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    Optical modulator and optical transmitter
    63.
    发明授权
    Optical modulator and optical transmitter 有权
    光调制器和光发射机

    公开(公告)号：US09557624B2

    公开(公告)日：2017-01-31

    申请号：US14588684

    申请日：2015-01-02

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Masaki Sugiyama

    IPC: G02F1/225 ,  G02F1/03 ,  H04B10/50

    CPC classification number: G02F1/225 ,  G02F1/0316 ,  G02F2201/05 ,  H04B10/501 ,  H04B10/505

    Abstract: An optical modulator includes: a substrate that having an optical waveguide that includes a split section that splits light into two light waves, a pair of arms through which the light waves propagate, and a combining section that combines the light waves from the pair of arms with each other; and an electrode that overlaps part of the optical waveguide and generates an electric field by a voltage applied to the electrode. The optical waveguide has a narrow portion that is narrower than another portion of the optical waveguide and is arranged so that the electrode does not overlap with the narrow portion.

    Abstract translation: 光学调制器包括：具有光波导的基板，该光波导包括将光分成两个光波的分割部分，光波传播的一对臂，以及组合来自一对臂的光波的组合部分 彼此; 以及与光波导的一部分重叠并通过施加到电极的电压而产生电场的电极。 光波导具有比光波导的另一部分窄的狭窄部分，并且布置成使得电极不与窄部重叠。

    OPTICAL MODULATOR AND OPTICAL TRANSMITTER
    64.
    发明申请
    OPTICAL MODULATOR AND OPTICAL TRANSMITTER 有权
    光学调制器和光学发射器

    公开(公告)号：US20150117867A1

    公开(公告)日：2015-04-30

    申请号：US14588684

    申请日：2015-01-02

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Masaki SUGIYAMA

    IPC: G02F1/225 ,  H04B10/50

    CPC classification number: G02F1/225 ,  G02F1/0316 ,  G02F2201/05 ,  H04B10/501 ,  H04B10/505

    Abstract: An optical modulator includes: a substrate that having an optical waveguide that includes a split section that splits light into two light waves, a pair of arms through which the light waves propagate, and a combining section that combines the light waves from the pair of arms with each other; and an electrode that overlaps part of the optical waveguide and generates an electric field by a voltage applied to the electrode. The optical waveguide has a narrow portion that is narrower than another portion of the optical waveguide and is arranged so that the electrode does not overlap with the narrow portion.

    Abstract translation: 光学调制器包括：具有光波导的基板，该光波导包括将光分成两个光波的分割部分，光波传播的一对臂，以及组合来自一对臂的光波的组合部分 彼此; 以及与光波导的一部分重叠并通过施加到电极的电压而产生电场的电极。 光波导具有比光波导的另一部分窄的狭窄部分，并且布置成使得电极不与窄部重叠。

    Optical Modulation Element
    65.
    发明申请
    Optical Modulation Element 有权
    光调制元件

    公开(公告)号：US20140010493A1

    公开(公告)日：2014-01-09

    申请号：US14021148

    申请日：2013-09-09

    Applicant: NGK INSULATORS, LTD.

    Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

    IPC: G02F1/035

    CPC classification number: G02F1/035 ,  G01N15/1434 ,  G02B6/122 ,  G02F1/2252 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/05 ,  G02F2201/063 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/28 ,  G02F2203/21 ,  G02F2203/50 ,  G02F2203/60

    Abstract: An optical modulation device 1 includes a supporting body 2 including a pair of grooves 2b, 2c and a protrusion 2d between the grooves, a ridge par 6 including a channel type optical wave guide capable of multi mode propagation, a first side plate part 3A formed in a first side of the ridge part 6, a second side plate part 3B formed in a second side of the ridge part, a first adhesive layer 4A adhering the first side plate part 3A and the supporting body 2, a second adhesive layer 4B adhering the second side plate part 3B and the supporting body 2, and a third adhesive layer 4C adhering the ridge part 6 and the protrusion 2d. The device 1 further includes a first electrode 7A provided on a side face 6b of the ridge part on the first groove side, and a side face 3b and an upper face 3c of the first side plate part, and a second electrode 7B provided on a side face 6c of the ridge part 6 in the second groove side, the second groove 2c and a side face 3b and an upper face 3c of the second side plate part 3B. The first electrode 7A and the second electrode 7B apply a modulation voltage modulating light propagating in the channel type optical wave guide.

