公开(公告)号：US20040052284A1

公开(公告)日：2004-03-18

申请号：US10332753

申请日：2003-10-14

发明人： Ulf Krause ,  Artur Afanaslovich Mak ,  Boris Grigorievich Malinin ,  Valeriy Mikhaylovich Mitkin ,  Vladimir Georgievich Pankov ,  Victor Anatollevich Serebryakov ,  Vladimir Ivanovich Ustyugov ,  Bernd Braun

IPC分类号： H01S003/04 ,  H01S003/091 ,  H01S003/092

CPC分类号： H01S3/0941 ,  H01S3/005 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084 ,  H01S3/1611 ,  H01S3/1643

摘要： The inventive module of a light-pumped laser comprises light pump sources, a solid-state active element which is embodied in the form of a plate and provided with a couple of first opposite side faces, the distance therebetween defining the width of the active element for passing a pump radiation therethrough from the pump sources to the active element; a couple of second opposite side faces, the distance therebetween defining the thickness of the active element, which faces are embodied in the plane-parallel manner in order to direct a beam of formed laser radiation in such a way that it enables said beam to pass along the length of the active element in a zigzag manner, undergoing a total internal reflection from the couple of second side faces; a couple of end faces, the distance therebetween defining the length of the active element, and also heat-spreading devices which have a thermal contact with each second face in order to remove heat from the active element. In order to reduce radiation divergence, increase the laser-excitation efficiency and to increase the heat resistance of the active element, said element is embodied in such a way that the width thereof is greater than the thickness thereof. For the purpose of the pump radiation, the first side faces are embodied in a transparent manner. The arrangement of the light pump sources with respect to the active element and the directional diagram thereof are such that at least one greater part of the pump radiation is diffused inside the active element along the width thereof in zigzag manner by means of the total internal reflection from the second side faces.

摘要翻译： 光泵浦激光器的本发明模块包括光泵源，固体有源元件，其以板的形式实施并且设置有一对第一相对侧面，其间限定有源元件的宽度 用于将泵浦辐射从泵浦源传递到有源元件; 一对第二相对侧面，其间限定有源元件的厚度的距离以面平行的方式被体现，以便以这样一种方式引导形成的激光辐射束，使其能使所述光束通过 沿着活动元件的长度以锯齿形的方式从第二侧面的一对中经历全内反射; 两个端面之间的距离限定了有源元件的长度，以及与每个第二面具有热接触以便从有源元件移除热量的热扩散器件。 为了减少辐射发散，增加激光激发效率并增加有源元件的耐热性，所述元件以其宽度大于其厚度的方式实现。 为了泵浦辐射的目的，第一侧面以透明的方式体现。 光泵源相对于有源元件的布置及其方向图，使得至少一部分泵浦辐射沿着其宽度以Z字形方式通过全内反射扩散在有源元件内部 从第二侧面。

公开(公告)号：US20040052280A1

公开(公告)日：2004-03-18

申请号：US10242055

申请日：2002-09-12

发明人： Robert Rex Rice

IPC分类号： H01S003/04

CPC分类号： H01S5/02423 ,  H01S3/0941 ,  H01S5/02264 ,  H01S5/4025 ,  H01S5/405

摘要： The laser diode arrays with removable linear laser diode bars and the methods of removing and replacing linear laser diode bars of the present invention provide easy and immediate removal of individual linear laser diode bars in laser diode arrays. The laser diode array is at least partially made of a plurality of removable linear laser diode bars and a plurality of spacers, such that each removable linear laser diode bar is disposed between a respective pair of spacers. A linear laser diode bar may be slideably removed from between the respective pair of spacers in the laser diode array without breaking any mechanical connection between the removable linear laser diode bar and the respective pair of spacers. A replacement linear laser diode bar may then be slideably inserted between the respective pair of spacers without forming a mechanical connection between the replacement linear laser diode bar and the spacers.

摘要翻译： 具有可移除线性激光二极管条的激光二极管阵列以及本发明的去除和替代线性激光二极管条的方法提供了在激光二极管阵列中简单且立即去除各个线性激光二极管条的方法。 激光二极管阵列至少部分地由多个可移除的线性激光二极管棒和多个间隔件制成，使得每个可移除的线性激光二极管棒设置在相应的一对间隔件之间。 线性激光二极管棒可以从激光二极管阵列中的相应的一对间隔件之间可滑动地移除，而不会破坏可拆卸的线性激光二极管棒和相应的一对间隔件之间的任何机械连接。 然后可以将替代的线性激光二极管棒可滑动地插入在相应的一对间隔件之间，而不需要在替换的线性激光二极管棒和间隔件之间形成机械连接。

公开(公告)号：US20040028098A1

公开(公告)日：2004-02-12

申请号：US10622641

申请日：2003-07-21

申请人： THE FURUKAWA ELECTRIC CO., LTD.

