公开(公告)号：US20240339804A1

公开(公告)日：2024-10-10

申请号：US18132047

申请日：2023-04-07

申请人： Khanh Le ,  John Lekavich ,  Bao Tran

发明人： Khanh Le ,  John Lekavich ,  Bao Tran

IPC分类号： H01S3/117 ,  H01S3/00 ,  H01S3/1123 ,  H01S3/115

CPC分类号： H01S3/117 ,  H01S3/0057 ,  H01S3/1123 ,  H01S3/115

摘要： A laser metal deposition system includes a laser source those laser beam is provided to an acousto-optic deflector that includes an optical element having a surface with one or more steps formed thereon; a conductive layer formed on the surface with the steps; one or more crystals secured to each step; and electrodes positioned on each surface of each crystal.

公开(公告)号：US20230396032A1

公开(公告)日：2023-12-07

申请号：US18295297

申请日：2023-04-04

申请人： Meta Platforms Technologies, LLC

发明人： Ehsan Vadiee ,  Tingling Rao ,  Tanya Malhotra ,  Andrew John Ouderkirk

IPC分类号： H01S3/115 ,  H01S3/0941 ,  H01S3/06

CPC分类号： H01S3/115 ,  H01S3/0602 ,  H01S3/0941

摘要： A device includes an active laser medium operative to emit spatially coherent light of a predetermined wavelength along an optical axis, first and second mirrors aligned with the optical axis and defining a resonant cavity enclosing the active laser medium, and a modulator including an organic solid crystal disposed along the optical axis between the first and second mirrors and configured to change a polarization state of the emitted light.

公开(公告)号：US20180309260A1

公开(公告)日：2018-10-25

申请号：US15957787

申请日：2018-04-19

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Young Min JHON ,  Byunghyuck MOON ,  Young In JOHN ,  Minah SEO ,  Jaehun KIM ,  Yongsang RYU ,  Taikjin LEE ,  Seok LEE

IPC分类号： H01S3/11 ,  H01S3/00 ,  H01S3/10 ,  H01S3/08

CPC分类号： H01S3/1112 ,  H01S3/08027 ,  H01S3/08036 ,  H01S3/08054 ,  H01S3/092 ,  H01S3/0941 ,  H01S3/10061 ,  H01S3/107 ,  H01S3/1075 ,  H01S3/11 ,  H01S3/1103 ,  H01S3/1109 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1623 ,  H01S3/1625 ,  H01S3/1636 ,  H01S3/1643 ,  H01S2301/08

摘要： Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.

公开(公告)号：US20170212239A1

公开(公告)日：2017-07-27

申请号：US15007436

申请日：2016-01-27

申请人： U.S.A. as represented by the Administrator of the National Aeronautics and Space Administration

发明人： Paul R. Stysley ,  Barry Coyle

IPC分类号： G01S17/88 ,  G01S7/484 ,  H01S3/0941 ,  H01S3/11 ,  H01S3/08 ,  H01S5/40 ,  H01S3/04 ,  G01S7/481 ,  H01S3/16

CPC分类号： G01S17/88 ,  G01S7/4813 ,  G01S7/484 ,  G01S7/497 ,  H01S3/0014 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0606 ,  H01S3/08063 ,  H01S3/08072 ,  H01S3/0941 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1643

摘要： A diode pumped, solid state laser is provided that can produce over 16 billion, 15 mJ, 10 ns Q-Switched laser pulses with a low measured decay rate. The laser can be integrated into a global biomass measuring instrument, and mounted on the International Space Station (ISS).

公开(公告)号：US09684077B2

公开(公告)日：2017-06-20

申请号：US14618879

申请日：2015-02-10

申请人： Lockheed Martin Corporation

发明人： Roy D. Mead ,  John D. Minelly ,  Eric C. Honea

IPC分类号： H01S3/10 ,  G01S17/89 ,  H01S3/067 ,  H01S3/16 ,  G01S7/481 ,  H04B10/80 ,  H01S3/115 ,  G01B11/28 ,  G01B11/25 ,  H01S3/08 ,  H01S3/094 ,  H01S3/107 ,  H01S3/11 ,  H01S3/00

CPC分类号： G01S17/89 ,  G01B11/2518 ,  G01B11/28 ,  G01S7/4813 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/06754 ,  H01S3/06791 ,  H01S3/08027 ,  H01S3/094003 ,  H01S3/107 ,  H01S3/11 ,  H01S3/115 ,  H01S3/1616 ,  H04B10/80 ,  H04B10/808

摘要： An apparatus, method and associated fiber-laser architectures for high-power pulsed operation and pumping wavelength-conversion devices. Some embodiments generate blue laser light by frequency quadrupling infrared (IR) light from Tm-doped gain fiber using non-linear wavelength conversion. Some embodiments use a fiber MOPA configuration to amplify a seed signal from a semiconductor laser or ring fiber laser. Some embodiments use the frequency-quadrupled blue light for underwater communications, imaging, and/or object and anomaly detection. Some embodiments amplitude modulate the IR seed signal to encode communication data sent to or from a submarine once the modulated light has its wavelength quartered. Other embodiments transmit blue-light pulses in a scanned pattern and detect scattered light to measure distances to objects in a raster-scanned underwater volume, which in turn are used to generate a data structure representing a three-dimensional rendition of the underwater scene being imaged for viewing by a person or for other software analysis.

