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1. 发明授权

EP3311509B1 CALIBRATION OF PLUGGABLE OPTICAL MODULE 有权转让
公开(公告)号：EP3311509B1
公开(公告)日：2018-12-12
申请号：EP16729345.5
申请日：2016-06-10
申请人： Oclaro Technology Limited
发明人： GRIFFIN, Robert
IPC分类号： H04B10/50 , G02F1/225 , H04B10/588
CPC分类号： H04B10/50572 , G02F1/21 , G02F1/225 , G02F2001/212 , H04B10/07955 , H04B10/5057 , H04B10/50575 , H04B10/564 , H04B10/588 , H04B2210/254
摘要： An optical communications apparatus comprising a host (100) and an optical module (200) comprising a Mach-Zehnder modulator (202), MZM, wherein the optical module is removably connected to the host via a connection path, the optical communications apparatus comprising: a signal generator (101) at the host, configured to generate a plurality of calibration signals at a plurality of frequencies; a host interface (102) configured to transmit the calibration signals to the optical module via the connection path; a module interface (201) configured to receive the transmitted calibration signals; wherein the MZM is configured to use the calibration signals to modulate a laser light source (206) and biased to a point at which average output power is proportional to the output modulated signal; an optical detector configured to measure an average magnitude of an output of the MZM when each of the calibration signals is used to modulate the laser light source; one of a host calibration unit (103) and a module calibration unit (203), configured to determine a magnitude response of the connection path based on the measured average magnitudes and magnitudes of the respective calibration signals, and further configured to determine a pre-emphasis characteristic based on the magnitude response, the pre-emphasis characteristic for application to signals transmitted by the optical transmitter in use.

2. 发明公开

EP3326026A4 ELECTRICAL CROSSTALK REDUCTION IN A HIGH-ORDER DIGITAL OPTICAL MODULATOR 有权
公开(公告)号：EP3326026A4
公开(公告)日：2018-07-25
申请号：EP16838466
申请日：2016-08-01
申请人： HUAWEI TECH CO LTD
发明人： GOODWILL DOMINIC JOHN
IPC分类号： G02F1/01 , G02F1/035
CPC分类号： G02F1/011 , G02F1/225 , H04B10/516 , H04B10/5561 , H04Q11/0005 , H04Q2011/0049
摘要： A digital optical modulator including a waveguide comprising a plurality of light paths, and a plurality of phase shifter segments, each optically coupled to a light path from the plurality of light paths, configured to modulate light carried in the plurality of light paths to generate a modulated light in response to an electrical drive signal, at least two of the plurality of phase shifter segments having the same length. A digital optical modulator comprising a first waveguide arm comprising a first end and a second end, a first plurality of phase shifter segments with at least two of the first plurality of phase shifter segments that are the same length optically coupled to the waveguide arm, and a second waveguide arm optically coupled to the first waveguide arm at the first end and the second end.

3. 发明公开

EP3311509A1 CALIBRATION OF PLUGGABLE OPTICAL MODULE 有权转让
标题翻译：可插式光模块的校准
公开(公告)号：EP3311509A1
公开(公告)日：2018-04-25
申请号：EP16729345.5
申请日：2016-06-10
申请人： Oclaro Technology Limited
发明人： GRIFFIN, Robert
IPC分类号： H04B10/50 , G02F1/225 , H04B10/588
CPC分类号： H04B10/50572 , G02F1/21 , G02F1/225 , G02F2001/212 , H04B10/07955 , H04B10/5057 , H04B10/50575 , H04B10/564 , H04B10/588 , H04B2210/254
摘要： An optical communications apparatus comprising a host (100) and an optical module (200) comprising a Mach-Zehnder modulator (202), MZM, wherein the optical module is removably connected to the host via a connection path, the optical communications apparatus comprising: a signal generator (101) at the host, configured to generate a plurality of calibration signals at a plurality of frequencies; a host interface (102) configured to transmit the calibration signals to the optical module via the connection path; a module interface (201) configured to receive the transmitted calibration signals; wherein the MZM is configured to use the calibration signals to modulate a laser light source (206) and biased to a point at which average output power is proportional to the output modulated signal; an optical detector configured to measure an average magnitude of an output of the MZM when each of the calibration signals is used to modulate the laser light source; one of a host calibration unit (103) and a module calibration unit (203), configured to determine a magnitude response of the connection path based on the measured average magnitudes and magnitudes of the respective calibration signals, and further configured to determine a pre-emphasis characteristic based on the magnitude response, the pre-emphasis characteristic for application to signals transmitted by the optical transmitter in use.

