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    Method for manufacturing optic transmission modules and system for inspecting bit error rate characters
    23.
    发明授权
    Method for manufacturing optic transmission modules and system for inspecting bit error rate characters 失效
    用于制造光传输模块的方法和用于检查误码率字符的系统

    公开(公告)号：US06661503B1

    公开(公告)日：2003-12-09

    申请号：US09485723

    申请日：2000-05-12

    申请人： Kazuo Yamaguchi ,  Takashi Minato ,  Shinzoo Nishiyama ,  Atsushi Murata ,  Naohiko Baba ,  Tsutomu Yoshiya ,  Kazumi Kawamoto ,  Kyouichi Yamamoto ,  Kazuo Aoyama

    发明人： Kazuo Yamaguchi ,  Takashi Minato ,  Shinzoo Nishiyama ,  Atsushi Murata ,  Naohiko Baba ,  Tsutomu Yoshiya ,  Kazumi Kawamoto ,  Kyouichi Yamamoto ,  Kazuo Aoyama

    IPC分类号： G01N2100

    CPC分类号： G01M11/331

    摘要： A method of manufacturing an optic transmission module assures a high reliability for the module by inspecting the character of a low bit error rate (BER) of the module quickly and accurately. The module is employed in an optical communication system (light transmission system) required to cope with information communication systems that are becoming faster and faster in operation and larger and larger in capacity. Also disclosed is a system and a method for inspection of the BER character which uses a rectangular wave pulse as an interference light to calculate a degradation quantity of a signal-to-noise ratio (S/N) on the basis of a simple theory, thereby inspecting the BER character by extrapolating a case in which there is no interference light (S/X=∞ or X=0) with use of a sign error rate theoretical value according to a bit error rate of a light signal measured according to the degradation quantity.

    摘要翻译： 制造光传输模块的方法通过快速，准确地检查模块的低误码率（BER）的特性来确保模块的高可靠性。 该模块用于应对在运行中变得越来越快，容量越来越大的信息通信系统所需的光通信系统（光传输系统）中。 还公开了一种基于简单的理论，使用矩形波脉冲作为干涉光来检查BER特性的系统和方法来计算信噪比（S / N）的劣化量， 从而通过使用符号误差率理论值，根据根据该信号测量的光信号的误码率外推不存在干扰光的情况（S / X =∞或X = 0）来检查BER特性 降解量。

    Optical transmission module
    24.
    发明授权
    Optical transmission module 失效
    光传输模块

    公开(公告)号：US07044652B2

    公开(公告)日：2006-05-16

    申请号：US10052626

    申请日：2002-01-17

    申请人： Naoki Matsushima ,  Kazumi Kawamoto ,  Koichiro Tonehira

    发明人： Naoki Matsushima ,  Kazumi Kawamoto ,  Koichiro Tonehira

    IPC分类号： G02B6/36

    CPC分类号： G02B6/4225 ,  G02B6/4204 ,  G02B6/4206 ,  G02B6/4237

    摘要： A semiconductor laser and an optical fiber are optically coupled via a first lens and a second lens, the second lens is previously fixed to a module package and these parts are mounted to the module package, when focal lengths of the first lens and the second lens are respectively designated by f1 and f2, an optical distance between a principal plane of the first lens on its side of the second lens and a principal plane of the second lens on its side of the first lens, is made substantially equal to f1+f2. Thereby, there is provided an optical transmission module having low price capable of achieving a high coupling efficiency with high yield.

    摘要翻译： 半导体激光器和光纤通过第一透镜和第二透镜光学耦合，第二透镜预先固定到模块封装，并且当第一透镜和第二透镜的焦距被固定时，这些部件被安装到模块封装 分别由f 1和f 2表示，使第一透镜的第二透镜的主面与第一透镜的一侧的主面之间的光学距离基本上等于f 1 + f 2。 因此，提供了一种具有低价格的光传输模块，能够以高产率实现高耦合效率。

    Optical transmission module
    25.
    发明授权
    Optical transmission module 有权
    光传输模块

