公开(公告)号：US20040264539A1

公开(公告)日：2004-12-30

申请号：US10608327

申请日：2003-06-27

发明人： Raghuram Narayan

IPC分类号： H01S003/08 ,  H01S003/04

CPC分类号： H01S5/141 ,  H01S5/0612 ,  H04B10/504 ,  H04B10/572

摘要： External cavity optical transmitters are disclosed which include a gain chip and a mirror that define an optical cavity. The transmitters further include a modulator operated at or near the same temperature as the gain chip. In some examples, the optical transmitters are temperature controlled to optimize the efficiency and wavelength stability thereof, while maintaining acceptable chirp performance of the modulator. In some examples, the optical transmitters include an electro-optic module disposed within the optical cavity to change the path length thereof so that the efficiency and wavelength stability of the transmitter is optimized.

摘要翻译： 公开了外腔光发射机，其包括限定光腔的增益芯片和反射镜。 发射器还包括在增益芯片处于或接近相同温度的调制器。 在一些示例中，光发射机被温度控制以优化其效率和波长稳定性，同时保持调制器的可接受的啁啾性能。 在一些示例中，光发射机包括设置在光腔内的电光模块，以改变其路径长度，从而优化发射机的效率和波长稳定性。

公开(公告)号：US20040264530A1

公开(公告)日：2004-12-30

申请号：US10607758

申请日：2003-06-27

申请人： Honeywell International Inc.

发明人： Jae-Hyun Ryou ,  Michael D. Ringle ,  Yue Liu

IPC分类号： H01S005/00 ,  H01S003/04

CPC分类号： H01S5/18308 ,  H01S5/02461 ,  H01S5/0282 ,  H01S5/0425 ,  H01S5/18311 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/18377 ,  H01S5/2063 ,  H01S2301/176

摘要： A VCSEL structure having thermal management. The structure may be designed for conveyance of heat from the active layer primarily through one of the mirrors to a material that removes heat externally away from the structure. Thermal management may involve various configurations of heat removal for various VCSEL structures. The structures may be designed to effect such respective configurations for heat removal.

公开(公告)号：US20040264519A1

公开(公告)日：2004-12-30

申请号：US10602514

申请日：2003-06-24

发明人： John Alan Morrell

IPC分类号： H01S003/04

CPC分类号： B41J29/377

摘要： A cooling system for an imaging device having a light source for exposing a media in which the cooling system comprises a filter for purifying coolant flowing through the cooling system and a filter bypass for limiting the purity of the coolant. In this way, the coolant, such as water, is prevented from becoming too pure, such that it begins to attack or etch the metal components in the coolant loop in the cooling system. This problem typically arises in the closed loop DI-filtered systems is that the water coolant becomes too pure. It is known that if water becomes more pure than approximately 10 MegaOhms (Mnull), referring to the water's resistance to electrical current which increases with increasing purity, the water can actually begin to etch metal such as copper in copper pipes of the loop.

摘要翻译： 该系统具有用于净化冷却剂的过滤器（124），例如 水，在冷却系统中流动。 过滤器旁路（150）限制冷却液的纯度。 冷却器（120）用于从冷却剂中除去热量。 循环泵将冷却剂移动通过冷却器回路。 系统的冷却器回路是闭环。 过滤器旁路具有用于控制通过旁路的冷却剂流动的阀。 还包括用于控制冷却剂的纯度的方法的独立权利要求。

公开(公告)号：US20040258116A1

公开(公告)日：2004-12-23

申请号：US10694395

申请日：2003-10-28

申请人： Samsung Electronics Co., Ltd.

发明人： Young-ju Kim ,  Pyong-yong Seong ,  Chul-ho Jeon ,  Jong-ryull Kim ,  Kyoung-hwan Park ,  Jun-hyuk Lee

IPC分类号： H01S003/00 ,  H01S003/04

CPC分类号： H01S5/042 ,  H01S5/06804 ,  H01S5/06825 ,  H01S5/0683

摘要： Provided is a laser diode driving circuit which prevents low optical output power of a laser diode at high ambient temperature, and prevents damage to the laser diode at low ambient temperature by adjusting the limit of a laser diode driving current, which is input to a laser diode, based on an optical output power characteristic that decreases optical output power as the ambient temperature decreases. Such a laser diode driving circuit includes a laser diode driving unit, which outputs a laser diode driving current and a laser diode protection unit, which sets the limit of the laser diode driving current output from the laser diode driving unit and increases the limit of the laser diode driving current as the ambient temperature of the laser diode increases.

