公开(公告)号：US20060171436A1

公开(公告)日：2006-08-03

申请号：US11391651

申请日：2006-03-27

申请人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

发明人： Koji Tojo ,  Satoshi Irikuchi ,  Kazuma Watanabe ,  Tunehiro Sugimoto ,  Ichiro Fukushi ,  Naoya Ishigaki ,  Koji Inoue

IPC分类号： H01S5/00

CPC分类号： H01S3/0627 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1312 ,  H01S5/06223 ,  H01S5/068 ,  H01S5/06817 ,  H01S2301/02 ,  H01S2301/04

摘要： A solid laser apparatus has either a combination of a lowpass filter (9c) and a highpass filter (9d) or a bandpass filter 9f provided in its output control circuit (8, 9, 10) for increasing the gain and adjusting the phase of a signal in the vicinity of the relaxation oscillating frequency. Also, a solid laser apparatus has the phase shift circuit (9g) provided in its output control circuit (8,9,10) for advancing the phase of a signal in the vicinity of the relaxation oscillating frequency thereof. Moreover, a solid laser apparatus has a pseudo notch filter (9h), which is arranged for the gain to have a local minimum at the relaxation oscillating frequency of the solid laser apparatus, provided in the output control circuit (8,9,10) so that the peak of the gain transmission characteristic of the nonlinear optical device (4) or of a combination of the nonlinear optical device (4) and the microchip laser crystal (3) is offset.

摘要翻译： 固体激光装置具有在其输出控制电路（8,9,10）中提供的低通滤波器（9c）和高通滤波器（9d）或带通滤波器9f的组合，用于增加增益并调整 在松弛振荡频率附近的信号的相位。 此外，固体激光装置具有设置在其输出控制电路（8,9,10）中的相移电路（9g），用于使其松弛振荡频率附近的信号的相位前进。 此外，固体激光装置具有假陷波滤波器（9h），该伪陷波滤波器（9h）被设置为增益在固体激光装置的弛豫振荡频率处具有局部最小值，设置在输出控制电路（8,9,10 ），使得非线性光学器件（4）的增益透射特性的峰值或非线性光学器件（4）和微芯片激光晶体（3）的组合的峰值被偏移。

公开(公告)号：US20060050752A1

公开(公告)日：2006-03-09

申请号：US10527355

申请日：2004-03-30

申请人： Nobuhiro Nunoya ,  Yasuo Shibata ,  Naoki Fujiwara ,  Nobuhiro Kikuchi ,  Yuichi Tomori

发明人： Nobuhiro Nunoya ,  Yasuo Shibata ,  Naoki Fujiwara ,  Nobuhiro Kikuchi ,  Yuichi Tomori

IPC分类号： H01S5/00 ,  H01S3/08

CPC分类号： G02B6/12007 ,  G02B6/122 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4202 ,  H01S5/026 ,  H01S5/06206 ,  H01S5/06256 ,  H01S5/0654 ,  H01S5/068 ,  H01S5/101 ,  H01S5/1017 ,  H01S5/1025 ,  H01S5/1085 ,  H01S5/1215 ,  H01S5/1221 ,  H01S5/124 ,  H01S5/125 ,  H01S5/2205 ,  H01S5/227 ,  H01S2301/173

摘要： An optical semiconductor device and optical semiconductor integrated circuit are provided by combining, on a semiconductor substrate, materials having different refractive indices and different temperature dependence of the refractive indices. In particular, it becomes possible to control the temperature dependence of the oscillation wavelength with a propagating region having a material and/or structure whose temperature dependence of the refractive index is different from that of a gain region of the semiconductor laser. In addition, they can be configured to have a plurality of interfaces formed along the waveguide direction of the optical waveguide so that the light reflected off the first interface is weakened by the light reflected from the remaining interfaces. Also, they can be configured with the interfaces inclined to the propagating direction so that the waveguide loss due to the reflection and refraction between the optical waveguides whose refractive indices differ from each other can be reduced.