    Abstract translation: 光调制装置1包括支撑体2，该支撑体2包括一对槽2b，2c和槽之间的突起2d，包括能够进行多模传播的通道型光波导的脊6，形成的第一侧板部3A 在脊部6的第一侧，形成在脊部的第二侧的第二侧板部3B，附着有第一侧板部3A和支撑体2的第一粘合层4A，附着有第二粘合层4B的第二粘合层4B 第二侧板部3B和支撑体2，以及粘附脊部6和突起2d的第三粘合层4C。 装置1还包括设置在第一槽侧的脊部的侧面6b上的第一电极7A和第一侧板部的侧面3b和上表面3c，以及设置在第一槽部侧的第二电极7B 第二槽侧的脊部6的侧面6c，第二槽2c和侧面3b以及第二侧板部3B的上表面3c。 第一电极7A和第二电极7B施加在通道型光波导中传播的调制电压调制光。

    Ultra low loss waveguide for broadband Terahertz radiation
    66.
    发明授权
    Ultra low loss waveguide for broadband Terahertz radiation 有权
    用于宽带太赫兹辐射的超低损耗波导

    公开(公告)号：US08259022B2

    公开(公告)日：2012-09-04

    申请号：US12434454

    申请日：2009-05-01

    Applicant: Rajind Mendis ,  Daniel M. Mittleman

    Inventor： Rajind Mendis ,  Daniel M. Mittleman

    IPC: H01Q13/10

    CPC classification number: H01P3/12 ,  G02F2201/05 ,  G02F2203/13 ,  G02F2203/58

    Abstract: An apparatus comprising a parallel plate waveguide (PPWG) comprising two plates separated by a distance that supports a multimode wave, and a transmitter configured to emit a wave having a frequency from about one hundred Gigahertz (GHz) to about ten terahertz (THz) and to couple to one mode of the PPWG. Also disclosed is an apparatus comprising two plates substantially parallel to one another and separated by at least about five millimeters (mm), and an antenna coupled to the two plates and configured to transmit or receive a wave having a frequency from about one hundred GHz to about ten THz. Disclosed is a method comprising polarizing an electromagnetic beam in the first transverse electric (TE1) mode with respect to a PPWG comprising two plates, adjusting the diameter of the electromagnetic beam based on the separation between the plates, and sending the electromagnetic beam into the PPWG.

    Abstract translation: 一种包括平行板波导（PPWG）的装置，包括分开支撑多模波的距离的两个板，以及发射器，被配置为发射具有从大约一千兆赫（GHz）到大约十兆赫（THz）的频率的波，以及 结合PPWG的一种模式。 还公开了一种包括彼此基本上彼此平行并且分开至少约五毫米（mm）的两个板的装置，以及耦合到两个板的天线，并且被配置为将频率从大约一百GHz的波发送到 约十THz。 公开了一种方法，其包括使第一横向电（TE1）模式中的电磁束相对于包括两个板的PPWG偏振，基于板之间的间隔调节电磁束的直径，并将电磁束发送到PPWG 。

    All-optical flip-flop
    67.
    发明授权
    All-optical flip-flop 失效
    全光触发器

    公开(公告)号：US07292746B2

    公开(公告)日：2007-11-06

    申请号：US10799786

    申请日：2004-03-12

    Applicant: Yoshiaki Nakano ,  Mitsuru Takenaka

    Inventor： Yoshiaki Nakano ,  Mitsuru Takenaka

    IPC: G02B6/26

    CPC classification number: G02F3/026 ,  G02F1/0126 ,  G02F3/00 ,  G02F2001/217 ,  G02F2201/05

    Abstract: The present invention provides a set-reset flip-flop operating in an all-optical manner. In this invention, a set pulse is inputted from the setting port. In doing so, only oscillation in set mode is generated at the multi-mode interference portion in a waveguide. As a result, a non-inverting output Q is obtained from the non-inverting output port. This state is then continued even if the set pulse input goes off. Next, a reset pulse is inputted to the resetting port. In doing so, at the multi-mode interference portion, oscillation of light in the set mode is halted, and oscillation in the reset mode occurs. As a result, it is possible to obtain an inverting output Q-bar from the inverting output port. This state is then continued even if the reset pulse goes off.

