公开(公告)号：US5728509A

公开(公告)日：1998-03-17

申请号：US470273

申请日：1995-06-06

Applicant: Akira Eda ,  Kiyofumi Muro

Inventor： Akira Eda ,  Kiyofumi Muro

IPC: G02B3/00 ,  G02B6/124 ,  G02F1/37 ,  G03F7/00 ,  H01S3/05 ,  H01S3/06 ,  H01S3/23 ,  H01S5/10 ,  H01S5/183

CPC classification number: H01S3/2383 ,  G02B3/0012 ,  G02B3/0018 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/0068 ,  G02B6/1245 ,  G02F1/37 ,  G03F7/0005 ,  H01S3/0627 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/09415 ,  H01S3/2308 ,  H01S5/0267 ,  H01S5/18388

Abstract: At least one convex (or concave) arcuate face is formed by photolithography on a photoresist film formed on a surface of an optical device made of an optical material. The surface of the optical device and the photoresist film are etched to form, on the surface of the optical device, at least one convex (or concave) arcuate face similar to the convex (or concave) arcuate face formed on the photoresist film. After the surface of the optical material is mirror face polished, a photoresist film is formed on the polished surface, and the polished surface and the photoresist film are etched uniformly. An optical device obtained in this manner is used for a laser oscillator, a monolithic laser system, a nonlinear optical device, a microlens, a ring laser and so forth. Further, a plurality of reflecting portions are provided on a pair of opposing surfaces of a light transmitting optical material. At least one of the opposing surfaces is formed on the convex arcuate face. A zigzag optical path is formed between the reflecting portions of the opposing faces of the light transmitting optical material such that it couples the reflecting portions alternately to each other, thereby to obtain an optical device having a long optical path. The optical device is employed as a higher harmonic wave converting device, highly efficient for a short wavelength laser apparatus.

Abstract translation: 通过光刻法形成在由光学材料制成的光学器件的表面上的光致抗蚀剂膜上形成至少一个凸（或凹）弧形面。 蚀刻光学器件和光致抗蚀剂膜的表面以在光学器件的表面上形成与形成在光致抗蚀剂膜上的凸（或凹）弧形面相似的至少一个凸（或凹）弧形表面。 在光学材料的表面被镜面抛光之后，在抛光表面上形成光致抗蚀剂膜，并且抛光表面和光致抗蚀剂膜被均匀地蚀刻。 以这种方式获得的光学器件用于激光振荡器，单片激光系统，非线性光学器件，微透镜，环形激光器等。 此外，多个反射部分设置在透光光学材料的一对相对表面上。 至少一个相对表面形成在凸形弓形面上。 在透光性光学材料的相对面的反射部分之间形成锯齿形光路，使得它们彼此交替地耦合反射部分，从而获得具有长光路的光学器件。 光学装置被用作高次谐波转换装置，对于短波长激光装置是高效的。

公开(公告)号：US5651021A

公开(公告)日：1997-07-22

申请号：US537899

申请日：1996-01-18

Applicant: James Richard ,  Alasdair McInnes

Inventor： James Richard ,  Alasdair McInnes

IPC: H01S3/06 ,  H01S3/08 ,  H01S3/0941

CPC classification number: H01S3/0941 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0625 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/115

Abstract: This invention relates to a diode pumped slab laser in the form of a slab where two opposite faces are adapted to receive pumping radiation with the faces being cut at the Brewsters angle at one end to provide entrance/exit faces for the lasing radiation. The laser radiation beam follows a zig-zag path in the slab and is contained within the slab by total internal reflection. The laser slab is contained within an optical cavity which results in the laser beam completing a double zig-zag beam path. The design results in good pump/mode matching, mitigates thermally induced birefringence problems, overcomes amplified spontaneous emission problems, requires no coatings or curved surfaces, and is easy and relatively inexpensive to make. The slab can be used within both Quasi-CW and CW modes.

