光導波路デバイス
    2.
    发明申请
    光導波路デバイス 审中-公开
    光波器件

    公开(公告)号:WO2005111703A1

    公开(公告)日:2005-11-24

    申请号:PCT/JP2005/007942

    申请日:2005-04-20

    CPC classification number: G02F1/2255 G02F1/0356 G02F2203/25

    Abstract:  第一の接地電極10および信号電極11によって光導波路の第一の分岐部3aに対して電圧を印加し、第二の接地電極12Aおよび信号電極11によって第二の分岐部3bに対して電圧を印加する。第一の接地電極10と信号電極11との間に第一のギャップ13が形成されており、第二の接地電極12Aと信号電極11との間に第二のギャップ14が形成されている。第一のギャップ13および第二のギャップ14が、電圧印加部13a、14a、フィードスルー部およびこ接続部13b、14bに分かれており、(G 12 /G 11 ≦G 22 /G 21 <G 32 /G 31 )を満足する。G 11 は、接続部13bにおける第一のギャップ13の幅であり、G 12 は、接続部14bにおける第二のギャップ14の幅であり、G 21 は接続部分側末端13cにおけるギャップ13の幅であり、G 22 は接続部分側末端14cにおけるギャップ14の幅であり、G 31 は電圧印加部13aにおける第一のギャップ13の幅であり、G 32 は電圧印加部14aにおけるギャップ14の幅である。

    Abstract translation: 通过第一接地电极(10)和信号电极(11)将电压施加到光波导的第一分支部分(3a),并且通过第二接地电极将电压施加到第二分支部分(3b) (12A)和信号电极(11)。 在第一接地电极(10)和信号电极(11)之间形成第一间隙(13),在第二接地电极(12A)和信号电极(11)之间形成第二间隙(14)。 第一间隙(13)和第二间隙(14)分为电压施加部(13a,14a),馈通部和连接部(13b,14b),满足(G12 / G11 <= G22 / G21 < G32 / G31),其中G11是连接部分(13b)处的第一间隙(13)的宽度,G12是连接部分(14b)处的第二间隙(14)的宽度,G 21是 在连接部分边缘(13c)处的间隙(13),G22是连接部分边缘(14c)处间隙(14)的宽度,G31是电压施加部分(13a)处的第一间隙(13)的宽度 ),G32是电压施加部(14a)的间隙(14)的宽度。

    DIELECTRIC WAVEGUIDE GAS-FILLED STARK SHIFT MODULATOR
    3.
    发明申请
    DIELECTRIC WAVEGUIDE GAS-FILLED STARK SHIFT MODULATOR 审中-公开
    电介质波导气体填充STOCK SHIFT调制器

    公开(公告)号:WO2003040822A1

    公开(公告)日:2003-05-15

    申请号:PCT/US2002/035356

    申请日:2002-11-05

    CPC classification number: G02F1/011 G02B6/032 G02F1/174 G02F2203/25

    Abstract: An optical modulator includes a dielectric waveguide (210) for receiving an optical beam (225) and coupling energy of the optical beam into the waveguide. At least one Stark material is provided in the waveguide. A bias circuit generates a bias signal to produce an electrical field across the Stark material to shift at least one of the Stark absorption frequencies towards the frequency of the optical beam. A circuit for producing a time varying electric field across the Stark material modulates the optical beam. The electric fields are produced between electrodes (215) provided on the outside of the waveguide. At least a portion of the bias field can be generated by an alternating bias signal, such as a square wave. A method of modulating optical signals includes the steps of providing a dielectric waveguide for receiving an optical beam and coupling energy of the optical beam into the waveguide, the waveguide having at least one Stark material disposed therein, and varying an electric field imposed across the Stark material.

    Abstract translation: 光学调制器包括用于接收光束(225)并将光束的能量耦合到波导中的电介质波导(210)。 在波导中提供至少一个斯塔克材料。 偏置电路产生偏置信号以在斯塔克材料之间产生电场,以将斯塔克吸收频率中的至少一个朝向光束的频率移动。 用于产生跨越斯塔克材料的时变电场的电路调制光束。 在设置在波导管外侧的电极(215)之间产生电场。 偏置场的至少一部分可以由诸如方波的交替偏置信号产生。 调制光信号的方法包括以下步骤:提供用于接收光束并将光束耦合到波导中的能量的介质波导,该波导具有设置在其中的至少一个斯塔克材料,以及改变施加在斯塔克 材料。

    OPTICAL MODULATOR
    4.
    发明申请
    OPTICAL MODULATOR 审中-公开
    光学调制器

    公开(公告)号:WO02050606A1

    公开(公告)日:2002-06-27

    申请号:PCT/GB2001/005582

    申请日:2001-12-18

    CPC classification number: G02F1/225 G02F2203/25

    Abstract: An optical modulator 1 has an optical input signal waveguide 2, first and second interferometric waveguide arms 6, 8, a modulated output signal waveguide 12, a splitter 4 for dividing the input optical signal between the first and second arms 6, 8, and a combiner 10 for re-combining the signals transmitted along each of the first and second arms 6, 8 into the output signal waveguide 12. The modulator 1 further has first and second electrodes 14, 16 each of a segmented structure having a plurality of elements 18, 20 each extending from a respective one of the first and second electrodes 14, 16. The elements 18, 20 of each of the first and second electrodes 14, 16 each have a first part 30, 32 positioned such as to have an electro optic effect on a signal transmitted through the corresponding one of the first and second arms 6, 8 and at least a proportion of the elements 18, 20 of the first electrode 14 each have a second part 34 positioned such as to have limited or no electro optic effect on a signal transmitted through the first arm 6.

