公开(公告)号：US20160164251A1

公开(公告)日：2016-06-09

申请号：US14906880

申请日：2014-07-18

Applicant: PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION

Inventor： Kenichiro Yashiki ,  Kazuhiko Kurata

IPC: H01S5/026 ,  H01S5/00 ,  G02B6/12 ,  G02B6/125 ,  G02F1/025

CPC classification number: H01S5/0268 ,  G02B6/12004 ,  G02B6/125 ,  G02B6/2813 ,  G02B6/34 ,  G02B6/4204 ,  G02B6/4249 ,  G02B2006/12142 ,  G02F1/025 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/02248

Abstract: Provided is a transmission unit for an optical transmitter/receiver or an optical transmitter provided with an optical integrated circuit, characterized in the arrangement of a single-channel or multichannel semiconductor laser and the placement of a plurality of optical waveguides.This present invention is provided with: a semiconductor laser for emitting laser light in a plurality of channels; optical waveguides optically coupled in a corresponding manner to the semiconductor lasers, the optical waveguides propagating laser light as input light for each channel; optical modulators for modulating the input light and generating an optical signal; and an optical signal output unit coupled to the optical modulators, the optical signal output unit outputting the optical signal propagated from the optical modulators to the exterior. The present invention is characterized in that the semiconductor laser is arranged on the opposite side from an optical branching unit and the optical modulators, with the optical signal output unit interposed therebetween, in the plane of an opto-electric hybrid board.

Abstract translation: 提供了一种用于光发射机/接收机或具有光学集成电路的光发射机的发射单元，其特征在于单通道或多通道半导体激光器的布置以及多个光波导的放置。 本发明提供了一种用于在多个通道中发射激光的半导体激光器; 以与半导体激光器相应的方式光学耦合的光波导，光波导传播激光作为每个通道的输入光; 用于调制输入光并产生光信号的光调制器; 以及耦合到光调制器的光信号输出单元，光信号输出单元将从光调制器传播的光信号输出到外部。 本发明的特征在于，半导体激光器配置在与光分路单元相反的一侧，光调制器与光信号输出单元插入在光电混合基板的平面内。

公开(公告)号：US20160161691A1

公开(公告)日：2016-06-09

申请号：US14955600

申请日：2015-12-01

Applicant: FUJITSU LIMITED ,  Photonics Electronics Technology Research Association

Inventor： Akinori Hayakawa

IPC: G02B6/42 ,  G02B6/27 ,  G02B6/12 ,  G02B6/293

CPC classification number: G02B6/4295 ,  G02B6/2726 ,  G02B6/2934 ,  G02B6/29382 ,  G02B2006/12138 ,  G02B2006/12142

Abstract: An optical functional device includes: a photodetector; a first optical waveguide which is connected to one end face of the photodetector; and a second optical waveguide which is connected to the other end face of the photodetector. The photodetector is formed in a multi-mode interferometer and has electrodes. Light input from the first optical waveguide to the photodetector focuses image at a position physically away from the second optical waveguide, and light input from the second optical waveguide to the photodetector focuses image at a position physically away from the first optical waveguide.

Abstract translation: 光学功能器件包括：光电检测器; 第一光波导，其连接到所述光电检测器的一个端面; 以及与光电检测器的另一端面连接的第二光波导。 光电检测器形成在多模干涉仪中并具有电极。 从第一光波导到光电检测器的光输入在物理上远离第二光波导的位置处聚焦图像，并且从第二光波导输入到光电检测器的光在物理上远离第一光波导的位置处聚焦图像。

公开(公告)号：US20160062063A1

公开(公告)日：2016-03-03

申请号：US14781249

申请日：2014-03-20

Applicant: PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION

Inventor： Ichiro Ogura ,  Koichi Takemura ,  Mitsuru Kurihara ,  Toshinori Uemura ,  Akio Ukita ,  Kazuhiko Kurata

IPC: G02B6/42 ,  G02B6/30 ,  G02B6/138 ,  G02B6/12

CPC classification number: G02B6/4251 ,  G02B6/12004 ,  G02B6/138 ,  G02B6/305 ,  G02B6/4207 ,  G02B6/4214 ,  G02B6/423 ,  G02B6/4248 ,  G02B6/425 ,  G02B6/4279 ,  G02B6/428 ,  G02B6/4292