4. 发明公开

EP3306381A1 SEMICONDUCTOR OPTICAL MODULATION ELEMENT 有权
标题翻译：半导体光学调制元件
公开(公告)号：EP3306381A1
公开(公告)日：2018-04-11
申请号：EP16802809.0
申请日：2016-06-01
申请人： Nippon Telegraph And Telephone Corporation
发明人： OGISO, Yoshihiro , OZAKI, Josuke , KASHIO, Norihide , KIKUCHI, Nobuhiro , KOHTOKU, Masaki
IPC分类号： G02F1/025 , G02F1/225
CPC分类号： G02F1/2257 , G02F1/025 , G02F1/225 , G02F2001/212 , G02F2202/102 , G02F2202/107
摘要： To provide a Mach-Zehnder (MZ) type semiconductor optical modulation element that can be used as a modulator, which is ultrafast and excellent in electrical stability. A semiconductor optical modulation element of a Mach-Zehnder type that performs modulation of light using a refractive index modulation region where a refractive index of the light guided to an optical waveguide is modulated and an input and output region where multiplexing/demultiplexing of the light split in the refractive index modulation region is performed, characterized in that in the refractive index modulation region of the optical waveguide, an n-type clad layer, an i core layer, and a p-type clad layer are stacked in the order from a top layer on a substrate surface equivalent to a (100) plane of a sphalerite-type semi-insulating semiconductor crystal substrate, the n-type clad layer is formed in a ridge shape in an inverted mesa direction, and a capacitance- loaded electrode is provided on the n-type clad layer.
摘要翻译：提供一种可用作调制器的Mach-Zehnder（MZ）型半导体光调制元件，该调制器具有超高的电稳定性。一种Mach-Zehnder型的半导体光调制元件，其使用折射率调制区域对光进行调制，在该折射率调制区域中被引导到光波导的光的折射率被调制，以及输入和输出区域，其中光分裂的多路复用/多路分解在折射率调制区域中进行，其特征在于，在光波导的折射率调制区域中，n型覆盖层，i型芯层和p型覆盖层从顶部起依次堆叠在相当于闪锌矿型半绝缘半导体晶体基板的（100）平面的基板表面上形成n型包覆层，该n型包覆层以倒置的台面方向形成为脊状，并且设置电容负载电极在n型覆盖层上。

