公开(公告)号：US06801553B2

公开(公告)日：2004-10-05

申请号：US09988662

申请日：2001-11-20

申请人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Kenji Masuda ,  Akihiro Adachi ,  Yasunori Nishimura ,  Shinichi Takagi

发明人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Kenji Masuda ,  Akihiro Adachi ,  Yasunori Nishimura ,  Shinichi Takagi

IPC分类号： H01S313

CPC分类号： H01S5/0687 ,  H01S5/005 ,  H01S5/02248

摘要： A wavelength monitor comprises a cylindrical lens configured to allow a laser beam emitted from a semiconductor laser to pass therethrough, first and second photodetectors configured to receive the laser beam through the cylindrical lens, and a wavelength filter disposed in an optical path between the semiconductor laser and the first photodetector.

摘要翻译： 波长监视器包括被配置为允许从半导体激光器发射的激光束通过的柱面透镜，被配置为接收通过柱面透镜的激光束的第一和第二光电检测器，以及设置在半导体激光器之间的光路中的波长滤光器 和第一光电检测器。

公开(公告)号：US06639923B2

公开(公告)日：2003-10-28

申请号：US10012311

申请日：2001-12-12

申请人： Makoto Sato ,  Kenji Masuda ,  Akihiro Adachi ,  Yasunori Nishimura ,  Shinichi Takagi ,  Masao Imaki ,  Yoshihito Hirano

发明人： Makoto Sato ,  Kenji Masuda ,  Akihiro Adachi ,  Yasunori Nishimura ,  Shinichi Takagi ,  Masao Imaki ,  Yoshihito Hirano

IPC分类号： H01S5022

CPC分类号： H01S5/02252 ,  H01L2224/48091 ,  H01L2924/19107 ,  H01S5/02284 ,  H01S5/02296 ,  H01S5/0683 ,  H01S5/0687 ,  H01L2924/00014

摘要： A backward laser beam radiated from a laser diode is received in a photo diode, and an intensity of a forward laser beam radiated from the laser diode is adjusted according to the intensity of the received backward laser beam. The forward laser beam radiated from the laser diode is collimated in a first lens held by a lens holder, and a most portion of the forward laser beam is output through a package window inclined with respect to an optical axis of the laser diode. The remaining portion of the forward laser beam is reflected on the package window as a reflected laser beam and is transmitted through the first lens to be converged in a narrow area placed above the laser diode. A light shielding plate extending in a plane orthogonal to the optical axis is arranged in a wide area including the narrow area and shields the photo diode from the reflected laser beam from. Therefore, the intensity of the forward laser beam radiated from the laser diode is correctly adjusted. Also, the light shielding plate is not soldered to the laser diode but is fixed to lens fixing posts arranged to support the lens holder. Therefore, a driving current can be supplied to the laser diode through a bonding wire without being influenced by the light shielding plate.

公开(公告)号：US07301974B2

公开(公告)日：2007-11-27

申请号：US10477018

申请日：2001-05-08

申请人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nishimura

发明人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nishimura

IPC分类号： H01S3/13

CPC分类号： G01J9/00 ,  G01J4/04 ,  H01S5/02252 ,  H01S5/0687

摘要： An optical signal emitted from a semiconductor laser is converged by a lens and then received by a single uniaxial birefringent crystal having a C axis that is inclined at an angle other than 90 degrees against a laser optical axis to output an optical signal having a polarized wave component of constant intensity corresponding to the wavelength of the optical signal regardless of temperature changes. The optical signal has an ordinary ray vibrating in a direction perpendicular to a plane including both the C axis and the laser optical axis, and an extraordinary ray vibrating in a direction perpendicular to both the ordinary ray and the laser optical axis. A first main photo detector detects the intensity of a p-polarized component of the optical signal that has passed through a polarizer and a second photo detector directly receives the optical signal converged by the lens.

摘要翻译： 从半导体激光器发射的光信号由透镜会聚，然后由具有相对于激光光轴倾斜成90度以外的角度的C轴的单个单轴双折射晶体接收，以输出具有偏振波的光信号 对应于光信号的波长的恒定强度的分量，不管温度变化如何。 光信号具有在垂直于包括C轴和激光光轴的平面的方向振动的普通光线，以及在垂直于普通光线和激光光轴的方向上振动的异常光线。 第一主光电检测器检测已经通过偏振器的光信号的p偏振分量的强度，第二光检测器直接接收由透镜会聚的光信号。

公开(公告)号：US07148965B2

公开(公告)日：2006-12-12

申请号：US10477113

申请日：2002-12-12

申请人： Yasunori Nishimura ,  Shinichi Takagi

发明人： Yasunori Nishimura ,  Shinichi Takagi

IPC分类号： H01S5/22 ,  H01S5/687 ,  G01N21/27 ,  G01J3/51

CPC分类号： H01S5/0687 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01S5/005 ,  H01S5/02216 ,  H01S5/02252 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/02438 ,  H01L2924/00014

摘要： A wavelength filter is disposed between a laser diode and a photodiode that receives the rear-facet output light of the laser diode. Either a part on one side of an input or an output surface of the wavelength filter is bounded to a protrusion provided in a metal holder for holding the wavelength filter. As a result, a support structure is obtained that does not bring a damage on the wavelength filter caused by degradation of optical characteristics or temperature variation of the wavelength filter when support-fixing a wavelength filter having a complex refractive index crystal.