    公开(公告)号：US06985659B2

    公开(公告)日：2006-01-10

    申请号：US10631411

    申请日：2003-07-30

    申请人： Makoto Torigoe ,  Kazumi Kawamoto ,  Takashi Suga ,  Hiroyasu Sasaki ,  Fumitoshi Goto

    发明人： Makoto Torigoe ,  Kazumi Kawamoto ,  Takashi Suga ,  Hiroyasu Sasaki ,  Fumitoshi Goto

    IPC分类号： G02B6/44

    CPC分类号： G02B6/4201 ,  G02B6/4279 ,  G02B6/4281 ,  G02B6/4283 ,  H05K1/0219 ,  H05K1/0224 ,  H05K1/025 ,  H05K1/118 ,  H05K1/147 ,  H05K1/148 ,  H05K3/361 ,  H05K2201/0715 ,  H05K2201/093 ,  H05K2201/10121

    摘要： The present invention relates to an optical transmission module comprising two substrates, each of which has an electronic part mounted on the substrate and a terminal area for inputting/outputting an electric signal into/from the electronic part, wherein an electrical connection is made between the terminal areas of said two substrates by use of a flexible substrate having a structure constituted of at least three layers, and thereby a high frequency signal is transmitted between the electronic part mounted on one substrate and the electronic part mounted on the other substrate through the flexible substrate while confining an electromagnetic field.In addition, the present invention provides an optical transmission module characterized in that a slit formed in a ground plane on a connection section of a three-layer flexible substrate reduces a disturbance in electromagnetic field, making it possible to improve the transmission characteristic of a high frequency signal.

    摘要翻译： 本发明涉及一种光传输模块，其包括两个基板，每个基板具有安装在基板上的电子部件和用于将电信号输入/输出到电子部件的端子区域，其中，在 通过使用具有由至少三层构成的结构的柔性基板，从而在安装在一个基板上的电子部件与安装在另一个基板上的电子部件之间传递高频信号，通过柔性 同时限制电磁场。 此外，本发明提供一种光传输模块，其特征在于，在三层柔性基板的连接部上形成在接地面上的狭缝减少了电磁场的干扰，使得可以提高高传输特性 频率信号。

    Optical transmission module and the production method of the same
    27.
    发明授权
    Optical transmission module and the production method of the same 失效
    光传输模块及其制作方法相同

    公开(公告)号：US06864511B2

    公开(公告)日：2005-03-08

    申请号：US10222288

    申请日：2002-08-16

    申请人： Yoshio Oozeki ,  Kazumi Kawamoto ,  Seiichi Tsuchida

    发明人： Yoshio Oozeki ,  Kazumi Kawamoto ,  Seiichi Tsuchida

    IPC分类号： G02B6/42 ,  G02B6/122 ,  H01S5/022 ,  H01S5/042 ,  H01L27/15

    CPC分类号： H01S5/0425 ,  H01S5/02252 ,  H01S5/02272 ,  H01S5/02284

    摘要： An optical transmission module with an optical device mounted in a substrate provided with an optical waveguide is provided wherein respective metallic electrodes in pair are symmetrically disposed in each side of an optical device divided by a centerline parallel to an optical axis such that those electrodes have an error of 60 μm or less and said metallic electrodes are soldered to a metallic electrode as disposed on a substrate, which electrode has a size enough to cover those electrodes as disposed in the optical device.

    摘要翻译： 提供一种具有安装在设置有光波导的基板中的光学装置的光传输模块，其中成对的各个金属电极对称地设置在与光轴平行的中心线划分的光学装置的每一侧中，使得这些电极具有 误差在60μm以下，并且所述金属电极被焊接到设置在基板上的金属电极，该电极具有足以覆盖设置在光学装置中的那些电极的尺寸。

    Semiconductor photodetector and optical transmitting device
    28.
    发明授权
    Semiconductor photodetector and optical transmitting device 失效
    半导体光电检测器和光发射装置

    公开(公告)号：US06822271B2

    公开(公告)日：2004-11-23

    申请号：US09485852

    申请日：2000-02-17

    申请人： Toshiyuki Mogi ,  Kazumi Kawamoto ,  Shinji Tsuji ,  Hitoshi Nakamura ,  Masato Shishikura ,  Satoru Kikuchi