发明人： Jun Miyokawa ,  Yuichiro Irie ,  Etsuji Katayama ,  Kaoru Sekiguchi ,  Kiyokazu Tateno

IPC分类号： H01S003/04 ,  H01S005/00

CPC分类号： G02B6/4201 ,  G02B6/4202 ,  G02B6/4203 ,  G02B6/4204 ,  G02B6/4208 ,  G02B6/4237 ,  G02B6/4248

摘要： A semiconductor laser diode module in which a laser diode and an optical fiber are optically coupled with each other efficiently irrespective of an ambient temperature change within the laser diode module. The laser diode module includes a laser diode, an optical system including an optical fiber and a lens portion, a base configured to support the laser diode and at least a portion of the optical system, and a bottom plate configured to support the laser diode, the optical system, and the base. A portion of the base is made of a material having a first thermal expansion coefficient and the bottom plate is constructed of a material having a second thermal expansion coefficient, where the first thermal expansion coefficient is substantially equal to the second thermal expansion coefficient. The optical system is configured to receive and transmit a beam emitted from the laser diode through the lens portion to the optical fiber.

摘要翻译： 一种半导体激光二极管模块，其中激光二极管和光纤彼此光学耦合，而与激光二极管模块内的环境温度变化无关。 激光二极管模块包括激光二极管，包括光纤和透镜部分的光学系统，被配置为支撑激光二极管和至少一部分光学系统的基座以及被配置为支撑激光二极管的底板， 光学系统和基座。 基部的一部分由具有第一热膨胀系数的材料制成，并且底板由具有第二热膨胀系数的材料构成，其中第一热膨胀系数基本上等于第二热膨胀系数。 光学系统被配置为从激光二极管通过透镜部分发射到光纤的光束。

公开(公告)号：US20040005728A1

公开(公告)日：2004-01-08

申请号：US10611851

申请日：2003-07-03

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Gaku Sugahara ,  Yoshiaki Hasegawa ,  Akihiko Ishibashi ,  Toshiya Yokogawa

IPC分类号： H01S003/04 ,  H01S005/00 ,  H01L021/00

CPC分类号： H01S5/32341 ,  H01S5/0213 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/0425

摘要： The present invention provides a method for fabricating a nitride semiconductor laser device, which comprises a first step to form a multi-layered semiconductor on a substrate (101), the a multi-layered semiconductor containing at least an n-type nitride semiconductor layer (102), an active layer (105), and a p-type nitride semiconductor layer (108); a second step to expose the surfaces of the n-type nitride semiconductor layer (102) and the p-type nitride semiconductor layer (108) at different heights by selectively etching the multi-layered semiconductor; a third step to cover the surface of the multi-layered semiconductor, including the exposed surfaces of the n-type nitride semiconductor layer (102) and the p-type nitride semiconductor layer (108), with an insulating film (109) that has a thickness greater than the difference in levels between the exposed surface of the n-type nitride semiconductor layer (102) and the outermost surface of the p-type nitride semiconductor layer (108); a fourth step to flatten the surface of the insulating film (109); and a fifth step to form an n-type electrode (111) and a p-type electrode (110) that are electrically connected to the n-type nitride semiconductor layer (102) and the p-type nitride semiconductor layer (108), respectively, through the insulating film (109). This method makes it possible to obtain a nitride semiconductor laser device that is highly reliable and exhibits an excellent heat diffusing property.

