公开(公告)号：US10250334B2

公开(公告)日：2019-04-02

申请号：US15919279

申请日：2018-03-13

申请人： Oclaro Japan, Inc.

发明人： Takuma Ban ,  Kazuhiro Komatsu

IPC分类号： H04B10/06 ,  H04B10/69 ,  H04B10/80 ,  H03F3/08 ,  G02B6/42

摘要： An optical receiver module includes light-receiving elements each having a first electrode and a second electrode to which a bias is applied, and converting input optical signals into electric signals and outputting the electric signals from the first electrodes, and a carrier having wiring patterns respectively electrically connecting to the light-receiving elements and supporting the light-receiving elements. The wiring pattern includes a first wiring line electrically connecting to the first electrode and a second wiring line electrically connecting to the second electrode. The second wiring line has a high resistance portion having a higher resistance value than the other portions at least in a position overlapping with the light-receiving element to be connected and a low resistance portion having a lower resistance value than the high resistance portion at least in a position not overlapping with any of the light-receiving elements.

公开(公告)号：US10236660B2

公开(公告)日：2019-03-19

申请号：US15926152

申请日：2018-03-20

申请人： Oclaro Japan, Inc.

发明人： Takayuki Nakajima ,  Kazuhiko Naoe

IPC分类号： H01S3/13 ,  H01S5/022 ,  H01S5/0687 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/024 ,  H01S5/40

摘要： A submount which has a mounting surface on which three or more semiconductor lasers are arranged in a first direction, and includes a heat generator configured to increase the temperatures of the three or more semiconductor lasers, in which, where the heat generator generates heat, a first heat of the heat absorbed by a first semiconductor laser of the three or more semiconductor lasers disposed at one end along the first direction is larger than a second heat of the heat absorbed by a second semiconductor laser of the three or more semiconductor lasers disposed to be adjacent to the first semiconductor laser on the mounting surface.

公开(公告)号：US10187157B2

公开(公告)日：2019-01-22

申请号：US15443016

申请日：2017-02-27

申请人： Oclaro Japan, Inc.

发明人： Kouji Nakahara

IPC分类号： H04B10/50 ,  H04J14/04 ,  H04B10/54 ,  G02B6/293 ,  G02F1/01 ,  G02B6/125 ,  G02B6/28 ,  G02B6/12

摘要： To provide an optical transmitter module with simplified control of a voltage to be applied to an optical modulator. An optical transmitter module includes a semiconductor laser for irradiating a laser beam; a demultiplexer for branching the laser beam to output branched light beams; optical modulators for modulating an optical amplitude of each of the branched light beams into a first optical amplitude or a second optical amplitude, depending on an input level at two levels; and a multiplexer for multiplexing output light beams from the optical modulators. The optical transmitter module may include optical waveguides for connecting the optical modulators and the multiplexer, and the optical waveguides may include a first optical waveguide for causing a first phase difference and a second optical waveguide for causing a second phase difference different from the first phase difference.

公开(公告)号：US10135223B2

公开(公告)日：2018-11-20

申请号：US15603864

申请日：2017-05-24

申请人： Oclaro Japan, Inc.

发明人： Daisuke Noguchi ,  Kazuhiro Komatsu

IPC分类号： H01S5/022 ,  H01S5/062 ,  H01S5/024

摘要： An optical module includes: a wiring substrate that has a wiring pattern including a connecting portion and is arranged on an optical subassembly so as to be electrically connected thereto; and a flexible insulating layer formed between the optical subassembly and the wiring substrate. The optical subassembly includes: a conductive stem that has a surface opposed to the wiring substrate, the conductive stem being shaped so that the surface has a through hole opened therein and being connected to a reference potential; and a signal lead for transmitting a signal, the signal lead passing through the through hole while being electrically insulated from the conductive stem. The signal lead passes through the flexible insulating layer to be joined to the connecting portion. The flexible insulating layer is in contact with the connecting portion, the signal lead, and the surface of the conductive stem.