    发明人： Toshiyuki Mogi ,  Kazumi Kawamoto ,  Shinji Tsuji ,  Hitoshi Nakamura ,  Masato Shishikura ,  Satoru Kikuchi

    IPC分类号： H01L2980

    CPC分类号： G02B6/4224

    摘要： In aiming at cost lowering of an optical module and an optical transmission apparatus and with the objective of providing a semiconductor light receiving element that has a good coherence with the other edge emitting/incidence type optical devices and is capable of performing the positioning easily and with a high accuracy, in the edge emitting/incidence type light receiving element in which the light absorbing layer 19 has been formed, the space region is formed so as to provide at least 100 &mgr;m2 of the marker detecting region 24, thereby facilitating detection of marker 23 on the optical device 26 and executing the positioning of the light receiving element with a high accuracy, the space region resulting from eliminating a part of the light absorbing layer 19 that absorbs the detection light of the light receiving element, the transmission amount of the detection light toward the marker detecting region that is parallel to a primary plane being equal to 30% or higher, the detection light having penetrated and transmitted the primary plane of the light receiving element.

    摘要翻译： 为了降低光学模块和光学传输装置的成本，并且为了提供与其它边缘发射/入射型光学装置具有良好相干性的半导体光接收元件，并且能够容易地执行定位 在其中形成有光吸收层19的边缘发射/入射型光接收元件中形成高精度，形成空间区域，以便提供标记检测区域24的至少100微米2，从而便于 检测光学装置26上的标记23，并且以高精度执行光接收元件的定位，由消除吸收光接收元件的检测光的光吸收层19的一部分而产生的空间区域，透射 检测光朝着与主平面平行的标记检测区域的检测光量等于30％以上 n光穿过并透射光接收元件的主平面。

    Optical module with a monitor photo diode
    29.
    发明授权
    Optical module with a monitor photo diode 失效
    具有监控光电二极管的光模块

    公开(公告)号：US06813102B2

    公开(公告)日：2004-11-02

    申请号：US10165701

    申请日：2002-06-07

    申请人： Hiroaki Furuichi ,  Kazumi Kawamoto ,  Naoki Matsushima

    发明人： Hiroaki Furuichi ,  Kazumi Kawamoto ,  Naoki Matsushima

    IPC分类号： G02B702

    CPC分类号： H01S5/02252 ,  H01L24/32 ,  H01L2924/12042 ,  H01L2924/12043 ,  H01L2924/15787 ,  H01S5/005 ,  H01S5/0683 ,  H01L2924/00

    摘要： A PD (20) is mounted to a position offset (23) as viewed in the direction orthogonal to the center of an optical axis (14) of backward light (13) of an LD (11) in such a manner that a light receiving plane (21) thereof becomes substantially parallel to the center of the optical axis. Alternatively, the PD (20) is mounted thereto so that the light receiving plane of the PD is inclined at angles ranging from about 0° to about 30° to the center of the optical axis of the backward light. Further, the PD whose side face on the LD side is inclined, is used to repeatedly reflect the backward light between the PD and an LD mounting substrate, after which the backward light is launched on the light receiving plane 21. An optical module equipped with a PD for monitoring optical output power of an LD can be applied even to a junction up LD which reduces the number of parts, reduces even the number of connections by solder or the like and the number of electrical connections by wire bonding or the like, and makes no use of a base for the PD. Thus, low-cost PD mounting can be realized.

    摘要翻译： 从与LD（11）的反光（13）的光轴（14）的中心正交的方向观察，PD（20）被安装到位置偏移（23），使得光接收 平面（21）变得基本上平行于光轴的中心。 或者，PD（20）安装在其上，使得PD的光接收平面相对于向后光的光轴的中心约0°至约30°的角度倾斜。 此外，LD侧的侧面倾斜的PD用于反复反射PD与LD安装基板之间的反光，然后在光接收面21上发射反光。具有 用于监视LD的光输出功率的PD可以甚至应用于结合上LD，其减少部件的数量，甚至通过焊料等减少连接的数量以及通过引线接合等的电连接的数量， 并且不使用PD的基础。 因此，可以实现低成本的PD安装。