    Abstract translation: 光调制器1具有光输入信号波导2,第一和第二干涉波导臂6,8,调制输出信号波导12,用于将第一和第二臂6,8之间的输入光信号分离的分离器4和 组合器10,用于将沿着第一和第二臂6,8中的每一个传输的信号重新组合到输出信号波导12中。调制器1还具有第一和第二电极14,16,每个电极具有多个元件18 ,每个从第一和第二电极14,16中的相应一个延伸出来。每个第一和第二电极14,16的元件18,20各自具有第一部分30,32,其定位成具有电光学 对通过第一和第二臂6,8中相应的一个传输的信号的影响,并且第一电极14的元件18,20的至少一部分各自具有第二部分34,第二部分34被定位成具有有限的或没有电光学 EFF 例如通过第一臂6传输的信号。

    OPTICAL MODULATORS WITH CONTROLLABLE CHIRP
    5.
    发明申请
    OPTICAL MODULATORS WITH CONTROLLABLE CHIRP 审中-公开
    光纤调制器与可控CHIRP

    公开(公告)号:WO2011112360A3

    公开(公告)日:2011-12-22

    申请号:PCT/US2011025984

    申请日:2011-02-24

    Abstract: A semiconductor-based optical modulator is presented that includes a separate phase control section to adjust the amount of chirp present in the modulated output signal. At least one section is added to the modulator configuration and driven to create a pure "phase" signal that will is added to the output signal and modify the e if term inherent in the modulation function. The phase modulation control section may be located within the modulator itself (with one segment on each arm, driven by the same input signal), or may be disposed "outside" of the modulator on either the input waveguiding section or the output waveguiding section. The phase control section may be formed to comprise multiple segments (of different lengths), with the overall phase added to the propagating signal controlled by selecting the different segments to be energized to impart a phase delay to a signal propagating through the energized section(s).

    Abstract translation: 提出了一种基于半导体的光调制器,其包括单独的相位控制部分,以调节调制输出信号中存在的啁啾量。 至少一个部分被添加到调制器配置并被驱动以产生将被添加到输出信号并且修改调制功能中固有的e的纯“相”信号。 相位调制控制部分可以位于调制器本身内(每个臂上的一个段由相同的输入信号驱动),或者可以设置在输入波导部分或输出波导部分上的调制器的“外部”。 相位控制部分可以被形成为包括多个段(不同长度),其中通过选择不同的被激励的段来控制传播信号的总相位,以对传播通过激励部分的信号施加相位延迟 )。

    SYSTEM AND METHOD FOR CHIRPED PULSE INTERFEROMETRY
    6.
    发明申请
    SYSTEM AND METHOD FOR CHIRPED PULSE INTERFEROMETRY 审中-公开
    用于串扰脉冲干涉的系统和方法

    公开(公告)号:WO2009079759A1

    公开(公告)日:2009-07-02

    申请号:PCT/CA2008/002199

    申请日:2008-12-19

    Applicant: RESCH, Kevin

    Inventor: RESCH, Kevin

    Abstract: The device is based on a cross-correlator which measures the signal between a pair of oppositely chirped laser pulses. Two laser pulses, one with a positive chirp and one with a negative chirp, are mixed on a beamsplitter. The two resulting beams pass through a reference or a sample arm and are subsequently mixed on a non-lmear crystal. The signal from the interferometer is the sum frequency generation produced in that crystal. The reference arm contains a moveable delay which is used to change the relative timing of the two beams in the interferometer. The sum frequency generation in the narrow band of frequencies is the signal from the device and is measured as a function of the delay. Alternatively, a pure dispersive phase shift could be used in place of the two laser pulses.

    Abstract translation: 该装置基于互相关器,其测量一对相对啁啾的激光脉冲之间的信号。 两个激光脉冲,一个具有正啁啾和一个具有负啁啾的激光脉冲,在分束器上混合。 所得到的两个光束通过参考或样品臂,随后在非晶体晶体上混合。 来自干涉仪的信号是在该晶体中产生的和频产生。 参考臂包含可移动延迟,用于改变干涉仪中的两个光束的相对定时。 窄频带中的和频产生是来自该装置的信号,并作为延迟的函数进行测量。 或者,可以使用纯色散相移代替两个激光脉冲。

    ELECTROABSORPTION MODULATOR WITH TWO SECTIONS
    7.
    发明申请
    ELECTROABSORPTION MODULATOR WITH TWO SECTIONS 审中-公开
    具有两个部分的电子调制器

    公开(公告)号:WO2003062910A1

    公开(公告)日:2003-07-31

    申请号:PCT/GB2003/000116

    申请日:2003-01-15

    Abstract: The invention relates to an electroabsorption modulator (EAM) (300), comprising a first EAM section (302) optically coupled to a second EAM section (304), a transition wavelength in the electroabsorption (EA) spectrum of the first EAM section (302), at which absorption changes substantially, being different to a transition wavelength in the EA spectrum of the second EAM section (304). The EAM (300) compensates for chirp (which is caused by intrinsic absorption effects) by driving the two sections with a signal (312) generated from a common modulating signal (314). The driving signal (312) at the first EAM section (302) being preferably in anti-phase with the driving signal (312) at the second EAM section (304).