Abstract translation: PCT No.PCT / AU94 / 00207 Sec。 371日期：1996年1月18日 102（e）日期1996年1月18日PCT 1994年4月21日PCT PCT。 出版物WO94 / 24734 PCT 日期：1994年10月27日本发明涉及一种板坯形式的二极管泵浦板式激光器，其中两个相对的表面适于接收泵浦辐射，其一端在一端被切割成布鲁斯特斯角，以提供入口/出口面 激光辐射。 激光辐射束遵循板坯中的锯齿形路径，并通过全内反射包含在板坯内。 激光板被包含在光学腔内，导致激光束完成双曲折光束路径。 该设计产生良好的泵/模式匹配，减轻热诱导的双折射问题，克服了放大的自发发射问题，不需要涂层或弯曲表面，并且制造容易且相对便宜。 板坯可以在准CW和CW模式下使用。

公开(公告)号：US5640406A

公开(公告)日：1997-06-17

申请号：US415880

申请日：1995-04-03

Applicant: Hagop Injeyan ,  Randall J. St. Pierre

Inventor： Hagop Injeyan ,  Randall J. St. Pierre

IPC: G02F1/35 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/109 ,  H01S3/23 ,  H01S3/00

CPC classification number: H01S3/2316 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0941 ,  H01S3/0407 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/10076 ,  H01S3/109

Abstract: Apparatus, and a related method, for compensating for birefringence introduced in a birefringent medium, such as a solid-state amplifier. The invention includes the combination of a quarter-wave plate, a Faraday rotator and a mirror, which may be a phase conjugation cell. Light passing through the quarter-wave plate is substantially circularly polarized, which is advantageous if the mirror is a phase conjugation cell using stimulated Brillouin scattering (SBS). A second pass through the quarter-wave plate provides a linearly polarized beam of which the polarization angle is orthogonally related to that of the original beam, to facilitate out-coupling of energy from the apparatus. The Faraday rotator effects a total polarization angle rotation of 90.degree. in two passes and helps compensate for birefringence when the beam is passed through the birefringent medium again on the return pass. The combination of the quarter-wave plate and the Faraday rotator provides better birefringence cancellation than either element acting alone.

Abstract translation: 用于补偿在双折射介质（例如固态放大器）中引入的双折射的装置和相关方法。 本发明包括四分之一波片，法拉第旋转器和反射镜的组合，其可以是相位共轭单元。 通过四分之一波片的光基本上是圆偏振的，如果反射镜是使用受激布里渊散射（SBS）的相位共轭单元，这是有利的。 通过四分之一波片的第二次通过提供线性偏振光束，其偏振角与原始光束正交相关，以促进来自该装置的能量的外耦合。 法拉第旋转器在两次通过中实现90°的总偏振角旋转，并且当光束在返回通道上再次通过双折射介质时有助于补偿双折射。 四分之一波片和法拉第旋转器的组合提供比单独作用的任一元件更好的双折射消除。

公开(公告)号：US5479430A

公开(公告)日：1995-12-26

申请号：US384948

申请日：1995-02-07

Applicant: Robert J. Shine, Jr. ,  Anthony J. Alfrey ,  Robert L. Byer

Inventor： Robert J. Shine, Jr. ,  Anthony J. Alfrey ,  Robert L. Byer

IPC: H01S3/06 ,  H01S3/08 ,  H01S3/0941

CPC classification number: H01S3/0606 ,  H01S3/0941 ,  H01S3/0625 ,  H01S3/08072 ,  H01S3/08095

Abstract: A protective coating [26] and a method for applying the same on an optically pumped solid state laser [10] having a lasing medium in the form of a slab [12] with at least two opposed parallel pumping faces [18, 20] between which a laser beam [11] propagates along a zig-zag path dictated by total internal reflection between these pumping faces. The slab [12] has an input face [14] for coupling in the laser beam and an output face [16] for coupling it out. The protective coating [26] is an organic synthetic, processed thermoplastic, or thermosetting polymer. Preferred materials include polymethylmethacrylate (PMMA), polyvinylidene chloride (PVC), polyethylene, polyimide, and Mylar.The protective coating [26] is applied onto the slab [12] from a solution in which the solvent is selected from the group of materials consisting of ketones, esters, and perfluorinated solvents. Most preferably, the protective coating [26] is a random copolymer of tetrafluoroethylene (TFE) and 2,2,bis-trifluoromethyl-4,5 difluoro 1,3 dioxole, traded under the name Teflon AF (R), and the solvent is a perfluorinated solvent. Most preferably, the perfluorinated solvent is a completely fluorinated organic compound comprising primarily C.sub.8 F.sub.18 (e.g., Fluorinert FC-75 (R)).