Abstract: In a photoelectric hybrid device, an optical connector is mounted on a flat optical surface provided on one end of vertical optical waveguides for inputting and outputting an optical signal, and along with making integration of the photoelectric hybrid device into an interposer or the like easy, integration is standardized. The photoelectric hybrid device is provided with: conductive pins (108) that are connected to an electric signal pathway for a photoelectric hybrid substrate; a translucent member (116) that has a flat optical surface and also has a translucent part (118); and a plurality of self organizing optical waveguides (122) that form an optical path between the translucent part (118) and an optical waveguide of the photoelectric hybrid substrate. The constitution is such that the position of the flat optical surface is not lower than the tops of the electrical connection parts (110) on the conductive pins (108); thereby, when an optical connector on which an optical waveguide that transmits an optical signal among the optical waveguides (122) is mounted on the flat optical surface, collision of the optical connector and the tops of the electrical connection parts can be avoided.

Abstract translation: 在光电混合装置中，光连接器安装在设置在垂直光波导的一端的平坦的光学表面上，用于输入和输出光信号，并且随着将光电混合器件集成到插入器等中， 整合规范化。 该光电混合器件设置有：与用于光电混合基板的电信号通路连接的导电引脚（108） 具有平坦光学表面并且还具有半透明部分（118）的半透明构件（116）; 以及多个自组织光波导（122），其在所述透光部（118）和所述光电混合基板的光波导之间形成光路。 该结构使得平面光学表面的位置不低于导电引脚（108）上的电连接部分（110）的顶部; 因此，当在光波导（122）上安装有发送光信号的光波导的光连接器安装在平面光学面上时，可以避免光连接器与电连接部的顶部的碰撞。

公开(公告)号：US20150086153A1

公开(公告)日：2015-03-26

申请号：US14482616

申请日：2014-09-10

Applicant: OKI ELECTRIC INDUSTRY CO., LTD. ,  National Institute of Advanced Industrial Science and Technology ,  Photonics Electronics Technology Research Association

Inventor： Hideki ONO ,  Tsuyoshi HORIKAWA ,  Naoki HIRAYAMA

IPC: G02B6/12 ,  G02B6/27 ,  G02B6/30 ,  G02B6/028 ,  G02B6/136

CPC classification number: G02B6/1228 ,  G02B6/12002 ,  G02B6/124 ,  G02B6/126 ,  G02B6/136 ,  G02B6/305 ,  G02B6/34 ,  G02B2006/12061 ,  G02B2006/12147

Abstract: In a method of manufacturing an optical device including an optical waveguide having a core, a cladding and a light input/output part through which a light beam is input or output, a substrate is prepared which is provided with a uniform thickness of single-crystalline film having its constituent atoms forming a diamond lattice structure and its surface being neither the (111) plane nor its equivalent planes. In the single-crystalline film, a precursor structure is formed which has a precursor of light input/output part. A mask is formed such as to expose the precursor with the remaining part covered. The structure is immersed into an alkaline solution for wet etching with the (111) planes used as etch-stop planes.

Abstract translation: 在制造包括光纤的光学器件的方法中，该光学器件具有芯，输入或输出光束的包层和光输入/输出部分，制备具有均匀厚度的单晶 其构成原子形成金刚石晶格结构的膜，其表面既不是（111）面也不是其等效平面。 在单晶膜中，形成具有光输入/输出部分的前体的前体结构。 形成掩模，以使剩余部分被覆盖的前体曝光。 将该结构浸入用作用作蚀刻停止平面的（111）面的湿法蚀刻的碱性溶液中。

公开(公告)号：US11307480B2

公开(公告)日：2022-04-19

申请号：US16851440

申请日：2020-04-17

Applicant: FUJITSU LIMITED ,  Photonics Electronics Technology Research Association

Inventor： Takasi Simoyama

IPC: G02F1/225 ,  G02B6/14 ,  G02B6/12

Abstract: An optical semiconductor device including an optical waveguide; a light absorbing region coupled to the optical waveguide; a first conductive region and a second conductive region disposed at both sides of the light absorbing region so as to sandwich the light absorbing region; and a conductor coupled to the first conductive region and the second conductive region to let the first conductive region and the second conductive region short-circuit. With this configuration, the optical semiconductor device provides effects that absorption saturation is less likely to occur even if the light intensity increases, so that reflection return light can be reliably suppressed without using an external power source.

