公开(公告)号：US20190212511A1

公开(公告)日：2019-07-11

申请号：US16353601

申请日：2019-03-14

申请人： Michael Mack ,  Mark Peterson ,  Steffen Gloeckner ,  Adithyaram Narasimha ,  Roger Koumans ,  Peter DeDobbelaere

发明人： Michael Mack ,  Mark Peterson ,  Steffen Gloeckner ,  Adithyaram Narasimha ,  Roger Koumans ,  Peter DeDobbelaere

IPC分类号： G02B6/43 ,  H04B10/50 ,  G02B26/10 ,  G02B6/42 ,  G02B6/34

CPC分类号： G02B6/43 ,  G02B6/305 ,  G02B6/32 ,  G02B6/34 ,  G02B6/4208 ,  G02B6/4214 ,  G02B26/105 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/187 ,  H04B10/503

摘要： Methods and systems for a light source arrangement supporting direct coupling to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip are disclosed. The arrangement may include a laser, a microlens, a turning mirror, reciprocal and/or non-reciprocal polarization rotators, and an optical bench. The laser may generate an optical signal that may be focused utilizing the microlens. The optical signal may be reflected at an angle defined by the turning mirror, and may be transmitted out of the light source arrangement to one or more grating couplers in the chip. The laser may include a feedback insensitive laser. The light source arrangement may include two electro-thermal interfaces between the optical bench, the laser, and a lid affixed to the optical bench. The turning mirror may be integrated in a lid affixed to the optical bench or may be integrated in the optical bench.

公开(公告)号：US20190207702A1

公开(公告)日：2019-07-04

申请号：US15858449

申请日：2017-12-29

申请人： Nokia Solutions and Networks OY

发明人： Doutje van Veen ,  Vincent Houtsma

IPC分类号： H04J14/08 ,  H04B10/61 ,  H04B10/50 ,  H04B10/27 ,  H04B10/572

CPC分类号： H04J14/08 ,  H04B10/27 ,  H04B10/272 ,  H04B10/503 ,  H04B10/572 ,  H04B10/61 ,  H04B10/616 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0282 ,  H04Q11/0067

摘要： A coherent optical receiver capable of receiving data encoded in optical bursts whose optical power can vary significantly from burst to burst. In an example embodiment, the coherent optical receiver comprises a variable optical attenuator connected between an optical local oscillator and an optical hybrid and configured to controllably vary the intensity of the local-oscillator signal in response to a control signal generated by a control circuit. In an example embodiment, the control circuit is configured to generate the control signal for the variable optical attenuator using power-control settings read from a memory and further using a transmission schedule according to which different remote optical transmitters are scheduled to transmit their respective optical bursts. The power-control settings can be loaded into the memory, e.g., using a suitable calibration method configured to determine a respective nearly optimal coherent gain for receiving data from each of the remote optical transmitters.

公开(公告)号：US20190190608A1

公开(公告)日：2019-06-20

申请号：US16226040

申请日：2018-12-19

申请人： Finisar Corporation

发明人： Nicolae CHITICA ,  Jürgen HAUENSCHILD ,  Theron JONES ,  David NIDELIUS ,  Lennart LUNDQVIST ,  Elisabeth KÄLLÉN ,  Odd STEIJER ,  Marek CHACINSKI ,  Åsa JOHANSSON ,  Andrei KAIKKONEN

IPC分类号： H04B10/40 ,  H01S5/42 ,  H01S5/024 ,  H01S5/068 ,  H01S5/026 ,  H04B10/50

CPC分类号： H04B10/40 ,  G02B6/4273 ,  H01S5/02248 ,  H01S5/02296 ,  H01S5/02438 ,  H01S5/02446 ,  H01S5/02469 ,  H01S5/0261 ,  H01S5/0262 ,  H01S5/06226 ,  H01S5/06817 ,  H01S5/423 ,  H04B10/503

摘要： An integrated optical transceiver, comprising a laser component, comprising an array of VCSEL diodes formed on a laser diode substrate; a laser driving component, comprising laser diode driving circuitry formed on a laser driving circuitry substrate; a photodiode component, comprising an array of photodiodes formed on a photodiode substrate; and a photodiode driving component, comprising photodiode driving circuitry formed on a photodiode driving circuitry substrate; a first heat sink comprising a connected piece of material to transport excess heat away from the integrated optical transceiver and connected to both the laser and photodiode driving components; and an electrically insulating material separating the photodiode substrate from the first heat sink and being air or dielectric material with a relative dielectric constant ε

公开(公告)号：US20190056290A1

公开(公告)日：2019-02-21

申请号：US16166381

申请日：2018-10-22

申请人： SOLiD, INC.

发明人： Kee-Woon NA

IPC分类号： G01M11/00 ,  H04B10/50 ,  H04B10/071 ,  H04B10/07 ,  H01S5/14 ,  H01S5/0687 ,  H01S5/00

CPC分类号： G01M11/3127 ,  H01S5/0064 ,  H01S5/0687 ,  H01S5/146 ,  H04B10/07 ,  H04B10/071 ,  H04B10/503

摘要： The present invention relates to an optical time domain reflectometer using, as a optical source, a polymer wavelength tunable laser which tunes the wavelength of an optical signal by using polymer grating. The optical time domain reflectometer of the present invention tunes the wavelength of a polymer wavelength tunable laser that outputs a constant optical signal and inspects cutting, reflection, and damage of an optical line by separating an optical signal returning from the optical line by an optical filter having a specific central wavelength. Since a optical source having a constant light intensity is used, the present invention has an effect of reducing the nonlinear effect generated in an optical line.

