公开(公告)号：US20180233879A1

公开(公告)日：2018-08-16

申请号：US15510607

申请日：2015-10-28

申请人： Sumitomo Electric Industries, Ltd.

发明人： Kazuhiro Yamaji ,  Yasushi Fujimura ,  Toru Watanabe ,  Yasuyuki Yamauchi ,  Tomoya Saeki ,  Munetaka Kurokawa

IPC分类号： H01S5/00 ,  G02B27/14 ,  G02B27/09 ,  G02B27/30 ,  G02B6/42 ,  H01S5/024 ,  H01S5/022

CPC分类号： H01S5/0085 ,  G02B6/4214 ,  G02B6/4224 ,  G02B6/4227 ,  G02B6/4239 ,  G02B6/4244 ,  G02B6/4265 ,  G02B6/4271 ,  G02B27/0955 ,  G02B27/141 ,  G02B27/30 ,  G02F1/2255 ,  G02F2001/212 ,  H01L2224/48091 ,  H01L2224/4903 ,  H01L2924/19107 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/02446 ,  H01S5/02476 ,  H01S5/0265 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0687 ,  H04B10/505 ,  H01L2924/00014

摘要： An optical module and a method of assembling the optical module are disclosed. The optical module comprises a laser unit, a modulator unit, and a detector unit mounted on respective thermo-electric coolers (TECs). The modulator unit, which is arranged on an optical axis of the first output port from which a modulated beam is output, modulates the continuous wave (CW) beam output from the laser unit. On the other hand, the laser unit and the detector unit are arranged on another optical axis of the second output port from which another CW beam is output. The method of assembling the optical module first aligns one of the first combination of the laser unit and the modulator unit with the first output port and the second combination of the laser unit and the detector unit, and then aligns another of the first combination and the second combination.

公开(公告)号：US20180191132A1

公开(公告)日：2018-07-05

申请号：US15740655

申请日：2015-12-15

申请人： Accelink Technologies Co., Ltd.

发明人： Shenglei Hu ,  Yanfeng Fu ,  Yi Tang ,  Di Zhang ,  Shiyu Li ,  Xuesheng Tang ,  Kun Qian ,  Weidong Ma ,  Qianggao Hu

IPC分类号： H01S5/06 ,  H01S5/14 ,  H01S5/50

CPC分类号： H01S5/06 ,  H01S3/1062 ,  H01S5/0064 ,  H01S5/02446 ,  H01S5/14 ,  H01S5/142 ,  H01S5/50

摘要： A wavelength-tunable external cavity laser comprises a semiconductor optical amplifier chip and a laser external cavity, the laser external cavity comprising a grid filter, a phase adjustor and a silicon-based micro-ring chip, the grid filter and the silicon-based micro-ring chip constituting a wavelength-tunable optical filter which implements wavelength tuning by spectral tuning of the grid filter and/or the silicon-based micro-ring chip. A micro-ring filter in the silicon-based micro-ring chip of the tunable external-cavity laser is manufactured by adopting a mature silicon light technology, which can greatly reduce a manufacturing difficulty of the adjustable filter, and reduce the manufacturing cost of a device. An existing external-cavity adjustable technology platform may be used for smooth transition, so as to improve the degree of integration of this type of device and simplify a preparation process.

公开(公告)号：US09720301B2

公开(公告)日：2017-08-01

申请号：US14241432

申请日：2012-08-06

申请人： Nobuhiko Sugihara ,  Kentaro Fujita ,  Takanori Samejima ,  Yoshihiro Horikawa

发明人： Nobuhiko Sugihara ,  Kentaro Fujita ,  Takanori Samejima ,  Yoshihiro Horikawa

IPC分类号： G02F1/37 ,  G02F1/01 ,  G02F1/35 ,  H01S3/109 ,  H01S5/14 ,  H01S5/022 ,  H01S5/024 ,  H01S5/042 ,  H01S5/0683

CPC分类号： G02F1/37 ,  G02F1/0121 ,  G02F1/353 ,  G02F2201/17 ,  G02F2203/21 ,  H01S3/109 ,  H01S5/02296 ,  H01S5/02446 ,  H01S5/0428 ,  H01S5/0683 ,  H01S5/141