摘要翻译： 本发明提供了一种制造氮化物半导体激光器件的方法，其包括在衬底（101）上形成多层半导体的第一步骤，至少包含n型氮化物半导体层（ 102），有源层（105）和p型氮化物半导体层（108）; 通过选择性地蚀刻多层半导体而使n型氮化物半导体层（102）和p型氮化物半导体层（108）的表面以不同的高度曝光的第二步骤; 包括具有绝缘膜（109）的包括n型氮化物半导体层（102）和p型氮化物半导体层（108）的露出表面的多层半导体的表面的第三步骤， 厚度大于n型氮化物半导体层（102）的露出表面与p型氮化物半导体层（108）的最外表面之间的电平差; 使绝缘膜（109）的表面平坦化的第四工序; 以及形成与n型氮化物半导体层（102）和p型氮化物半导体层（108）电连接的n型电极（111）和p型电极（110）的第五工序， 分别通过绝缘膜（109）。 该方法可以获得高可靠性并且具有优异的散热性能的氮化物半导体激光器件。

公开(公告)号：US20030231690A1

公开(公告)日：2003-12-18

申请号：US10173513

申请日：2002-06-15

发明人： Mark McDonald

IPC分类号： H01S003/04 ,  H01S003/082 ,  H01S003/00

CPC分类号： G02B6/2746 ,  G02F1/0147 ,  Y10S372/703

摘要： Methods and apparatus for optimizing feedback suppression of optical isolators when used with variable wavelength light sources. The methods comprise positioning an optical isolator in a light beam, and adjusting feedback suppression by the optical isolator according to wavelength of the light beam. Adjusting the feedback suppression may comprise adjusting temperature of the optical isolator or a non-reciprocal rotator associated with the isolator.

摘要翻译： 用于可变波长光源时优化光隔离器的反馈抑制的方法和装置。 所述方法包括将光隔离器定位在光束中，并且根据光束的波长来调整光隔离器的反馈抑制。 调整反馈抑制可以包括调整光隔离器或与隔离器相关联的不可逆旋转器的温度。

公开(公告)号：US20030231675A1

公开(公告)日：2003-12-18

申请号：US10446502

申请日：2003-05-28

发明人： Sung-Soo Park

IPC分类号： H01S003/10 ,  H01S003/04 ,  H01S003/00 ,  H01S005/00

CPC分类号： H01S5/02276 ,  H01L2224/48091 ,  H01L2224/49111 ,  H01L2224/49175 ,  H01L2924/19107 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/0427 ,  H01L2924/00014

摘要： A laser module for transmitting/receiving digital signals using a laser diode as an optical source is disclosed. The input end of the laser module is provided with a low pass filter, such that the low pass filter makes a 3 dB bandwidth of frequency response transferred from the input pins to the laser diode to be equal or less than the on-state relaxation oscillation frequency of the laser diode, wherein the overshoot is minimized by adjusting a relative amount of the frequency component input to the laser diode.

摘要翻译： 公开了一种使用激光二极管作为光源发送/接收数字信号的激光模块。 激光模块的输入端设置有低通滤波器，使得低通滤波器使得从输入引脚传输到激光二极管的频率响应的3dB带宽等于或小于导通状态弛豫振荡 激光二极管的频率，其中通过调节输入到激光二极管的频率分量的相对量来使过冲最小化。

公开(公告)号：US20030231666A1

公开(公告)日：2003-12-18

申请号：US10173355

申请日：2002-06-15

发明人： Andy Daiber ,  Mark McDonald

IPC分类号： H01S003/04

CPC分类号： H01S5/141 ,  H01S5/02248 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/0683 ,  H01S5/0687

摘要： Laser apparatus and methods that use active thermal adjustment of an external laser cavity to minimize losses and provide wavelength stability and provide wavelength tuning. The apparatus comprise a thermally conductive platform, a gain medium thermally coupled to the platform, the gain medium having a first facet emitting a first light beam from the first facet, and a reflective element positioned in the first light beam and coupled to the platform, the reflective element and the second facet defining an external laser cavity. The reflective element is mounted on the platform and may be thermally coupled to the platform. Selective thermal control of the external cavity optical path length during laser operation is provided by heating and cooling of the thermally conductive platform.

摘要翻译： 激光设备和方法，其使用外部激光腔的主动热调节来最小化损耗并提供波长稳定性并提供波长调谐。 所述装置包括导热平台，与所述平台热耦合的增益介质，所述增益介质具有从所述第一小面发射第一光束的第一小面和位于所述第一光束中并耦合到所述平台的反射元件， 所述反射元件和所述第二刻面限定外部激光腔。 反射元件安装在平台上并且可以热耦合到平台。 通过加热和冷却导热平台来提供激光操作期间外腔光程长度的选择性热控制。

公开(公告)号：US20030214986A1

公开(公告)日：2003-11-20

申请号：US10372836

申请日：2003-02-26

申请人： NEC CORPORATION, KONOSHIMA CHEMICAL COMPANY, LTD.