摘要翻译： 提供了一种激光二极管驱动电路，其在高环境温度下防止激光二极管的低光输出功率，并且通过调节激光二极管驱动电流的极限来防止在低环境温度下损坏激光二极管，激光二极管驱动电流的输入被激活 二极管，基于随着环境温度降低而降低光输出功率的光输出功率特性。 这种激光二极管驱动电路包括输出激光二极管驱动电流的激光二极管驱动单元和激光二极管保护单元，其设定从激光二极管驱动单元输出的激光二极管驱动电流的极限，并增加 激光二极管驱动电流随着激光二极管环境温度的升高而增加。

公开(公告)号：US20040258110A1

公开(公告)日：2004-12-23

申请号：US10464121

申请日：2003-06-18

申请人： Photodigm, Inc.

发明人： Sarvotham M. Bhandarkar

IPC分类号： H01S003/04 ,  H01S003/08

CPC分类号： G02B6/4221 ,  G02B6/4204 ,  G02B6/423

摘要： A planar wafer-level packaging method is provided for a laser and a microlens. Light from the laser is directed and shaped by the microlens to couple into an external light guide. A plurality of such assemblies, each comprising a laser and a microlens may be assembled on a single planar substrate. A tapered surface is formed on the microlens. The microlens may be formed from a silicon substrate. The angle of the tapered surface causes an accurate cone or pyramid shape. The tapered surface is formed such that the axis of the cone or pyramid is aligned with the optical axis of the lens. The lens may then be aligned with the optical axis of the laser. A light guide receptacle is formed with a tapered surface that matches the tapered surface of the microlens. The tapered surface of the receptacle is formed such that the axis of the cone or pyramid is aligned with the optical axis of the receptacle. The receptacle may then be passively aligned with the microlens by mating the tapered surfaces.

摘要翻译： 提供了一种用于激光和微透镜的平面晶片级封装方法。 来自激光器的光由微透镜引导和成形，以耦合到外部光导中。 每个包括激光器和微透镜的多个这样的组件可以组装在单个平面衬底上。 在微透镜上形成锥形表面。 微透镜可以由硅衬底形成。 锥形表面的角度产生精确的锥形或金字塔形状。 锥形表面形成为使得锥体或金字塔的轴线与透镜的光轴对准。 然后可以将透镜与激光的光轴对准。 导光容器形成有与微透镜的锥形表面相匹配的锥形表面。 容器的锥形表面形成为使得锥体或金字塔的轴线与容器的光轴对准。 然后可以通过配合锥形表面将容器与微透镜无源对准。

公开(公告)号：US20040247004A1

公开(公告)日：2004-12-09

申请号：US10685910

申请日：2003-10-15

发明人： Yong-Chan Keh ,  Mun-Kue Park

IPC分类号： H01S003/04 ,  H01S005/00

CPC分类号： H01S5/02212 ,  H01S5/02244 ,  H01S5/02248 ,  H01S5/0683

摘要： An optical element module package with a TO-can structure is disclosed. The module includes a laser diode for projecting optical signals and a photo diode for monitoring the optical signals projected from the laser diode. The package includes a stem having a first through-hole formed in a long-hole shape parallel to the diametrical direction of the stem, the first through-hole extending through the stem from one side to the other; and a plurality of leads arranged in a row through the first through-hole. The first through-hole is filled with a sealant of a glass material so that the stem and the leads are fixed.

摘要翻译： 公开了具有TO-can结构的光学元件模块封装。 该模块包括用于投射光信号的激光二极管和用于监测从激光二极管投影的光信号的光电二极管。 所述包装件包括具有平行于所述杆的直径方向形成为长孔形状的第一通孔的杆，所述第一通孔从所述杆从一侧延伸到另一侧; 以及通过所述第一通孔排列成一排的多个引线。 第一通孔填充有玻璃材料的密封剂，使得杆和引线固定。

公开(公告)号：US20040247003A1

公开(公告)日：2004-12-09

申请号：US10484048

申请日：2004-07-27

发明人： Ian Peter Mercer

IPC分类号： H01S003/04

CPC分类号： H01S3/042 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/1641 ,  H01S3/1643 ,  H01S3/1675

摘要： A laser apparatus includes pumping means to emit pumping radiation, a gain medium to absorb the radiation and emit a laser light, and cooling means to cool the gain medium. The cooling means includes a coolant comprising of D2O.