公开(公告)号：US10048117B2

公开(公告)日：2018-08-14

申请号：US14522042

申请日：2014-10-23

申请人： OCLARO JAPAN, INC.

发明人： Koki Iemura ,  Michihide Sasada ,  Hiroyasu Sasaki

IPC分类号： G01J1/02 ,  G02B6/293 ,  G02B6/42 ,  G01J1/04 ,  G02B3/00

摘要： An optical receiver module includes: a lens array including a plurality of condenser lenses arranged in one direction to define a plane with optical axes in parallel to each other; and a light receiving element array including a plurality of light receiving elements each configured to receive light emitted from each of the condenser lenses. The light receiving element array includes: a semiconductor substrate to which the light from each of the condenser lenses is input and through which the light is transmitted; and light receiving portions each configured to receive the light transmitted through the semiconductor substrate and convert the light into an electrical signal. A shift of the optical axis of each of the condenser lenses from a center of each corresponding one of the light receiving portions is larger in a direction perpendicular to the one direction within the plane than in the one direction.

公开(公告)号：US10007075B2

公开(公告)日：2018-06-26

申请号：US15696653

申请日：2017-09-06

申请人： Oclaro Japan, Inc.

发明人： Fumihide Maeda ,  Hiroki Irie ,  Hiroyoshi Ishii ,  Toshikazu Ohtake

IPC分类号： G02B6/00 ,  G02B6/42

CPC分类号： G02B6/4274 ,  G02B6/4246 ,  G02B6/4256 ,  G02B6/4277 ,  G02B6/428 ,  G02B6/4284 ,  G02B6/4292 ,  G02B6/4293

摘要： The optical module includes a housing having a first opening for inputting or outputting a first electric signal, a second opening for inputting or outputting a second electric signal, and an optical signal port, one or more substrates disposed in the housing, to/from which the first electric signal is input/output and to/from which the second electric signal is input/output, an optical subassembly disposed in the housing and optically connected to the optical signal port, and a control circuit disposed in the housing and mounted on the substrate for controlling the optical subassembly, wherein the first electric signal is an electric signal input to or output from the optical subassembly, the second electric signal is an electric signal input to or output from the control circuit, and the second opening is provided on one side different from other side of the housing on which the first opening is provided.

公开(公告)号：US09880050B2

公开(公告)日：2018-01-30

申请号：US15072398

申请日：2016-03-17

申请人： Oclaro Japan, Inc.

发明人： Takayuki Hasegawa ,  Daisuke Murakami ,  Takeshi Yamashita

IPC分类号： G01J1/02 ,  G02B6/42 ,  G01J1/04

CPC分类号： G01J1/0214 ,  G01J1/0204 ,  G01J1/0271 ,  G01J1/0411 ,  G01J1/0414 ,  G02B6/4286

摘要： An optical transmission module includes: a package; a plurality of light-emitting elements each emitting light in the interior of the package; a beam splitter splitting the light into transmitted light and split light; a plurality of light-receiving elements each including a light-receiving surface on which the split light is incident in the interior of the package, for monitoring light outputs of the plurality of light-emitting elements; and a first light-shielding film provided between the plurality of light-emitting elements and the beam splitter and including a plurality of first holes for the light to propagate to the beam splitter, wherein the plurality of light-receiving elements are disposed with the light-receiving surfaces facing the beam splitter.

公开(公告)号：US09806821B2

公开(公告)日：2017-10-31

申请号：US15169796

申请日：2016-06-01

申请人： Oclaro Japan, Inc.