Abstract translation: 一种保护涂层及其应用于光泵浦固体激光器[10]的方法，该固体激光器具有呈板状[12]形式的激光介质，其具有至少两个相对的平行泵送面[18,20] 激光束[11]沿着由这些泵送面之间的全内反射指定的之字形路径传播。 板[12]具有用于在激光束中耦合的输入面[14]和用于将其耦合的输出面[16]。 保护涂层[26]是有机合成，加工的热塑性或热固性聚合物。 优选的材料包括聚甲基丙烯酸甲酯（PMMA），聚偏二氯乙烯（PVC），聚乙烯，聚酰亚胺和聚酯薄膜。 将保护涂层[26]从其中溶剂选自由酮，酯和全氟化溶剂组成的材料组成的溶液施加到板坯[12]上。 最优选地，保护性涂层[26]是四氟乙烯（TFE）和2,2,1-双三氟甲基-4,5-二氟-1,3-二氧杂环戊烯的无规共聚物，以名称TeflonAF交易，溶剂是 全氟化溶剂。 最优选地，全氟化溶剂是主要包含C 8 F 18（例如Fluorinert FC-75）的完全氟化的有机化合物。

公开(公告)号：US5005182A

公开(公告)日：1991-04-02

申请号：US419757

申请日：1989-10-11

Applicant: Myron C. Muckerheide

Inventor： Myron C. Muckerheide

IPC: H01S3/093

CPC classification number: H01S3/093 ,  H01S3/0625

Abstract: An improved laser pumping apparatus in which a plurality of generally spherical beads are disposed in pumping energy transmitting juxtaposition with the active outer surface of a laser element so as to be positioned between the active outer surface of the laser element and a pumping energy source. in a neodymium doped yttrium aluminum garnet laser element pumped by a flash lamp, the beads are made of silicon. The beads are approximately 50 to 100 microns in diameter and may be attached directly to the active outer surface of the laser element, such as by using a pumping energy transmitting adhesive, or the beads may be attached to an intermediate transparent or translucent pumping energy transmitting member such as a thin sleeve that fits over a laser element configured as a rod.

Abstract translation: 一种改进的激光泵送装置，其中多个大体上球形的珠子被布置成泵浦能量与激光元件的活动外表面并置地并置，以便被定位在激光元件的活动外表面和泵送能量源之间。 在由闪光灯泵浦的钕掺杂钇铝石榴石激光元件中，珠由硅制成。 珠子的直径约为50至100微米，并且可以直接附接到激光元件的活性外表面，例如通过使用泵送能量传递粘合剂，或者珠可以附接到中间透明或半透明泵浦能量传递 诸如薄套管的构件，其配合在被配置为杆的激光元件上。

公开(公告)号：US4916712A

公开(公告)日：1990-04-10

申请号：US385419

申请日：1989-07-27

Applicant: Gerald M. Bender

Inventor： Gerald M. Bender

IPC: H01S3/06 ,  H01S3/0941

CPC classification number: H01S3/0941 ,  H01S3/0606 ,  H01S3/0625 ,  H01S3/094084

Abstract: There is provided an optically pumped laser having highly reflective coatings on opposite sides such that multiple reflections of radiation between the reflective coatings of the opposed sides produce lasing in a transverse mode. A plurality of diode lasers mounted in a linear array along the opposed sides with reflective coatings provide pumping emission to the laser. An optical alignment means consisting of prisms receive the stimulating emission from individual diode lasers and align individual stimulating emission such that it is colinear with the reflective radiation within the laser cavity.