摘要翻译： 通过在半导体衬底上组合具有不同折射率和不同的折射率温度依赖性的材料来提供光学半导体器件和光学半导体集成电路。 特别地，可以通过具有折射率的温度依赖性与半导体激光器的增益区域的温度依赖性的材料和/或结构的传播区域来控制振荡波长的温度依赖性。 此外，它们可以被配置为具有沿着光波导的波导方向形成的多个界面，使得从第一界面反射的光被从其余界面反射的光减弱。 此外，它们可以被配置为具有相对于传播方向倾斜的界面，使得可以减少由于折射率彼此不同的光波导之间的反射和折射引起的波导损耗。

公开(公告)号：US06990292B2

公开(公告)日：2006-01-24

申请号：US11083528

申请日：2005-03-18

申请人： Makibi Nakamura

发明人： Makibi Nakamura

IPC分类号： G03B13/36

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： Image projection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A laser diode is driven to generate laser beams that are condensed into parallel laser beams by a condenser. These parallel laser beams are applied to a hologram plate and thereby diffracted. The diffracted laser beams interfere with each other, to produce a hologram image with sufficient contrast. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode.

摘要翻译： 图像投影装置，其中，当快门被操作时控制聚焦透镜，使得当来自相机信号处理电路的亮度信号被提供给自动聚焦检测电路时获得的对比度信号可能变得最大。 激光二极管被驱动以产生通过冷凝器冷凝成平行激光束的激光束。 将这些平行的激光束施加到全息板上，从而衍射。 衍射激光束彼此干涉，产生具有足够对比度的全息图像。 因此，可以在对比度检测系统的自动聚焦模式或手动对焦模式中进行令人满意的聚焦。

公开(公告)号：US20050286571A1

公开(公告)日：2005-12-29

申请号：US11207042

申请日：2005-08-18

申请人： Jeffrey Korn

发明人： Jeffrey Korn

IPC分类号： A61B5/00 ,  A61B18/24 ,  H01S3/08 ,  H01S3/1055 ,  H01S5/068 ,  H01S5/10 ,  H01S5/14 ,  H01S3/10

CPC分类号： H01S3/08 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/02007 ,  A61B18/24 ,  H01S3/1055 ,  H01S5/068 ,  H01S5/1039 ,  H01S5/141 ,  H01S5/146

摘要： A laser system for a spectroscopic catheter system utilizes an overmoded cavity in order to reduce mode hoping induced power fluctuations during wavelength scanning. In the preferred embodiment, a semiconductor gain medium is used to reduce cost. A fiber pigtail is used to define the laser cavity, which has a tight cavity mode spacing of less that 15 Gigahertz. A diffraction grating is used as the tuning element. A cylindrical lens is used to reduce alignment tolerances and thereby increase manufacturability.

摘要翻译： 用于分光导管系统的激光系统利用过模腔来减少波长扫描期间的模式希望感应功率波动。 在优选实施例中，使用半导体增益介质来降低成本。 光纤尾纤用于定义激光腔，其腔密度模式间隔小于15千兆赫兹。 使用衍射光栅作为调谐元件。 使用圆柱透镜来降低对准公差，从而提高可制造性。

公开(公告)号：US06973263B2

公开(公告)日：2005-12-06

申请号：US11084465

申请日：2005-03-18

申请人： Makibi Nakamura

发明人： Makibi Nakamura

IPC分类号： G02B5/32 ,  G02B7/10 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B21/26 ,  H01S5/068 ,  H04N5/232 ,  G03B13/36

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： Image protection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A laser diode is driven to generate laser beams that are condensed into parallel laser beams by a condenser. These parallel laser beams are applied to a hologram plate and thereby diffracted. The diffracted laser beams interfere with each other, to produce a hologram image with sufficient contrast. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode.

摘要翻译： 图像保护装置，其中，当快门被操作时控制聚焦透镜，使得当将来自相机信号处理电路的亮度信号提供给自动聚焦检测电路时获得的对比度信号可能变得最大。 激光二极管被驱动以产生通过冷凝器冷凝成平行激光束的激光束。 将这些平行的激光束施加到全息板上，从而衍射。 衍射激光束彼此干涉，产生具有足够对比度的全息图像。 因此，可以在对比度检测系统的自动聚焦模式或手动对焦模式中进行令人满意的聚焦。

公开(公告)号：US20050185681A1

公开(公告)日：2005-08-25

申请号：US11002731

申请日：2004-12-01

申请人： Vladimir Ilchenko ,  Danny Eliyahu

发明人： Vladimir Ilchenko ,  Danny Eliyahu

IPC分类号： H01S3/00 ,  H01S3/10 ,  H01S5/065 ,  H01S5/068 ,  H01S5/10 ,  H01S5/14

CPC分类号： H01S5/146 ,  H01S3/005 ,  H01S5/0085 ,  H01S5/0656 ,  H01S5/068 ,  H01S5/1071 ,  H03B17/00

摘要： Devices and techniques for achieving continuous tuning of coupled opto-electronic oscillators with signal filtering in RF or microwave frequencies by optical filtering via two optical resonators in two separate optical paths.