5. 发明公开

EP3282306A1 OPTICAL MODULATION DEVICE 审中-公开
标题翻译：光学调制装置
公开(公告)号：EP3282306A1
公开(公告)日：2018-02-14
申请号：EP17184376.6
申请日：2017-08-02
申请人： Sumitomo Electric Industries, Ltd.
发明人： FURUYA, Akira , TATSUMI, Taizo
IPC分类号： G02F1/01 , G02F1/21
CPC分类号： G02F1/2255 , G02B26/0841 , G02F1/01 , G02F1/0121 , G02F1/017 , G02F1/225 , G02F2001/212 , H01S3/00 , H04B10/5161
摘要： An optical modulation device includes: a Mach-Zehnder modulator including a semiconductor waveguide; a plurality of phase modulators that are spaced from each other; a first amplifier that is coupled with an input transmission line transmitting an electrical signal, has an input impedance substantially equal to a characteristic impedance of the input transmission line; a first interconnection that is coupled to the first amplifier and transmits the electrical signal to a first end of one of the plurality of phase modulators that is provided on an input side of the Mach-Zehnder modulator; a second interconnection that is coupled to the first amplifier and transmits the electrical signal to a first end of the other of the plurality of phase modulators that is provided on an output side of the Mach-Zehnder modulator; and a plurality of termination resistors respectively coupled to second ends of the plurality of phase modulators.
摘要翻译：一种光调制装置，包括：包含半导体波导的Mach-Zehnder调制器; 多个彼此间隔开的相位调制器; 与传输电信号的输入传输线耦合的第一放大器具有基本上等于输入传输线的特性阻抗的输入阻抗; 第一互连，所述第一互连耦合到所述第一放大器并且将所述电信号传输到所述多个相位调制器中的设置在所述Mach-Zehnder调制器的输入侧上的所述多个相位调制器中的一个的第一端; 第二互连，所述第二互连耦合到所述第一放大器并且将所述电信号传输到所述多个相位调制器中的所述另一个的第一端，所述第一端提供在所述Mach-Zehnder调制器的输出侧; 以及分别耦合到所述多个相位调制器的第二端的多个终端电阻器。

6. 发明公开

EP3259638A1 DITHER FREE BIAS CONTROL 有权转让
标题翻译：无差异偏置控制
公开(公告)号：EP3259638A1
公开(公告)日：2017-12-27
申请号：EP16706239.7
申请日：2016-02-17
申请人： Oclaro Technology Limited
发明人： GRIFFIN, Robert , HEFFNER, Brian L.
IPC分类号： G02F1/01 , G02F1/225 , H04B10/516 , H04B10/50
CPC分类号： G02F1/0123 , G02F1/225 , G02F1/2257 , G02F2001/212 , G02F2001/217 , G02F2201/58 , G02F2203/20 , H04B10/50575
摘要： A Mach-Zehnder modulator for modulating optical signals, and comprising: a plurality of modulating waveguide sections; at least one bias electrode in electrical communication with at least one modulating waveguide section and configured to apply at least one electrical bias signal to one or more of the modulating waveguide sections; and an output optical combiner comprising a plurality of inputs and a plurality of outputs, wherein the plurality of inputs of the combiner are in optical communication with output sides of the plurality of modulating waveguide sections, and wherein a plurality of the outputs of the combiner are monitor outputs.

7. 发明公开

EP3232588A1 OPTICAL TRANSMITTER 审中-公开
标题翻译：光学发射器
公开(公告)号：EP3232588A1
公开(公告)日：2017-10-18
申请号：EP14907713.3
申请日：2014-12-11
申请人： Mitsubishi Electric Corporation
发明人： SHINTAKU Hiroaki , ENOKI Kentaro
IPC分类号： H04B10/516
CPC分类号： G02F1/0123 , G02F1/225 , G02F2001/212 , G02F2201/58 , H04B10/25 , H04B10/516 , H04B10/54 , H04J14/02
摘要： Provided is an optical transmitter (12) that can obtain stable light output even when control of switching between outputting a modulation signal input into at least one optical modulator of a plurality of cascade-connected optical modulators and stopping outputting the modulation signal is executed. The optical transmitter (12) includes an optical modulator (110) configured to modulate input light and outputs a light signal (110b), a drive unit (111a) configured to output a modulation data signal (110a) to the optical modulator (110), and a bias controller (114) configured to perform feedback control of bias voltage applied to the optical modulator (110). During a modulation OFF operation of the optical modulator (110), the bias controller (114) switches a control target point from a first control target point to a second control target point and executes the feedback control.
摘要翻译：本发明提供一种光发送器（12），该光发送器（12）即使在执行向多个级联连接的光调制器中的至少一个光调制器输入的调制信号的输出和停止输出调制信号的切换控制的情况下，也能够获得稳定的光输出。光发射器（12）包括被配置为调制输入光并输出光信号（110b）的光调制器（110），被配置为向光调制器（110）输出调制数据信号（110a）的驱动单元（111a）以及偏置控制器（114），被配置为执行施加到光调制器（110）的偏置电压的反馈控制。在光调制器（110）的调制关闭操作期间，偏置控制器（114）将控制目标点从第一控制目标点切换到第二控制目标点并执行反馈控制。