Abstract translation: 提供了在相对侧上具有高反射涂层的光泵浦激光器，使得相对侧的反射涂层之间的辐射的多次反射以横向模式产生激光。 安装在具有反射涂层的相对侧的线性阵列中的多个二极管激光器向激光器提供泵浦发射。 由棱镜组成的光学对准装置接收来自各个二极管激光器的刺激发射，并对齐各个刺激发射，使得其与激光腔内的反射辐射共线。

公开(公告)号：US4894839A

公开(公告)日：1990-01-16

申请号：US231192

申请日：1988-08-11

Applicant: Thomas M. Baer

Inventor： Thomas M. Baer

IPC: H01S3/094 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/109 ,  H01S5/022

CPC classification number: H01S3/0941 ,  H01S3/109 ,  H01S5/02252 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/09408 ,  H01S5/005 ,  H01S5/4031

Abstract: A high effieciency pumping scheme mode matches the TEMOO laser mode volume with a plurality of spaced apart laser diode pumping sources positioned along a lateral side of a block of laser material. The cavity resonator within the block is configured in tightly folded zig-zag configuration. Pump radiation from the diode pumping sources is collimated by an optical fiber and the fold angle is selected to mode match the pump radiation to the mode volume. Parasitic oscillation across the laser block are prevented.

Abstract translation: 高效率泵送方案模式将TEM00激光模式体积与沿着激光材料块的侧面定位的多个间隔开的激光二极管泵浦源匹配。 块内的空腔谐振器被配置成紧密折叠的之字形配置。 来自二极管泵浦源的泵浦辐射由光纤校准，并且折叠角被选择为将泵浦辐射与模式体积匹配。 阻止了激光块的寄生振荡。

公开(公告)号：US4860295A

公开(公告)日：1989-08-22

申请号：US283431

申请日：1988-12-12

Applicant: Robert L. Byer ,  Tso Y. Fan

Inventor： Robert L. Byer ,  Tso Y. Fan

IPC: H01S3/06

CPC classification number: H01S3/0612 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084

Abstract: In a transverse-pumped, solid-state laser, a nonabsorptive cladding surrounds a gain medium. A single transverse mode, namely the TEM.sub.00 mode, is provided. The TEM.sub.00 mode has a cross-sectional diameter greater than a transverse dimension of the gain medium but less than a transverse dimension of the cladding. The required size of the gain medium is minimized while a threshold for laser output is lowered.

Abstract translation: 在横向泵浦的固态激光器中，非吸收性包层围绕增益介质。 提供单一横向模式，即TEM00模式。 TEM00模式的横截面直径大于增益介质的横向尺寸，但小于包层的横向尺寸。 所需的增益介质尺寸最小化，而激光输出的阈值降低。

公开(公告)号：US12057679B2

公开(公告)日：2024-08-06

申请号：US16844035

申请日：2020-04-09

Applicant: SCHOTT AG

Inventor： Antoine Carré ,  Alain Danielou ,  Stefanie Hansen ,  Dirk Apitz

IPC: H01S3/06 ,  C03C3/068 ,  C03C4/00 ,  C03C4/08 ,  C03C14/00 ,  H01S3/16 ,  H01S3/17 ,  H01S5/20 ,  H01S5/32 ,  C03C3/07 ,  C03C17/22 ,  C03C17/28 ,  C03C21/00

CPC classification number: H01S5/3215 ,  C03C3/068 ,  C03C4/0071 ,  C03C4/082 ,  C03C14/00 ,  H01S3/0612 ,  H01S3/1636 ,  H01S3/176 ,  H01S5/2022 ,  H01S5/3224 ,  C03C3/07 ,  C03C17/22 ,  C03C17/28 ,  C03C21/00 ,  H01S3/0625 ,  H01S3/1625

Abstract: The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. Thus, a laser component with improved efficiency is obtained. The present disclosure also relates to a method for producing the laser component.

公开(公告)号：US20190020172A1

公开(公告)日：2019-01-17

申请号：US16131825

申请日：2018-09-14

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： ROMAIN GAUME ,  ERIC CUNNINGHAM ,  SHI CHEN

IPC: H01S3/11 ,  H01S3/16 ,  H01S3/06

CPC classification number: H01S3/1115 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/1615 ,  H01S3/1623 ,  H01S3/1625 ,  H01S3/1636 ,  H01S3/1643 ,  H01S3/2308 ,  H01S2301/02

Abstract: A solid-state laser amplifier includes a core material providing an active gain medium. A cladding material is on the core material that is the same material as the core material that further comprises a broadband absorber material. The cladding material suppresses transverse oscillations in solid-state, single-crystal or ceramic laser amplifiers by employing a native-material, solid-state, index-matched cladding containing an appropriate broadband absorber.