摘要翻译： 用于通过在两个单独的光路中经由两个光学谐振器的光学滤波来实现在RF或微波频率中的信号滤波的耦合光电子振荡器的连续调谐的装置和技术。

公开(公告)号：US06748181B2

公开(公告)日：2004-06-08

申请号：US09953860

申请日：2001-09-18

申请人： Makoto Miki ,  Toru Matsuyama ,  Hiroki Kanesaka

发明人： Makoto Miki ,  Toru Matsuyama ,  Hiroki Kanesaka

IPC分类号： H04B1004

CPC分类号： H04B10/564 ,  H01S5/068 ,  H01S5/06804 ,  H01S5/0683 ,  H04B10/502 ,  H04B10/504

摘要： The present invention alms at providing a low cost optical transmitter capable of controlling, with a high precision, fluctuations in optical output characteristic of a semiconductor light emitting device such as due to a temperature change. To this end, the optical transmitter of the present invention is constituted to comprise; a semiconductor light emitting device; a driving circuit for supplying a driving current to the semiconductor light emitting device; an optical output detecting section for detecting an optical output power of the semiconductor light emitting device; a storing section for storing temperature characteristic information including temperature characteristic data concerning the driving current to be supplied to the semiconductor light emitting device and temperature characteristic data concerning the optical output detecting section; a temperature detecting section for detecting temperature; and a controlling section for controlling the operation of the driving circuit, based on the temperature characteristic information read out from the storing section corresponding to the temperature detected by the temperature detecting section and based on the detection result of the optical output detecting section.

摘要翻译： 本发明在提供能够高精度地控制诸如由于温度变化导致的半导体发光器件的光输出特性的波动的低成本光发射机的应用。 为此，本发明的光发射机构成为： 半导体发光器件; 用于向半导体发光器件提供驱动电流的驱动电路; 光输出检测部分，用于检测半导体发光器件的光输出功率; 用于存储温度特性信息的存储部分，包括关于要提供给半导体发光器件的驱动电流的温度特性数据和关于光输出检测部分的温度特性数据; 用于检测温度的温度检测部分; 以及控制部，其基于从所述存储部读出的与由所述温度检测部检测出的温度对应的温度特性信息，基于所述光输出检测部的检测结果来控制所述驱动电路的动作。

公开(公告)号：US20030147050A1

公开(公告)日：2003-08-07

申请号：US10203117

申请日：2003-01-21

发明人： Makibi Nakamura

IPC分类号： G03B021/00

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： The present invention relates to an image projection apparatus, a projection image pattern, a laser drive apparatus and a camera apparatus fit for use with an electronic still camera for example. In the present invention, when a microcomputer 8 detects that a shutter release 9 is depressed, a focusing lens 3 is controlled so that a contrast signal obtained when a luminance signal from a camera signal processing circuit 6 is supplied to an auto focusing detection circuit 7 may become maximum. A control signal from the microcomputer 8 is supplied to a laser driver 13, so that a laser diode 14 is driven to generate light of laser beams only while this control signal is supplied to the laser driver. The light of laser beams thus generated is further condensed into light of parallel laser beams by a condenser 15. These parallel laser beams are applied to a hologram plate 16 and thereby diffracted. The laser beams thus diffracted are caused to interfere with each other, whereby a hologram reproduced image 17 is reproduced. This makes it possible to project a hologram reproduced image with sufficient contrast onto an object by small power consumption. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode. At the same time, this apparatus can really be incorporated, for example, into a small electronic still camera with ease.

