入激光束，激光活性板包括激光活性材料块，其具有限定楔形横向二面角的相对侧面，相对的纵向面和相对的平行 横向面，楔形横向二面角规定为最小化寄生放大自发辐射。 泵浦功率源可以是在激光活性板中产生增益片的一个或多个激光二极管条和微透镜。 侧面可以包括在泵浦功率的波长处高度透射并且以激光波长高度反射的光学涂层，以通过增益片提供用于输入激光束的折叠路径。 激光放大器可以可选地包括一个或多个外部反射镜，其以定位的定位和定向的激光波长高度反射，以提供一个或多个另外的锯齿形通过用于输入激光束的增益片，并且提供多通道放大激光束 。

公开(公告)号：US20080025356A1

公开(公告)日：2008-01-31

申请号：US11895571

申请日：2007-08-24

Applicant: Joshua Rothenberg

Inventor： Joshua Rothenberg

IPC: H01S3/04

CPC classification number: H01S3/0941 ,  H01S3/0606 ,  H01S3/063 ,  H01S3/08095 ,  H01S3/2308 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/2383 ,  H01S2301/02

Abstract: A high power laser system is provided having a master oscillator for generating a reference laser beam of desired beam quality, means for dividing the reference beam into multiple sub-beams, a multi-slab gain module positioned to receive the multiple sub-beams as input beams, and means for adjusting the sub-beams in phase to allow the output sub-beams to be coherently combined as a single composite output beam. Optionally, additional multi-slab gain modules similar to the first multi-slab gain module may be positioned to receive amplified output sub-beams from the first multi-slab gain module. The additional multi-slab gain modules generate further amplified output sub-beams of high aggregate power.

Abstract translation: 提供了一种高功率激光系统，其具有用于产生所需光束质量的参考激光束的主振荡器，用于将参考光束分成多个子光束的装置，多平板增益模块，定位成接收多个子光束作为输入 光束，以及用于相位调整子光束以使输出子光束相干地组合为单个复合输出光束的装置。 可选地，可以将类似于第一多板增益模块的附加多板增益模块定位成从第一多板增益模块接收放大的输出子光束。 附加的多板增益模块产生具有高聚集功率的进一步放大的输出子光束。

公开(公告)号：US20070248137A1

公开(公告)日：2007-10-25

申请号：US11811480

申请日：2007-06-11

Applicant: Santanu Basu

Inventor： Santanu Basu

IPC: H01S3/06

CPC classification number: H01S3/0604 ,  F28D15/00 ,  F28D19/04 ,  G02F1/3501 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08009 ,  H01S3/08095 ,  H01S3/083 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1055 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/2383 ,  H01S5/024 ,  H01S5/02423

Abstract: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The disk further includes a first surface, a second surface and a gain region. The gain region contains excited lasing material and extends between the first and second surfaces. The lasing material may be excited by a pump beam directed onto the disk. A laser is generated when the gain region is brought into optical communication with a laser generator. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink.

Abstract translation: 提供了包括由至少一个激光材料构成的盘的旋转盘激光器模块。 盘还包括第一表面，第二表面和增益区域。 增益区域包含激发的激光材料并且在第一和第二表面之间延伸。 激光材料可以被引导到盘上的泵浦光束激发。 当增益区域与激光发生器进行光通信时产生激光。 为了对激光模块实现各种激光功能，磁盘可以移动。 例如，盘可以旋转，平移或倾斜以旋转增益区域，提供各种量子效应，或者实现与散热器的热传递。

公开(公告)号：US20060262815A1

公开(公告)日：2006-11-23

申请号：US11135093

申请日：2005-05-23

Applicant: Igor Klimov ,  Hubert Ammann

Inventor： Igor Klimov ,  Hubert Ammann

IPC: H01S3/098 ,  H01S3/091

CPC classification number: H01S3/1075 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0085 ,  H01S3/09415 ,  H01S3/1118 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2316 ,  H01S3/2325 ,  H01S3/2341

Abstract: An apparatus for generating electromagnetic radiation pulses comprises a mode-locked laser oscillator with an oscillator cavity defining an oscillator beam path, a first gain element, first pumping means for pumping said first gain element, and a mode locker, and being operable to produce a train of seed electromagnetic radiation pulses. Further an optical switch is placed outside of the oscillator beam path and is arranged in a beam path of radiation coupled out from the oscillator, the optical switch operable to couple radiation from a switch input into a switch output during a certain time period or certain time periods. A radiation amplifier is arranged in a beam path of radiation radiated from the switch output. The amplifier includes a second gain element and second pumping means, the second pumping means comprising a continuous-wave pump radiation source.

Abstract translation: 一种用于产生电磁辐射脉冲的装置包括具有限定振荡器光束路径的振荡器腔的锁模激光振荡器，第一增益元件，用于泵浦所述第一增益元件的第一泵送装置和模式储物柜，并且可操作地产生 种子电磁辐射脉冲。 此外，光学开关被放置在振荡器光束路径的外部并且被布置在从振荡器耦合出的辐射的光束路径中，所述光学开关可操作以在一定时间段或特定时间期间将来自开关输入的辐射耦合到开关输出 时期。 辐射放大器布置在从开关输出辐射的辐射的光束路径中。 放大器包括第二增益元件和第二泵送装置，第二泵送装置包括连续波泵辐射源。