公开(公告)号：US09653872B2

公开(公告)日：2017-05-16

申请号：US14295919

申请日：2014-06-04

申请人： Lockheed Martin Corporation

发明人： Fabio Di Teodoro ,  Tracy W. Vatter ,  Christopher D. Brooks ,  Robert W. Royse ,  Matthias P. Savage-Leuchs

IPC分类号： H01S3/083 ,  H01S3/067 ,  H01S3/11 ,  H01S3/00 ,  H01S3/16 ,  H01S3/23 ,  H01S3/094 ,  G02F1/37 ,  H01S3/115

CPC分类号： H01S3/06791 ,  G02F1/37 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/06708 ,  H01S3/06712 ,  H01S3/08027 ,  H01S3/094011 ,  H01S3/09408 ,  H01S3/1103 ,  H01S3/115 ,  H01S3/1618 ,  H01S3/2308

摘要： A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.

公开(公告)号：US20170047704A1

公开(公告)日：2017-02-16

申请号：US15063834

申请日：2016-03-08

申请人： AGENCY FOR DEFENSE DEVELOPMENT

发明人： Yeon-Chul HA ,  Jae-Hwan LEE ,  Young-Il KANG ,  Ki-Ho CHO ,  Jae-Ihn KIM ,  Joon-Young CHO

IPC分类号： H01S3/109 ,  G02B5/04 ,  G02B5/20 ,  H01S3/0941 ,  H01S3/04

CPC分类号： H01S3/109 ,  G02B5/04 ,  G02B5/208 ,  G02F1/353 ,  G02F1/3532 ,  G02F2001/3507 ,  G02F2001/354 ,  H01S3/0071 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/08059 ,  H01S3/0941 ,  H01S3/115

摘要： A high-order harmonic wave generation apparatus using a diode-pumped solid state laser includes a pump head for generating a fundamental wave, Porro prisms disposed on the left and right sides of the pump head, nonlinear crystals for sequentially generating a second-order harmonic wave, a fourth-order harmonic wave, and a fifth-order harmonic wave from the fundamental wave, and a final emission unit for reflecting and transmitting any one of the second-order harmonic wave, the fourth-order harmonic wave, and the fifth-order harmonic wave and for emitting the harmonic wave without changing the optical path. Accordingly, the apparatus is insensitive to changes in the external environment through a resonator having a structure comprising Porro prisms, and enables the final emission unit to selectively output the fourth-order harmonic wave or the fifth-order harmonic wave.

摘要翻译： 使用二极管泵浦固态激光器的高次谐波发生装置包括：用于产生基波的泵头，设置在泵头左侧和右侧的波罗棱镜，用于顺序产生二次谐波的非线性晶体 波，四次谐波和基波的五次谐波，以及用于反射和发射二次谐波，四次谐波和第五次谐波中的任一个的最终发射单元 并且用于发射谐波而不改变光路。 因此，该装置通过具有波罗棱镜结构的谐振器对外部环境的变化不敏感，并且能够使最终发射单元选择性地输出四次谐波或五阶谐波。

公开(公告)号：US20160352068A1

公开(公告)日：2016-12-01

申请号：US15165568

申请日：2016-05-26

申请人： Korea Institute of Science and Technology

发明人： Young Min JHON ,  Joon Mo AHN ,  Seok LEE ,  Jae Hun KIM ,  Min Ah SEO ,  Chul Ki KIM ,  Taik Jin LEE ,  Deok Ha WOO ,  Min Chul PARK

IPC分类号： H01S3/11 ,  H01S3/107 ,  H01S3/00 ,  H01S3/115 ,  H01S3/13

CPC分类号： H01S3/1109 ,  H01S3/115 ,  H01S3/127 ,  H01S3/1305

摘要： Provided is a single pulse laser apparatus. The apparatus including a resonator having a first mirror, a second mirror, a gain medium, and electro-optic modulators (EOMs) which perform each mode-locking and Q-switching, the apparatus includes a photodiode which measures laser light that oscillates from the resonator, a synchronizer which converts an electrical signal generated by measuring the laser light into a transistor-transistor logic (TTL) signal, a delay unit which sets a latency determined in order to synchronize a mode-locked pulse with a Q-switched pulse to the TTL signal, and outputs a trigger TTL signal according to the latency, and a Q-driver which inputs the trigger TTL signal to the EOM which performs Q-switching, and causes the EOM to operates.

