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    Traveling wave optical modular
    5.
    发明授权
    Traveling wave optical modular 有权
    行波光模块

    公开(公告)号：US06831767B2

    公开(公告)日：2004-12-14

    申请号：US10459472

    申请日：2003-06-12

    申请人： Junji Shigeta ,  Masataka Shirai ,  Shinji Tsuji ,  Hideo Arimoto

    发明人： Junji Shigeta ,  Masataka Shirai ,  Shinji Tsuji ,  Hideo Arimoto

    IPC分类号： G02F101

    CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F1/0356 ,  G02F2001/0157 ,  G02F2201/127

    摘要： An optical modulator having a good reflection characteristic over a broad band is provided, with a small semiconductor chip area, by use of a semiconductor chip on which a semiconductor optical modulator is mounted. A typical example of the optical modulator has a structure in which a semiconductor chip provided with an electro-absorption semiconductor optical modulator comprising an electrode of traveling wave modulator is mounted on a dielectric substrate provided with a transmission line, and the characteristic impedance of at least a part of the transmission line is set to be greater than the output impedance of a modulator driver circuit and the impedance of an optical modulator portion. By this, a broad band optical modulator with excellent reflection characteristic can be provided by use of a semiconductor chip which is small in area.

    摘要翻译： 通过使用其上安装有半导体光调制器的半导体芯片，提供了在宽带上具有良好反射特性的光调制器，具有小的半导体芯片面积。 光调制器的典型实例具有这样的结构，其中设置有包括行波调制器电极的电吸收半导体光调制器的半导体芯片安装在设置有传输线的电介质基板上，并且至少具有特征阻抗 传输线的一部分被设置为大于调制器驱动器电路的输出阻抗和光调制器部分的阻抗。 由此，可以通过使用面积小的半导体芯片来提供具有优异反射特性的宽带光调制器。

    Wavelength tunable filter and wavelength tunable laser module
    8.
    发明授权
    Wavelength tunable filter and wavelength tunable laser module 有权
    波长可调滤波器和波长可调激光模块

    公开(公告)号：US08179931B2

    公开(公告)日：2012-05-15

    申请号：US12622785

    申请日：2009-11-20

    申请人： Hideo Arimoto ,  Masahiro Aoki

    发明人： Hideo Arimoto ,  Masahiro Aoki

    IPC分类号： H01S3/10

    CPC分类号： G02F1/3133 ,  H01S5/06256 ,  H01S5/1032 ,  H01S5/1035

    摘要： A wavelength tunable filter and a wavelength tunable laser module are a codirectional coupler type whose characteristics do not vary significantly with a process error. They are structured so as to include a semiconductor substrate which has a first optical waveguide and a second optical waveguide. The first and the second optical waveguides are extended from a first side of the semiconductor substrate to an opposing second side thereof. The first optical waveguide includes a first core layer, which has a planar layout having periodic convexes and concaves, and a pair of electrodes, which vertically sandwich the first core layer. The second optical waveguide includes a second core layer, which has a lower refractive index than the first core layer. Further, a layer having the same composition and film thickness as the second core layer is placed under the first core layer.

    摘要翻译： 波长可调滤波器和波长可调激光器模块是一种同向耦合器类型，其特性与处理误差不会显着变化。 它们被构造成包括具有第一光波导和第二光波导的半导体衬底。 第一和第二光波导从半导体衬底的第一侧延伸到相对的第二侧。 第一光波导包括具有周期性凸起和凹陷的平面布局的第一芯层和垂直夹着第一芯层的一对电极。 第二光波导包括具有比第一芯层低的折射率的第二芯层。 此外，具有与第二芯层相同的组成和膜厚度的层被放置在第一芯层下方。

    Semiconductor laser apparatus
    9.
    发明申请
    Semiconductor laser apparatus 有权
    半导体激光装置

    公开(公告)号：US20090268772A1

    公开(公告)日：2009-10-29

    申请号：US12385735

    申请日：2009-04-17

    申请人： Hideo Arimoto ,  Masahiro Aoki

    发明人： Hideo Arimoto ,  Masahiro Aoki

    IPC分类号： H01S5/026 ,  H01S3/08

    CPC分类号： H01S5/141 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/0267 ,  H01S5/1082 ,  H01S5/1085 ,  H01S5/18 ,  H01S5/227 ,  H01S5/4087

    摘要： A wavelength variable laser smaller in size than the conventional one can be achieved by arranging a gain chip, an etalon filter and a fifth reflective mirror on an AlN submount and longitudinally integrating the gain chip in which a 45° mirror and a lens are integrated and the etalon filter. A laser cavity has a structure in which light passes through an active layer from a first reflective mirror realized by an end surface of the gain chip, is reflected by the 45° mirror at an angle of 90° and then passes through the lens. The light having passed through the lens is converted into parallel light, passes through the etalon filter and reaches the fifth reflective mirror and is then reflected. The reflected light returns through the same optical path and reaches the first reflective mirror realized by the end surface of the gain chip.

    摘要翻译： 可以通过在AlN基座上布置增益芯片，标准具滤波器和第五反射镜并纵向积分其中集成45°反射镜和透镜的增益芯片来实现尺寸比常规小的波长可变激光器， 标准具过滤器。 激光腔具有光从通过增益芯片的端面实现的第一反射镜穿过有源层的结构，被45°反射镜以90°的角度反射，然后通过透镜。 通过透镜的光被转换为平行光，通过标准具过滤器并到达第五反射镜，然后被反射。 反射光通过相同的光路返回并到达由增益芯片的端面实现的第一反射镜。

    Optical device, optical module, and method for manufacturing optical device
    10.
    发明授权
    Optical device, optical module, and method for manufacturing optical device 有权
    光学装置，光学模块以及光学装置的制造方法

    公开(公告)号：US08774571B2

    公开(公告)日：2014-07-08

    申请号：US13590718

    申请日：2012-08-21

    申请人： Kazunori Shinoda ,  Shigeki Makino ,  Hideo Arimoto

    发明人： Kazunori Shinoda ,  Shigeki Makino ,  Hideo Arimoto

    IPC分类号： G02B6/12

    CPC分类号： G02F1/13471 ,  H01S5/0085 ,  H01S5/02216 ,  H01S5/02284 ,  H01S5/0265 ,  H01S5/06256 ,  H01S5/1209

    摘要： An optical device includes a substrate and a first optical waveguide including a mesa. The mesa includes a first lower clad layer portion, a first core layer portion, and a first upper clad layer portion. The first lower clad layer portion, the first core layer portion, and the first upper clad layer portion are disposed in this order from the substrate side. The optical device also includes a first etch stop layer configured to stop etching when the first optical waveguide is formed. The first etch stop layer being laminated over the substrate. The first optical waveguide is laminated on the first etch stop layer.

    摘要翻译： 光学装置包括基板和包括台面的第一光波导。 台面包括第一下包层部分，第一芯层部分和第一上包层部分。 第一下包层部分，第一芯层部分和第一上包层部分从衬底侧依次设置。 该光学器件还包括第一蚀刻停止层，其被配置为在形成第一光波导时停止蚀刻。 第一蚀刻停止层层压在衬底上。 第一光波导层压在第一蚀刻停止层上。