摘要翻译： 本发明涉及例如适用于电子静态照相机的图像投影装置，投影图像图案，激光驱动装置和照相机装置。 在本发明中，当微型计算机8检测到快门释放9被按下时，聚焦透镜3被控制成使得当将来自相机信号处理电路6的亮度信号提供给自动聚焦检测电路7时获得的对比度信号 可能会变得最大。 来自微型计算机8的控制信号被提供给激光驱动器13，使得激光二极管14被驱动以仅在该控制信号被提供给激光驱动器的同时产生激光束。 由此产生的激光束的光被冷凝器15进一步冷凝成平行激光束的光。这些平行的激光束被施加到全息图板16上，从而被衍射。 由此衍射的激光束彼此干涉，从而再现全息图再现图像17。 这使得可以通过小功耗将具有足够对比度的全息图再现图像投射到对象上。 因此，可以在对比度检测系统的自动聚焦模式或手动对焦模式中进行令人满意的聚焦。 同时，该装置可以真正地被并入，例如，容易地并入小型电子静态照相机中。

公开(公告)号：US20030142709A1

公开(公告)日：2003-07-31

申请号：US10348142

申请日：2003-01-21

申请人： Agilent Technologies, Inc.

发明人： Richard Mark Ash ,  Christopher Anthony Park

IPC分类号： H01S003/13 ,  H01S003/04

CPC分类号： H01S5/1021 ,  H01S5/02248 ,  H01S5/0607 ,  H01S5/068 ,  H01S5/06804 ,  H01S5/06837 ,  H01S5/0687 ,  H01S5/1017

摘要： The present invention relates to the control or stabilisation of the lasing wavelength of a source of laser radiation (8), comprising a semiconductor material laser (2), a substrate (4) to which the laser (2) is mounted, a resonant optical cavity (15) within the semiconductor material (16,18,20), the cavity (15) having an active medium (16) for generating laser radiation (8) and one or more gaps (28) in the semiconductor material (16,18,20) within the cavity (15), wherein the substrate (4) is deformable by the application of a mechanical stress (14) to vary the size of said gap(s) (28) in order to change the optical size of said gap(s) and hence to vary the wavelength of laser radiation (8) generated by the semiconductor laser (2).

摘要翻译： 本发明涉及激光辐射源（8）的激光波长的控制或稳定，其包括半导体材料激光器（2），安装有激光器（2）的基板（4），谐振光学 在半导体材料（16,18,20）内的空腔（15），空腔（15）具有用于在半导体材料（16,18）中产生激光辐射（8）和一个或多个间隙（28）的活性介质（16） 18），其中所述基底（4）可通过施加机械应力（14）而变形，以改变所述间隙（28）的尺寸，以便改变所述间隙的光学尺寸 所述间隙并因此改变由半导体激光器（2）产生的激光辐射（8）的波长。

公开(公告)号：US5488625A

公开(公告)日：1996-01-30

申请号：US131677

申请日：1993-10-05

申请人： Tomohiro Nakamori ,  Hiroshi Hashimoto ,  Soya Endo ,  Hitoshi Machino ,  Masanori Ishizu

发明人： Tomohiro Nakamori ,  Hiroshi Hashimoto ,  Soya Endo ,  Hitoshi Machino ,  Masanori Ishizu

IPC分类号： H01S5/024 ,  H01S5/026 ,  H01S5/028 ,  H01S5/042 ,  H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  H01S5/40 ,  H01S3/025

CPC分类号： H01S5/02453 ,  H01S5/026 ,  H01S5/4025 ,  H01S5/02212 ,  H01S5/0261 ,  H01S5/028 ,  H01S5/042 ,  H01S5/0612 ,  H01S5/068 ,  H01S5/06837 ,  H01S5/40 ,  H01S5/4037 ,  H01S5/4056

摘要： A semiconductor device includes a chip, a laser element formed on the chip and a heating element formed on the chip. The laser element is driven to emit a laser beam upon light-on of a laser. Upon light-off of a laser, switching is made so that the heating element is driven so as not to emit the laser beam in the normal laser beam emission direction by the laser element.

摘要翻译： 半导体器件包括芯片，形成在芯片上的激光元件和形成在芯片上的加热元件。 激光元件在激光器点亮时被驱动以发射激光束。 在激光的点灯时，进行切换，使得加热元件被驱动，以便不会由激光元件沿正常的激光束发射方向发射激光束。