公开(公告)号：US11137546B2

公开(公告)日：2021-10-05

申请号：US16788756

申请日：2020-02-12

Applicant: NEC Corporation ,  Photonics Electronics Technology Research Association

Inventor： Masatoshi Tokushima ,  Jun Ushida

IPC: G02B6/12 ,  G02B6/125 ,  G02B6/28 ,  G02B6/293 ,  G02B6/30 ,  G02B6/34 ,  G02B6/42

Abstract: To provide an optical element that can be more easily aligned with an optical fiber, an optical element includes one grating coupler optically coupled to an optical fiber, a waveguide connected to the grating coupler, a multimode interferometer connected to the waveguide on the opposite side to the grating coupler, and a waveguide inserted between two input/output ports on the branched side of the multimode interferometer.

公开(公告)号：US10353225B2

公开(公告)日：2019-07-16

申请号：US15751714

申请日：2015-08-11

Applicant: PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION

Inventor： Kenichiro Yashiki ,  Yasuyuki Suzuki

IPC: G02F1/01 ,  G02F1/03 ,  G02F1/025 ,  G02F1/035 ,  H04B10/516

Abstract: The purpose of the present invention is to allow a silicon photonics modulator to be operated at high speed with high frequency by providing an electrode structure for the small multichannel high-density silicon photonics modulator. This electrode structure for a silicon photonics modulator includes, on the planar surface of a silicon substrate, a first layer for forming a plurality of bias electrical wirings, and a second layer formed by aligning each of a plurality of ground electrode portions and each electrical wiring in the first layer.

公开(公告)号：US20190131761A1

公开(公告)日：2019-05-02

申请号：US16174523

申请日：2018-10-30

Applicant: FUJITSU LIMITED ,  Photonics Electronics Technology Research Association

Inventor： Nobuaki Hatori

IPC: H01S5/028 ,  H01S5/12 ,  H01S5/34 ,  G02B6/42

Abstract: A semiconductor light-emitting device includes an active layer including quantum dots, a diffraction grating, a low-reflectance film disposed at a light-emitting end of the active layer, and a high-reflectance film disposed at another end of the active layer and having an optical reflectance higher than an optical reflectance of the low-reflectance film.

公开(公告)号：US20180067265A1

公开(公告)日：2018-03-08

申请号：US15688084

申请日：2017-08-28

Applicant: FUJITSU LIMITED ,  Photonics Electronics Technology Research Association

Inventor： Tomoyuki Akiyama

IPC: G02B6/36 ,  G02B6/30 ,  G02B6/12 ,  G02B6/293 ,  G02B6/42

CPC classification number: G02B6/3632 ,  G02B6/12 ,  G02B6/29317 ,  G02B6/305 ,  G02B6/4228 ,  G02B2006/12061 ,  G02B2006/12085

Abstract: The invention relates to an optical fiber mounted photonic integrated circuit device, wherein the tolerance for positioning in terms of the coupling between the single mode optical fibers and the optical waveguides provided on the photonic integrated circuit device is increased. An optical waveguide core group is provided in such a manner where a plurality of optical waveguide cores having a portion that is tapered in the direction of the width within a plane are aligned parallel to each other at intervals that allow for mutual directional coupling and that are narrower than the width of the core of the single mode optical fiber, and the inclined connection end surface of the single mode optical fiber and the upper surface of an end portion of the optical waveguide cores face each other for coupling.

公开(公告)号：US09897752B2

公开(公告)日：2018-02-20

申请号：US14780434

申请日：2014-03-20

Applicant: Photonics Electronics Technology Research Association

Inventor： Shigeki Takahashi ,  Junichi Fujikata

IPC: G02B6/26 ,  G02B6/122 ,  G02B6/28 ,  G02B6/14 ,  G02B6/30

CPC classification number: G02B6/1228 ,  G02B6/122 ,  G02B6/14 ,  G02B6/2813 ,  G02B6/305

Abstract: An optical end coupling type silicon optical integrated circuit is provided using an SOI substrate. This optical integrated circuit is constituted so as to connect with an external optical circuit at an end coupling part and have signal light incident to an optical circuit that includes a curved part. In the plane of the optical integrated circuit, the position of one end coupling part selected from among any thereof and the position of any multimode optical waveguide element to which a respective optical waveguide is connected via a respective curved part satisfy a positional relationship defined on the basis of a beam divergence angle [theta] of stray light.