摘要翻译： 波长滤波器设置在激光二极管和接收激光二极管的后面输出光的光电二极管之间。 波长滤波器的输入或输出表面的一侧的一部分与设置在用于保持波长滤波器的金属保持器中的突起接合。 结果，获得了支撑结构，当支撑固定具有复合折射率晶体的波长滤光器时，不会由于波长滤光器的光学特性的劣化或温度变化而对波长滤波器造成损害。

公开(公告)号：US07659537B2

公开(公告)日：2010-02-09

申请号：US11336817

申请日：2006-01-23

申请人： Tsutomu Tezuka ,  Shinichi Takagi ,  Tomohisa Mizuno

发明人： Tsutomu Tezuka ,  Shinichi Takagi ,  Tomohisa Mizuno

IPC分类号： H01L31/00

CPC分类号： H01L21/2807 ,  H01L29/1054 ,  H01L29/4236 ,  H01L29/665 ,  H01L29/66613 ,  H01L29/7834

摘要： A field effect transistor comprises a source and a drain, and a channel layer of Si1-x-yGexCy crystal (1>x>0, 1>y≧0). Ge composition increases toward a drain end, in a vicinity of a source end of the channel layer.

摘要翻译： 场效应晶体管包括源极和漏极，以及Si1-x-yGexCy晶体（1> x> 0,1> y> = 0）的沟道层。 Ge组分在沟道层的源极端附近向漏极端增加。

公开(公告)号：US07489042B2

公开(公告)日：2009-02-10

申请号：US11324804

申请日：2006-01-04

申请人： Isao Oshima ,  Shinichi Takagi

发明人： Isao Oshima ,  Shinichi Takagi

IPC分类号： H01L33/00

CPC分类号： H01S5/02276 ,  H01L33/483 ,  H01L2224/48091 ,  H01S5/02212 ,  H01S5/06226 ,  H01L2924/00014

摘要： A stem for an optical element includes a base-like portion located on a portion of a package side surface of an eyelet, higher than the package side surface. A block is located on a surface of the base-like portion of the eyelet. An optical element mounting surface of the block projects outward, overhanging a side face of the base-like portion, close to lead electrodes which are inserted through holes of the eyelet, respectively, and sealed with sealing glass. High-frequency line substrates are located on the optical element mounting surface of the block, and Au films of the high-frequency line substrate are electrically connected to respective lead electrodes.

摘要翻译： 用于光学元件的杆包括位于孔眼的包装侧表面的高于包装侧表面的部分的基部状部分。 块体位于孔眼的基部部分的表面上。 块的光学元件安装面向外突出，突出于基部的侧面，靠近分别穿过孔眼的孔插入的引线电极，并用密封玻璃密封。 高频线基板位于块的光学元件安装面上，高频线基板的Au膜与各引线电极电连接。

公开(公告)号：US20070120134A1

公开(公告)日：2007-05-31

申请号：US11324804

申请日：2006-01-04

申请人： Isao Oshima ,  Shinichi Takagi

发明人： Isao Oshima ,  Shinichi Takagi

IPC分类号： H01L33/00

CPC分类号： H01S5/02276 ,  H01L33/483 ,  H01L2224/48091 ,  H01S5/02212 ,  H01S5/06226 ,  H01L2924/00014

摘要： A stem for an optical element includes a base-like portion located on a portion of a package side surface of an eyelet, higher than the package side surface. A block is located on a surface of the base-like portion of the eyelet. An optical element mounting surface of the block projects outward, overhanging a side face of the base-like portion, close to lead electrodes which are inserted through holes of the eyelet, respectively, and sealed with sealing glass. High-frequency line substrates are located on the optical element mounting surface of the block, and Au films of the high-frequency line substrate are electrically connected to respective lead electrodes.