摘要： The purpose of the present invention is to make it possible to output stable light by optimizing the wavelength conversion efficiency in a wavelength conversion element without employing an optical detection device such as a photo diode in a laser light source device. A fundamental light wave emitted from a semiconductor laser (2) is wavelength converted by a wavelength conversion element (5) and is emitted therefrom. A lighting circuit (20) supplies electric power for the aforementioned semiconductor laser (2) to turn on the semiconductor laser (2). A control unit (21) controls the operation of the device while controlling the amount of power supplied to a heater means (7) such that the wavelength conversion element (5) reaches a temperature at which optimum wavelength conversion efficiency is acquired. The temperature detected by a temperature detection means (Th1) is input to the control unit (21), and the control unit (21) defines the temperature of the wavelength conversion element (5) at which the maximum amount of power is supplied to the heater means (7) as a set temperature at which the optimum wavelength conversion efficiency is acquired, and performs feedback control of the temperature of the wavelength conversion element (5) so that the temperature of the wavelength conversion element (5) reaches the aforementioned set temperature by controlling the amount of heat supplied from the heater means (7).

公开(公告)号：US20170093118A1

公开(公告)日：2017-03-30

申请号：US15311798

申请日：2015-05-20

申请人： CHEM OPTICS INC.

发明人： Hak Kyu LEE ,  Joon Oh PARK ,  Jun Kyu SEO ,  Jang Uk SHIN

IPC分类号： H01S3/131 ,  H01S3/139 ,  H01S5/14

CPC分类号： H01S3/0637 ,  H01S3/063 ,  H01S3/1055 ,  H01S5/02212 ,  H01S5/02248 ,  H01S5/02292 ,  H01S5/02446 ,  H01S5/026 ,  H01S5/0287 ,  H01S5/1003 ,  H01S5/101 ,  H01S5/141

摘要： Provided is a tunable wavelength laser module including: an external cavity type light source generating broadband light; an optical waveguide; a Bragg grating formed in the optical waveguide; a heater provided above the optical waveguide in which the Bragg grating is formed and adjusting a reflection band of the Bragg grating by a thermo-optic effect; a direction change waveguide region changing direction of optical signals obtained by the adjusted reflection band of the Bragg grating, by a predetermined angle; a 45-degree reflection part transmitting some of the optical signals direction-changed by the direction change waveguide region and escaping from the optical waveguide therethrough and reflecting the others of the optical signals in a vertical upward direction thereby; and a lens making the optical signals reflected in the vertical upward direction by the 45-degree reflection part collimated light or convergent light.

公开(公告)号：US20170093114A1

公开(公告)日：2017-03-30

申请号：US14869002

申请日：2015-09-29

申请人： Kotura, Inc.

发明人： Saeed Fathololoumi ,  Dazeng Feng ,  Amir Ali Tavallaee ,  Jacob Levy ,  Pegah Seddighian ,  Mehdi Asghari

IPC分类号： H01S3/10 ,  H01S3/102 ,  H01S3/09

CPC分类号： H01S3/10053 ,  H01S3/09 ,  H01S3/1028 ,  H01S3/106 ,  H01S5/0021 ,  H01S5/02248 ,  H01S5/02446 ,  H01S5/026 ,  H01S5/0687 ,  H01S5/141

摘要： An optical system includes a laser cavity on a base. The laser cavity generates a light signal in response to application of an electrical current to the laser cavity. The system includes first electronics that apply a target level of the electrical current to the laser cavity so as to cause the laser cavity to generate the light signal. The light signal experiences mode hops at electrical current levels that shift to higher current levels in response to increasing laser operation times. A first one of the mode hops occurs at a first current level and a second one of the mode hops occurs at a second current level that is higher than the first current level. The system also includes a phase shifter that interacts with the laser cavity so as to shift the mode hops to lower current levels than occur in the absence of the phase shifter.