摘要翻译： 提供单脉冲激光装置。 该装置包括具有执行每个模式锁定和Q开关的第一反射镜，第二镜，增益介质和电光调制器（EOM）的谐振器，该装置包括光电二极管，其测量从 谐振器，将通过测量激光产生的电信号转换为晶体管晶体管逻辑（TTL）信号的同步器;延迟单元，其设定为将锁定脉冲与Q切换脉冲同步的等待时间 TTL信号，并根据延迟输出触发TTL信号，以及将触发TTL信号输入到执行Q切换的EOM的Q驱动器，并使EOM工作。

公开(公告)号：US09391424B2

公开(公告)日：2016-07-12

申请号：US14469547

申请日：2014-08-26

申请人： The UAB Research Foundation

发明人： Sergey B. Mirov ,  Andrew Gallian ,  Alan Martinez ,  Vladimir V. Fedorov

IPC分类号： H01S3/06 ,  H01S3/092 ,  H01S3/113 ,  H01S3/16 ,  B05D1/00 ,  B05D3/00 ,  C23C14/18 ,  H01S3/115 ,  H01S3/117 ,  G02F1/35

CPC分类号： H01S3/11 ,  B05D1/60 ,  B05D3/007 ,  C23C14/185 ,  G02F1/3523 ,  H01S3/092 ,  H01S3/113 ,  H01S3/115 ,  H01S3/117 ,  H01S3/1608 ,  H01S3/1623 ,  H01S3/163 ,  H01S3/164 ,  H01S3/1696 ,  H01S3/1698 ,  H01S2301/00

摘要： This disclosure demonstrates successfully using single, polycrystalline, hot pressed ceramic, and thin film Fe doped binary chalcogenides (such as ZnSe and ZnS) as saturable absorbing passive Q-switches. The method of producing polycrystalline ZnSe(S) yields fairly uniform distribution of dopant, large coefficients of absorption (5-50 cm−1) and low passive losses while being highly cost effective and easy to reproduce. Using these Fe2+:ZnSe crystals, stable Q-switched output was achieved with a low threshold and the best cavity configuration yielded 13 mJ/pulse single mode Q-switched output and 85 mJ in a multipulse regime.

摘要翻译： 本公开演示成功地使用单个，多晶，热压陶瓷和薄膜掺杂Fe的二元硫族化物（例如ZnSe和ZnS）作为可饱和吸收的无源Q开关。 生产多晶ZnSe（S）的方法产生相当均匀的掺杂剂分布，大的吸收系数（5-50厘米-1）和低被动损耗，同时具有高成本效益和易于再生。 使用这些Fe2 +：ZnSe晶体，以低阈值实现了稳定的Q开关输出，并且最佳腔配置在多脉冲方案中产生13mJ /脉冲单模Q开关输出和85mJ。

公开(公告)号：US09368933B1

公开(公告)日：2016-06-14

申请号：US14679358

申请日：2015-04-06

申请人： Voxtel, Inc.

发明人： Anmol Nijjar ,  Joe LaChapelle ,  George Williams

IPC分类号： H01S3/11 ,  H01S3/16 ,  H01S3/092 ,  H01S3/0933 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/13 ,  H01L31/0304 ,  H01L31/107 ,  H01S3/094 ,  H01S3/113 ,  H01S3/115 ,  H01S3/117 ,  H01S3/121 ,  H01S3/02 ,  H01S3/04 ,  H01S1/02

CPC分类号： H01S1/02 ,  H01S3/025 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/094038 ,  H01S3/094053 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1061 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1124 ,  H01S3/113 ,  H01S3/115 ,  H01S3/117 ,  H01S3/121 ,  H01S3/1312 ,  H01S3/1317 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/1666

摘要： A laser system, the laser comprising a codoped Er,Yb:YAB gain medium, the gain medium within a resonator cavity. The laser system further comprising a pumping source, the pumping source having optical output directed towards the gain medium. The laser system further comprising a laser controller, the laser controller operating the pumping source.

摘要翻译： 激光系统，激光器包括共掺杂的Er，Yb：YAB增益介质，谐振腔内的增益介质。 所述激光系统还包括泵浦源，所述泵浦源具有指向所述增益介质的光学输出。 激光系统还包括激光控制器，激光控制器操作泵浦源。