    Abstract translation: 本发明提供一种以全光学方式工作的设定复位触发器。 在本发明中，从设定口输入设定脉冲。 在这样做时，在波导管的多模干涉部分仅产生设定模式的振荡。 结果，从非反相输出端口获得非反相输出端Q。 即使设置的脉冲输入关闭，该状态仍然继续。 接下来，将复位脉冲输入到复位端口。 这样做时，在多模干涉部分中，停止设定模式的光的振荡，并且发生复位模式的振荡。 结果，可以从反相输出端口获得反相输出Q-bar。 即使复位脉冲关闭，该状态仍然继续。

    Laser device
    68.
    发明申请
    Laser device 审中-公开
    激光设备

    公开(公告)号：US20070121685A1

    公开(公告)日：2007-05-31

    申请号：US11604213

    申请日：2006-11-27

    Applicant: Keisuke Maekawa

    Inventor： Keisuke Maekawa

    IPC: H01S3/10

    CPC classification number: G02F1/3775 ,  G02F2201/05 ,  G02F2202/20 ,  H01S5/005 ,  H01S5/0092 ,  H01S2302/00

    Abstract: A laser device emits a higher harmonic wave of multi-longitudinal mode laser light and is capable of realizing higher efficiency and higher performance in a simple and economical fashion. The laser device includes a light source formed from a semiconductor laser emitting a fundamental wave in multi-longitudinal mode, and a wavelength converting element formed from a polarization inversion element provided with two or more of polarization inversion regions, and each region has a period Δ that corresponds to the longitudinal mode constructing the fundamental wave, and the higher harmonic wave obtained by the polarization inversion element is in multi-longitudinal mode.

    Abstract translation: 激光装置发射多纵模式激光的高次谐波，能够以简单和经济的方式实现更高的效率和更高的性能。 激光装置包括由多纵向模式发射基波的半导体激光器形成的光源和由设置有两个或更多个偏振反转区域的偏振反转元件形成的波长转换元件，并且每个区域具有周期Delta 对应于构成基波的纵向模式，并且由偏振反转元件获得的高次谐波处于多纵向模式。

    Optical digital-to-analog converter and method of optically converting digital data to analog form
    69.
    发明申请
    Optical digital-to-analog converter and method of optically converting digital data to analog form 有权
    光数字到模拟转换器和将数字数据光学转换为模拟形式的方法

    公开(公告)号：US20070116461A1

    公开(公告)日：2007-05-24

    申请号：US11284865

    申请日：2005-11-22

    Applicant: Young-Kai Chen ,  Andreas Leven

    Inventor： Young-Kai Chen ,  Andreas Leven

    IPC: H04J14/00

    CPC classification number: H04B10/66 ,  G02F7/00 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2201/05

    Abstract: An optical digital-to-analog (D/A) converter and a method of optically converting digital data into analog form. In one embodiment, the optical D/A converter includes: (1) a splitter configured to receive and split an input coherent optical carrier into a plurality of mutually coherent optical carriers, (2) a switching stage coupled to the splitter and including a corresponding plurality of selector switches configured to pass or interrupt selected ones of the plurality of coherent optical carriers responsive to pattern bits, (3) an amplitude and phase offset stage coupled to the switching stage and including a corresponding plurality of amplitude and phase offset units configured to offset amplitudes or phases of passed ones of the plurality of mutually coherent optical carriers responsive to offset signals and (4) a combiner coupled to the amplitude and phase offset stage and configured to recombine the mutually coherent optical carriers to yield an optical output signal.

    Abstract translation: 光数字模拟（D / A）转换器和将数字数据光学转换为模拟形式的方法。 在一个实施例中，光学D / A转换器包括：（1）分配器，被配置为将输入相干光载波接收并分离成多个相互相干的光载波，（2）耦合到分离器的切换级并且包括相应的 多个选择器开关，其被配置为响应于图案位传递或中断所述多个相干光载波中的选定的一个;（3）耦合到所述切换级的幅度和相位偏移级，并且包括对应的多个幅度和相位偏移单元， 响应于偏移信号，多个相互相干光载波中经过的相位偏移幅度或相位的偏移幅度或相位;（4）耦合到幅度和相位偏移级的组合器，并被配置为重组相互相干的光载波以产生光输出信号。

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