公开(公告)号：US09450378B2

公开(公告)日：2016-09-20

申请号：US14847979

申请日：2015-09-08

申请人： Sumitomo Electric Device Innovations, Inc.

发明人： Hirokazu Tanaka ,  Masao Shibata ,  Mitsuyoshi Miyata

IPC分类号： H01S3/13 ,  H01S5/0687 ,  H01S5/024 ,  H01S5/0625 ,  H01S5/12 ,  H01S5/343 ,  H01S5/026 ,  H01S5/028 ,  H01S5/06 ,  H01S5/068

CPC分类号： H01S5/0687 ,  H01S5/02407 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02446 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/06804 ,  H01S5/1209 ,  H01S5/1212 ,  H01S5/34306

摘要： The method for controlling a wavelength-tunable laser comprises a first step of acquiring a driving condition of the wavelength-tunable laser for laser oscillation at a first wavelength, and a second step of calculating according to the driving condition of the first wavelength and a wavelength difference between the first wavelength and a second wavelength different from the first wavelength a control value or target value of a wavelength characteristic of the second wavelength in the wavelength detection unit, so as to calculate a driving condition for driving the wavelength-tunable laser, the second step including a step of selecting according to the wavelength difference one of etalon slopes having respective gradients identical and opposite to a gradient of an etalon slope used for controlling the first wavelength.

公开(公告)号：US20150115219A1

公开(公告)日：2015-04-30

申请号：US14505569

申请日：2014-10-03

申请人： Electronics and Telecommunications Research Institute

发明人： Su Hwan OH ,  Min Su KIM

IPC分类号： H01L33/00 ,  H01L33/58 ,  H01L33/06

CPC分类号： H01L33/0045 ,  G02B6/00 ,  G02B6/12004 ,  H01L33/06 ,  H01L33/58 ,  H01L2933/0058 ,  H01S5/00 ,  H01S5/02446 ,  H01S5/0287 ,  H01S5/041 ,  H01S5/06256 ,  H01S5/1014 ,  H01S5/1032 ,  H01S5/141

摘要： A superluminescent diode and a method for implementing the same, wherein the method includes growing a first epi layer on top of an SI (semi-insulating substrate); re-growing a butt based on the first epi layer; forming a tapered SSC (spot size converter) on the re-grown butt layer; forming an optical waveguide on an active area that is based on the first epi layer and on an SSC area that is based on the tapered SSC; forming an RWG on the optical waveguide; and forming a p-type electrode and an n-type electrode.

摘要翻译： 一种超发光二极管及其实现方法，其中该方法包括在SI（半绝缘基板）的顶部生长第一外延层; 基于第一个epi层重新生长一个对接; 在再生长的对接层上形成锥形SSC（光斑尺寸转换器）; 在基于第一外延层和基于锥形SSC的SSC区域的有源区上形成光波导; 在光波导上形成RWG; 并形成p型电极和n型电极。

公开(公告)号：US20150098480A1

公开(公告)日：2015-04-09

申请号：US14564270

申请日：2014-12-09

申请人： FURUKAWA ELECTRIC CO., LTD

发明人： Tetsuya MATSUYAMA ,  Maiko Ariga ,  Toshio Sugaya ,  Toshio Kimura

IPC分类号： H01S5/024 ,  H01S5/12 ,  H01S5/022

CPC分类号： H01S5/02415 ,  H01S5/0064 ,  H01S5/02208 ,  H01S5/0222 ,  H01S5/02248 ,  H01S5/02268 ,  H01S5/02284 ,  H01S5/02438 ,  H01S5/02446 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/12

摘要： An optical element module includes a casing having a bottom plate, a temperature-adjusting unit being mounted on the bottom plate in the casing and having at least a lower layer portion and an upper layer portion positioned above the lower layer portion, a support member mounted on the temperature-adjusting unit in the casing, and a semiconductor laser element being mounted on the support member and outputting a laser light to a forward side. The upper layer portion of the temperature-adjusting unit projects at a backward side of the semiconductor laser element relative to the lower layer portion.