公开(公告)号：US20180375586A1

公开(公告)日：2018-12-27

申请号：US16015281

申请日：2018-06-22

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Ross Schermer ,  Jason D. McKinney

IPC分类号： H04B10/524 ,  H04B10/50 ,  H04B10/67

CPC分类号： H04B10/524 ,  H04B10/503 ,  H04B10/60 ,  H04B10/67 ,  H04B2210/006

摘要： Systems and methods are provided for non-uniform optical sampling with wider optical bandwidth and lower timing jitter than conventional systems, which can make non-uniform optical sampling more feasible. Embodiments of the present disclosure further provide systems and methods for determining all input signal frequencies, including those left ambiguous by prior methods.

公开(公告)号：US20180331776A1

公开(公告)日：2018-11-15

申请号：US16023632

申请日：2018-06-29

申请人： Huawei Technologies Co., Ltd.

发明人： Chuanbiao WANG ,  Zhenwei CUI ,  Xiaojun ZENG ,  Xi HUANG

IPC分类号： H04J14/02 ,  H04B10/50 ,  H04B10/25 ,  H04B10/516

CPC分类号： H04J14/02 ,  H04B10/25 ,  H04B10/503 ,  H04B10/5161

摘要： Embodiments of the present invention disclose an optical signal transmission method, apparatus, and system. The apparatus includes a short wavelength division multiplexer, a signal processor, a first linear driver, a second linear driver, a first transmitter, and a second transmitter. The signal processor is configured to perform bit rate allocation and code pattern modulation on a received binary signal, to obtain a first electrical signal to be sent to the first linear driver and a second electrical signal to be sent to the second linear driver. It can be learnt that, by implementing the embodiments of the present invention, a quantity of wavelengths transmitted in a multimode optical fiber can be reduced by performing bit rate allocation on a binary signal, thereby reducing interference between channels in the optical fiber for optical signal transmission.

公开(公告)号：US20180278336A1

公开(公告)日：2018-09-27

申请号：US15923129

申请日：2018-03-16

申请人： FUJITSU LIMITED

发明人： GUOXIU HUANG ,  Setsuo Yoshida ,  Takeshi Hoshida ,  Hisao Nakashima ,  Shoichiro Oda

IPC分类号： H04B10/564 ,  H04B10/532

CPC分类号： H04B10/564 ,  H04B10/2569 ,  H04B10/2572 ,  H04B10/503 ,  H04B10/532 ,  H04B10/6162 ,  H04J14/08

摘要： A method of controlling a transmission signal, includes transmitting a training signal including four polarization states having a given relation; and performing rotation control and transmission power level control of a polarization component of a data signal, based on a rotation control matrix for a polarization state and an inverse-operation control matrix for a power level imbalance, which are estimated from Stokes parameters related to input power level present on a Poincare sphere acquired from the training signal and Stokes parameters related to output power level present on the Poincare sphere.

公开(公告)号：US20180269991A1

公开(公告)日：2018-09-20

申请号：US15923900

申请日：2018-03-16

申请人： Attochron, LLC

发明人： Thomas Malcolm Chaffee ,  Paul F. Szajowski

IPC分类号： H04B10/80 ,  H04B10/11

CPC分类号： H04B10/807 ,  H04B10/11 ,  H04B10/118 ,  H04B10/40 ,  H04B10/503

摘要： This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.

公开(公告)号：US20180248625A1

公开(公告)日：2018-08-30

申请号：US15962687

申请日：2018-04-25

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Francesco Testa ,  Antonio D'Errico ,  Ernesto Ciaramella ,  Luca Giorgi ,  Wei-Ping Huang ,  Marco Presi

IPC分类号： H04B10/2569 ,  H04B10/50

CPC分类号： H04B10/2569 ,  H04B10/50 ,  H04B10/503

摘要： An optical source comprises a first laser arranged to generate a first optical signal having a first state of polarization (SOP) and a first optical frequency; a second laser arranged to generate a second optical signal having a second SOP, substantially orthogonal to the first SOP, and having a second optical frequency, different from the first optical frequency by a preselected frequency difference; a polarisation beam coupler arranged to combine the first optical signal and the second optical signal into a composite optical signal comprising both the first optical signal and the second optical signal having said substantially orthogonal SOPs; and an output arranged to output the composite optical signal.

公开(公告)号：US20180198549A1

公开(公告)日：2018-07-12

申请号：US15916557

申请日：2018-03-09

申请人： Elenion Technologies, LLC

发明人： Thomas Baehr-Jones ,  Yang Liu ,  Ran Ding

IPC分类号： H04J14/02 ,  H04B10/54 ,  H04B10/50

CPC分类号： H04J14/02 ,  H04B10/503 ,  H04B10/506 ,  H04B10/54

摘要： A transmitter comprising a plurality of modulator and multiplexer (Mod-MUX) units, each Mod-MUX unit operating at an optical wavelength different from the other Mod-MUX units. The transmitter can additional include in each Mod-MUX unit two optical taps and three photodetectors that are configured to allow the respective Mod-MUX unit to be tuned to achieve thermal stabilization and achieve effective modulation and WDM operation across a range of temperatures. The Mod-MUX transmitter avoids the use of a frequency comb. The Mod-MUX transmitter avoids cross-modulation between different modulators for different laser signals.