发明人： Hikaru Kouta ,  Yoshikazu Suzuki ,  Shuetsu Kudo ,  Masaki Tsunekane ,  Katsuji Mukaihara ,  Takagimi Yanagitani ,  Hideki Yagi

IPC分类号： H01S003/04 ,  H01S003/14

CPC分类号： H01S3/061 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/08095 ,  H01S3/0941 ,  H01S3/09415

摘要： As a composite laser rod capable of satisfying the positional stability and output stability of a laser beam, a laser rod in which a laser active element is doped is intimately inserted into a hollow portion of a non-doped ceramic pipe that has a crystal structure the same as the laser rod followed by baking so as to remove a gap and strain at an interface between the laser rod and the ceramic pipe after the baking further followed by polishing a surface of the ceramic pipe to form a ceramic skin layer, and thereby a composite laser rod is formed. In the composite laser rod, an influence due to fluctuation in the cooling capacity of cooling water or a heat sink is averaged by a non-doped skin layer, temperature fluctuation of the laser rod is suppressed, and an influence of vibration from the cooling water or a cooling fan can be suppressed. When the refractive index of the laser rod is made higher than that of the ceramic pipe, a high efficiency oscillation can be realized, and furthermore when the thermal conductivity of the ceramic pipe is made higher than that of the laser rod, the thermal lens effect can be alleviated.

公开(公告)号：US20030210719A1

公开(公告)日：2003-11-13

申请号：US10431511

申请日：2003-05-08

申请人： Rohm, Co. Ltd.

发明人： Takeshi Yamamoto ,  Masayoshi Muranishi

IPC分类号： H01S003/04 ,  H01S005/00 ,  H01S003/08

CPC分类号： H01S5/02212 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01S5/02276 ,  H01S5/024 ,  H01L2924/00014 ,  H01L2924/00

摘要： A stem is formed by fixing two leads to a base having a planar shape that is substantially circular to be remote from one diameter thereof by a specified distance and by providing a heat sink onto one surface side of the base to have a surface that is parallel to the two leads and that is perpendicular to the base. A laser chip is mounted onto one surface of the heat sink and a periphery thereof is covered by a cap. The heat sink is fixedly attached such that an emitting portion of the light of the laser chip becomes in center of the base. It is accordingly possible to obtain a semiconductor laser of an arrangement having a small outer diameter and that may be easily manufactured at low cost while increasing the size of the heat sink for improving the heat radiation properties even if the laser chip has a large chip size and a large heat generating in a high output laser chip, and accordingly an optical pickup of thin type.

摘要翻译： 通过将两根导线固定到具有基本上圆形的基底的基座上形成一个杆，所述基座基本上是圆形的，以远离其一个直径一定距离，并且通过在基座的一个表面侧上设置散热片以具有平行的表面 到两个引线，并且垂直于基座。 激光芯片安装在散热器的一个表面上，其周边被盖子覆盖。 散热器固定地附接，使得激光芯片的光的发射部分变成基部的中心。 因此，可以获得具有小外径并且可以容易地以低成本制造的半导体激光器，同时增加用于提高散热性能的散热器的尺寸，即使激光芯片具有大的芯片尺寸 并且在高输出激光芯片中产生大的热量，并且因此具有薄型的光学拾取器。

公开(公告)号：US20030206568A1

公开(公告)日：2003-11-06

申请号：US10452667

申请日：2003-05-30

申请人： The Regents of the University of California

发明人： Brian J. Comaskey ,  Earl R. Ault ,  Thomas C. Kuklo

IPC分类号： H01S003/04 ,  H01S003/20 ,  H01S003/091 ,  H01S003/094

CPC分类号： H01S3/20

摘要： A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid media exhibits energy storage times longer than or comparable to the thermal optical response time of the liquid. A circulation system that provides a closed loop for mixing and circulating the lasing liquid into and out of the optical cavity includes a pump, a diffuser, and a heat exchanger. A liquid flow gain cell includes flow straighteners and flow channel compression.

摘要翻译： 高平均功率，低光学失真激光增益介质基于流动的液体介质。 具有定制辐照度的二极管激光泵浦装置激发液体介质内的激光活性原子，离子或分子。 液体介质的激光活性组分表现出比液体的热光学响应时间更长或相当的能量储存时间。 提供用于将激光液体混合并循环到光腔中的闭环的循环系统包括泵，扩散器和热交换器。 液体流增益池包括流动矫直机和流动通道压缩。