摘要翻译： 激光装置包括用于发射泵浦辐射的泵送装置，用于吸收辐射并发射激光的增益介质，以及冷却增益介质的冷却装置。 冷却装置包括由D 2 O组成的冷却剂。

公开(公告)号：US20040240499A1

公开(公告)日：2004-12-02

申请号：US10845242

申请日：2004-05-14

申请人： Sharp Kabushiki Kaisha

发明人： Makoto Tsuji

IPC分类号： H01S003/04 ,  H01S005/00

CPC分类号： H01S5/02212 ,  H01S5/0222

摘要： A semiconductor laser device aimed to be reduced in size and that can maintain high position accuracy, and a fabrication method of such a semiconductor laser device are achieved. A semiconductor laser device includes a stem as a base member, and a cap member. The stem includes a main unit having a reference plane, and a heat sink platform as an element mount unit, located on the reference plane for mounting a laser element. The cap member is set on the reference plane of the stem so as to cover the heat sink platform. A hole is formed at the sidewall of the cap member facing the heat sink platform. Fixation between the cap member and the stem is established by fixedly attaching the portion at the inner side of the sidewall of the cap member adjacent the hole to the outer circumferential plane of a heat sink platform.

摘要翻译： 旨在减小尺寸并且可以保持高位置精度的半导体激光装置，并且实现了这种半导体激光装置的制造方法。 半导体激光装置包括作为基底构件的杆和帽构件。 杆包括具有参考平面的主单元和作为元件安装单元的散热平台，位于用于安装激光元件的参考平面上。 帽构件设置在杆的参考平面上，以覆盖散热器平台。 在帽构件的面向散热器平台的侧壁处形成有孔。 通过将帽构件的侧壁的内侧的部分邻近孔附接到散热器平台的外周平面来建立盖构件和杆之间的固定。

公开(公告)号：US20040239818A1

公开(公告)日：2004-12-02

申请号：US10802045

申请日：2004-03-17

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Tooru Sugiyama ,  Ken Ito

IPC分类号： H01S003/10 ,  H01S003/13 ,  H01S003/04 ,  H04N003/22 ,  H04N003/26

CPC分类号： H04N9/3129 ,  H04N9/315

摘要： A video display unit according to the present invention uses a plurality of semiconductor lasers as one light source. The unit lowers all laser outputs when lowering the brightness of the semiconductor lasers and realizes a long life, and stops one of the semiconductor lasers when realizing a low power consumption mode. Thus, a long life is realized when lowering all laser outputs, and a low power consumption is realized when stopping some semiconductor lasers.

摘要翻译： 根据本发明的视频显示单元使用多个半导体激光器作为一个光源。 当降低半导体激光器的亮度并且实现长寿命时，该单元降低所有激光输出，并且在实现低功耗模式时停止其中一个半导体激光器。 因此，在降低所有激光输出时实现长寿命，并且在停止一些半导体激光器时实现低功耗。

公开(公告)号：US20040233946A1

公开(公告)日：2004-11-25

申请号：US10797571

申请日：2004-03-11

发明人： Akihiro Moto

IPC分类号： H01S003/04 ,  H01S005/00

CPC分类号： H01S5/02216 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01S5/02248 ,  H01S5/02268 ,  H01S5/02276 ,  H01S5/02284 ,  H01S5/02476 ,  H01S5/0427 ,  H01S5/06226 ,  H01L2924/00014

摘要： The laser diode of the present invention is mounted on the heat sink made of insulating material such as aluminum nitride (AlN). On the heat sink, a metal film, evaporated gold film, is provided and the laser diode is mounted on the heat sink such that the anode electrode of the laser diode faces and is in contact with the metal film. The heat sink is mounted on the grounded metal member, thus the metal member, the heat sink and the metal film forms an capacitor. The bias for the laser diode is provided via the metal film, thereby stabilizing the bias supply even when the operational frequency for the laser diode is over 10 Gbps.

摘要翻译： 本发明的激光二极管安装在由诸如氮化铝（AlN）的绝缘材料制成的散热器上。 在散热器上，提供金属膜，蒸发的金膜，激光二极管安装在散热器上，使得激光二极管的阳极电极面对并与金属膜接触。 散热器安装在接地的金属构件上，因此金属构件，散热器和金属膜形成电容器。 激光二极管的偏置通过金属膜提供，从而即使当激光二极管的工作频率超过10Gbps时也稳定偏压电源。