摘要翻译： 用于光学元件的杆包括位于孔眼的包装侧表面的高于包装侧表面的部分的基部状部分。 块体位于孔眼的基部部分的表面上。 块的光学元件安装面向外突出，突出于基部的侧面，靠近分别穿过孔眼的孔插入的引线电极，并用密封玻璃密封。 高频线基板位于块的光学元件安装面上，高频线基板的Au膜与各引线电极电连接。

公开(公告)号：US20060256437A1

公开(公告)日：2006-11-16

申请号：US10549325

申请日：2003-03-19

申请人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nisimura

发明人： Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nisimura

IPC分类号： G02B27/28

CPC分类号： G02B5/3083 ,  G01J9/02 ,  G01J2009/0257 ,  G02B7/008 ,  H01S5/02248 ,  H01S5/0687

摘要： A wavelength filter includes a solid material that is optically transparent and including a pair of planar surfaces substantially parallel to each other; and a supporting member that supports the solid material on a planar surface of the solid material other than the pair of planar surfaces, the supporting member having a rigidity higher than that of the solid material. The solid material is a birefringent material of which an optical axis makes a predetermined angle with respect to a normal to the pair of planar surfaces, and the wavelength filter selects light having a wavelength that is determined by an optical length between the pair of planar surfaces by resonating the light between the pair of planar surfaces.

摘要翻译： 波长滤波器包括光学透明并且包括彼此大致平行的一对平面的固体材料; 以及支撑构件，其将所述固体材料支撑在除了所述一对平面之外的所述固体材料的平坦表面上，所述支撑构件的刚度高于所述固体材料的刚度。 固体材料是双折射材料，其光轴相对于一对平面的法线形成预定角度，并且波长滤光器选择具有由一对平面之间的光学长度确定的波长的光 通过使一对平面之间的光共振。

公开(公告)号：US20050191797A1

公开(公告)日：2005-09-01

申请号：US11064943

申请日：2005-02-25

申请人： Koji Usuda ,  Shinichi Takagi

发明人： Koji Usuda ,  Shinichi Takagi

IPC分类号： C30B1/00 ,  H01L21/00 ,  H01L21/02 ,  H01L21/20 ,  H01L21/336 ,  H01L21/36 ,  H01L21/762 ,  H01L21/8234 ,  H01L21/8242 ,  H01L21/84 ,  H01L27/08 ,  H01L27/088 ,  H01L27/10 ,  H01L27/108 ,  H01L27/12 ,  H01L29/10 ,  H01L29/78 ,  H01L29/786

CPC分类号： H01L21/76283 ,  H01L21/02381 ,  H01L21/02532 ,  H01L21/0262 ,  H01L21/76275 ,  H01L21/823481 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/1054

摘要： A method of manufacturing a semiconductor device, includes preparing a semiconductor substrate, bonding a first semiconductor layer onto a part of the semiconductor substrate with a first insulating layer interposed therebetween, forming a second insulating layer on a side of the first semiconductor layer, epitaxially growing a second semiconductor layer in a region on the semiconductor substrate other than a region formed with the first insulating layer, forming a first semiconductor element in the first semiconductor layer on the first insulating layer, and forming a second semiconductor element in the second semiconductor layer on the second insulating layer.

摘要翻译： 一种制造半导体器件的方法，包括：制备半导体衬底，将第一半导体层与介于其间的第一绝缘层接合在半导体衬底的一部分上，在第一半导体层侧形成第二绝缘层，外延生长 在除了形成有第一绝缘层的区域之外的半导体衬底上的区域中的第二半导体层，在第一绝缘层上的第一半导体层中形成第一半导体元件，并且在第二半导体层中形成第二半导体元件 第二绝缘层。

公开(公告)号：US06791150B2

公开(公告)日：2004-09-14

申请号：US10327091

申请日：2002-12-24

申请人： Shinichi Takagi

发明人： Shinichi Takagi

IPC分类号： H01L2972

CPC分类号： H01S5/02415 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/16195 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/0683 ,  H01L2924/00014 ,  H01L2924/00

摘要： A thermoelectric semiconductor has a P-type semiconductor and an N-type semiconductor disposed in parallel. A heat absorbing side of the thermoelectric semiconductor and a substrate that has an optical element mounted on its upper surface are disposed on the same plane. A heat radiation side of the thermoelectric semiconductor is disposed such that a direction from the heat absorbing side to the heat radiation side of the thermoelectric semiconductor is parallel with the upper surface of the substrate. Based on this arrangement, it is possible to set the environmental temperature of an optical module to the same level as the operation temperature of a laser diode.

摘要翻译： 热电半导体具有平行配置的P型半导体和N型半导体。 热电半导体的吸热侧和安装在其上表面上的光学元件的基板设置在同一平面上。 热电半导体的散热侧被配置为使得从热电半导体的吸热侧到散热侧的方向与基板的上表面平行。 基于这种布置，可以将光学模块的环境温度设置为与激光二极管的操作温度相同的水平。