8. 发明授权

EP2995978B1 SYSTEM AND METHOD FOR REDUCING COHERENT BACKSCATTER IN A STITCHED WAVEGUIDE INTEGRATED OPTIC CIRCUIT 有权
标题翻译：用于减少缝合波导集成光路中的相干背散射的系统和方法
公开(公告)号：EP2995978B1
公开(公告)日：2017-08-23
申请号：EP15183981.8
申请日：2015-09-05
申请人： Honeywell International Inc.
发明人： LEWIS, Jeffrey Earl
IPC分类号： G02B6/125 , G01C19/72 , G02B6/134
CPC分类号： G01C19/721 , G01C19/64 , G01C19/72 , G02B6/125 , G02B6/1342 , G02F1/0136 , G02F1/225
摘要： An integrated optical circuit comprises a first waveguide section of a first material having a first index of refraction, a second waveguide section diffused with a second material, different from the first material, the second waveguide section having a second index of refraction; and a third waveguide section of the first material. A portion of the first waveguide section at a first interface is angled at a first angle and a portion of the second waveguide section is angled at the first angle. A portion of the first waveguide section at a second interface is angled at a second angle and a portion of the third waveguide section is angled at the second angle. The first angle and second angle are selected such that the angle of incidence of light at the first and second interfaces is greater than the Brewster's angle.
摘要翻译：集成光路包括具有第一折射率的第一材料的第一波导段，用不同于第一材料的第二材料漫射的第二波导段，第二波导段具有第二折射率; 和第一材料的第三波导部分。第一界面处的第一波导部分的一部分以第一角度成角度并且第二波导部分的一部分以第一角度成角度。第二界面处的第一波导部分的一部分以第二角度成角度，并且第三波导部分的一部分以第二角度成角度。第一角度和第二角度被选择成使得在第一和第二界面处的光的入射角大于布儒斯特角。

9. 发明授权

EP2845048B1 CONTROLLING BIAS VOLTAGES FOR OPTICAL MODULATORS 有权
标题翻译： STEUERUNG DER VORSPANNUNGFÜROPTISCHE MODULATOREN
公开(公告)号：EP2845048B1
公开(公告)日：2017-03-01
申请号：EP13720509.2
申请日：2013-04-30
申请人： BAE Systems PLC
发明人： SMITH, Andrew James , NAWAZ, Mohammed , GILES, Simon, Charles
IPC分类号： G02F1/01 , G02F1/225 , G02F1/21
CPC分类号： G02F1/0123 , G02F1/225 , G02F1/2255 , G02F2001/212

10. 发明公开

EP3035113A4 POLARIZATION CONTROL DEVICE AND POLARIZATION CONTROL METHOD 审中-公开
标题翻译：偏振控制装置和偏振控制程序
公开(公告)号：EP3035113A4
公开(公告)日：2016-08-10
申请号：EP14892818
申请日：2014-05-23
申请人： HUAWEI TECH CO LTD
发明人： MA XIAO , HAO QINFEN , DENG XIANGYUAN
IPC分类号： G02F1/01 , G02B6/13 , G02F1/225
CPC分类号： G02B6/126 , G02B6/13 , G02B6/2726 , G02B6/2766 , G02B6/2773 , G02B6/278 , G02B6/29344 , G02B6/34 , G02F1/01 , G02F1/011 , G02F1/0121 , G02F1/0136 , G02F1/025 , G02F1/225 , G02F2001/217

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