发明人： Atsushi Nakamura ,  Shunya Yamauchi ,  Yoriyoshi Yamaguchi ,  Noriko Sasada ,  Nozomu Yasuhara ,  Takayoshi Fukui ,  Hiroki Irie

IPC分类号： H04B10/54 ,  H01S5/12 ,  H04Q11/00 ,  H01S5/026 ,  H01S5/042 ,  H01S5/022

CPC分类号： H04B10/54 ,  H01L2224/48091 ,  H01S5/02248 ,  H01S5/0265 ,  H01S5/0425 ,  H01S5/12 ,  H04B10/541 ,  H04Q11/0003 ,  H01L2924/00014

摘要： Multilevel optical intensity modulation high in accuracy is performed using electro-absorption optical modulators. There is provided a plurality of EA modulators connected in series in a path of an optical signal from a light source, and a multilevel-coded modulated optical signal is generated by modulating an intensity of an input optical signal from the light source based on a modulation signal using the EA modulators. Each of the EA modulators is switched between an ON state and an OFF state of optical absorption in accordance with the modulation signal. Regarding an extinction ratio of the ON state to the OFF state in each of the EA modulators, the EA modulators have respective values difference from each other, and are arranged in ascending order of the extinction ratio from the light source side.

公开(公告)号：US09762026B2

公开(公告)日：2017-09-12

申请号：US15240022

申请日：2016-08-18

申请人： Oclaro Japan, Inc.

发明人： Kohichi Robert Tamura ,  Takanori Suzuki ,  Mitsuo Akashi ,  Shigehisa Tanaka ,  Hiroaki Inoue ,  Hiroyasu Sasaki

IPC分类号： G02B6/12 ,  H01S5/022 ,  G02B6/34 ,  H01S5/183 ,  H01S5/00 ,  H01S5/026 ,  G02B6/42

CPC分类号： H01S5/02248 ,  G02B6/34 ,  G02B6/4214 ,  G02B6/4271 ,  H01L2224/48463 ,  H01L2224/73265 ,  H01S5/0064 ,  H01S5/02276 ,  H01S5/02288 ,  H01S5/02292 ,  H01S5/0261 ,  H01S5/18388

摘要： An optical module includes a semiconductor optical device in which an active layer located at one side, an electrode located at the same side, and a mirror that reflects light toward the side opposite the electrode are monolithically integrated, a sub-mount having one surface on which a first wiring pattern is formed, a substrate in which an optical waveguide and a grating coupler are formed in a surface layer of the substrate, a spacer having an upper surface on which a second wiring pattern is formed, and a wire. The sub-mount is mounted on the spacer. The first wiring pattern on the sub-mount faces part of the second wiring pattern on the spacer and is electrically connected thereto. The second wiring pattern on the spacer includes a pad being disposed in a region exposed from the sub-mount and being bonded to the wire.

公开(公告)号：US09726914B2

公开(公告)日：2017-08-08

申请号：US15173761

申请日：2016-06-06

申请人： Oclaro Japan, Inc.

发明人： Atsushi Nakamura ,  Shunya Yamauchi ,  Noriko Sasada ,  Takayoshi Fukui ,  Nozomu Yasuhara

IPC分类号： G02F1/01 ,  G02F1/017 ,  H01S5/026 ,  G02F1/025 ,  G02F1/015 ,  H01S5/022 ,  H01S5/12

CPC分类号： G02F1/01708 ,  G02F1/0121 ,  G02F1/025 ,  G02F2001/0157 ,  H01L2224/48091 ,  H01S5/02248 ,  H01S5/02276 ,  H01S5/0265 ,  H01S5/12 ,  H01L2924/00014

摘要： Preferable simultaneous achievement of the target characteristics with respect to both of the modulation bandwidth and the extinction ratio in the optical intensity modulation using the electro-absorption optical modulator is realized with a simple circuit configuration. The modulator integrated semiconductor laser element includes a plurality of EA modulators disposed in series in an optical signal path, and each adapted to absorb light in accordance with an applied voltage. The modulator driver for supplying the EA modulator with the applied voltage is provided for each of the EA modulators. The plurality of modulator drivers generates the applied voltage common to the plurality of EA modulators in accordance with a control signal. The modulator lengths of the plurality of EA modulators are set so that the closer to the light source the EA modulator is, the shorter the modulator length is.