摘要翻译： 光学元件模块包括具有底板的壳体，温度调节单元安装在壳体中的底板上，并且至少具有下层部分和位于下层部分上方的上层部分， 在壳体中的温度调节单元上，并且半导体激光元件安装在支撑构件上并向前侧输出激光。 温度调节单元的上层部分相对于下层部​​分在半导体激光元件的后侧突出。

公开(公告)号：US20150036705A1

公开(公告)日：2015-02-05

申请号：US14447214

申请日：2014-07-30

申请人： Sumitomo Electric Device Innovations, Inc.

发明人： Hirokazu TANAKA ,  Masao SHIBATA ,  Mitsuyoshi MIYATA

IPC分类号： H01S3/106

CPC分类号： H01S5/0687 ,  H01S5/02407 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02446 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/06804 ,  H01S5/1209 ,  H01S5/1212 ,  H01S5/34306

摘要： The method for controlling a wavelength-tunable laser comprises a first step of acquiring a driving condition of the wavelength-tunable laser for laser oscillation at a first wavelength, and a second step of calculating according to the driving condition of the first wavelength and a wavelength difference between the first wavelength and a second wavelength different from the first wavelength a control value or target value of a wavelength characteristic of the second wavelength in the wavelength detection unit, so as to calculate a driving condition for driving the wavelength-tunable laser, the second step including a step of selecting according to the wavelength difference one of etalon slopes having respective gradients identical and opposite to a gradient of an etalon slope used for controlling the first wavelength.

摘要翻译： 用于控制波长可调激光器的方法包括获取用于第一波长的激光振荡的波长可调激光器的驱动条件的第一步骤，以及根据第一波长的驱动条件和波长 波长检测单元中的与第一波长不同的第一波长与第二波长的波长特性的目标值之间的差，以计算用于驱动波长可调激光器的驱动条件， 第二步骤包括根据波长差选择具有与用于控制第一波长的标准斜率的梯度相同和相反的梯度的标准具斜率的步骤。

公开(公告)号：US08879589B2

公开(公告)日：2014-11-04

申请号：US13847405

申请日：2013-03-19

申请人： JDS Uniphase Corporation

发明人： Martin H. Muendel ,  Loren Eyres

IPC分类号： H01S3/10 ,  G02F1/35 ,  H01S5/06 ,  H01S5/062 ,  H01S5/068 ,  H01S5/00 ,  H01S5/024 ,  H01S3/067 ,  H01S3/16 ,  H01S5/12 ,  H01S5/40

CPC分类号： H01S5/06821 ,  G02F1/353 ,  G02F1/3544 ,  G02F2203/60 ,  H01S3/06754 ,  H01S3/1618 ,  H01S5/0092 ,  H01S5/02446 ,  H01S5/0604 ,  H01S5/0612 ,  H01S5/06216 ,  H01S5/0622 ,  H01S5/12 ,  H01S5/4006

摘要： A beam-stabilized laser system using optical frequency conversion in a nonlinear optical crystal is disclosed. An optimal phase-matching angle in the crystal depends on both wavelength and temperature. If the crystal temperature changes, the optimal phase-matching direction will change as well. A different wavelength can be selected so that the optimal phase-matching occurs along the original beam path and returns the output beam to the original direction. Thus, a central wavelength of the laser beam illuminating the nonlinear optical crystal can be slightly adjusted to compensate for the pointing drift. Since the illuminating wavelength can normally be tuned much faster than the crystal temperature, a more agile and responsive pointing stabilization can be achieved.

摘要翻译： 公开了一种在非线性光学晶体中使用光频变换的光束稳定激光系统。 晶体中的最佳相位匹配角取决于波长和温度。 如果晶体温度变化，最佳相位匹配方向也会发生变化。 可以选择不同的波长，使得沿着原始光束路径发生最佳相位匹配，并将输出光束返回到原始方向。 因此，可以稍微调整照射非线性光学晶体的激光束的中心波长以补偿指向漂移。 由于照明波长通常可以比晶体温度快得多，所以可以实现更灵敏和响应的指向稳定。