    Abstract translation: 本发明涉及电吸收调制器(EAM)(300),其包括光耦合到第二EAM部分(304)的第一EAM部分(302),第一EAM部分(302)的电吸收(EA)光谱中的跃迁波长 ),其吸收基本变化,不同于第二EAM部分(304)的EA光谱中的跃迁波长。 EAM(300)通过用从公共调制信号(314)产生的信号(312)驱动两个部分来补偿啁啾(其由本征吸收效应引起的)。 第一EAM部分(302)处的驱动信号(312)优选地与第二EAM部分(304)处的驱动信号(312)反相。

    VARIABLE CHIRP MODULATOR HAVING THREE ARM INTERFEROMETER
    8.
    发明申请
    VARIABLE CHIRP MODULATOR HAVING THREE ARM INTERFEROMETER 审中-公开
    具有三维干涉仪的可变式CHIRP调制器

    公开(公告)号:WO01073501A3

    公开(公告)日:2002-06-27

    申请号:PCT/US2001/008994

    申请日:2001-03-21

    CPC classification number: G02F1/2255 G02F2203/25

    Abstract: An electrically tunable optical modulator includes a substrate having an electrooptical effect, an optical waveguide having first, second, and third cascading portions in the substrate, and transmitting an optical field, a first coplanar waveguide electrode having a first part over the first cascading portion and second and third parts extending beyond the first cascading portion, a second coplanar waveguide electrode having a fourth part over the second cascading portion and fifth and sixth parts extending beyond the second cascading portion, a third coplanar waveguide electrode having a seventh part over the third cascading portion and eighth and ninth parts extending beyond the third cascading portion, a fourth coplanar waveguide electrode formed to have a first distance from the first coplanar waveguide electrode, a fifth coplanar waveguide electrode formed between the first and second coplanar waveguide electrodes to have second and third distances, respectively, a sixth coplanar waveguide electrode formed between the second and third coplanar waveguide electrodes to have fourth and fifth distances, respectively, a seventh coplanar waveguide electrode formed to have a sixth distance from the third coplanar waveguide electrode, and a voltage source supplying voltages to the first, second, and third coplanar waveguide electrodes, wherein the fourth to seventh coplanar waveguide electrodes are grounded and the first to sixth distances are substantially the same, so that electrooptic overlap integrals of each cascading portion of the optical waveguide are the same.

    Abstract translation: 一种电可调谐光调制器,包括具有电光效应的衬底,在该衬底中具有第一,第二和第三级联部分的光波导,以及透射光场,在第一级联部分上具有第一部分的第一共面波导电极和 第二和第三部分延伸超过第一级联部分,第二共面波导电极,其具有在第二级联部分上方的第四部分,以及延伸超过第二级联部分的第五和第六部分;第三共面波导电极,其具有第三级联的第七部分 部分和第八和第九部分延伸超过第三级联部分,第四共面波导电极,形成为具有距离第一共面波导电极的第一距离;第五共面波导电极,形成在第一和第二共面波导电极之间,以具有第二和第三 距离分别为第六共面 形成在第二和第三共面波导电极之间的波导电极分别具有第四和第五距离,第七共面波导电极形成为与第三共面波导电极具有第六距离,电压源向第一,第二, 和第三共面波导电极,其中第四至第七共面波导电极接地,并且第一至第六距离基本相同,使得光波导的每个级联部分的电光重叠积分相同。

    INTEGRATED OPTICAL MODULATORS
    9.
    发明申请
    INTEGRATED OPTICAL MODULATORS 审中-公开
    集成光学调制器

    公开(公告)号:WO9636901A3

    公开(公告)日:1997-01-16

    申请号:PCT/GB9601184

    申请日:1996-05-17

    CPC classification number: G02F1/035 G02F1/225 G02F1/2255 G02F2203/25

    Abstract: An integrated optical modulator of the Mach-Zehnder type has a waveguide which, for part of its length, is divided into two waveguide sections (11, 12) arranged logically in parallel. Incoming light is divided to pass along the two sections (11, 12) and is then recombined before leaving the modulator. Each waveguide section has a pair of electrodes (13, 14) and (14, 15) associated therewith to generate an electric field through which the respective waveguide section passes, though there may be a single electrode (14) between the two waveguide sections (11, 12) to serve as one electrode of each pair, with the other electrode of each pair commoned. The physical arrangement of one waveguide section (11) and its associated electrodes (13, 14) is different from that of the other waveguide section (12) and its associated electrodes (14, 15), such that the electric fields to which light propagated along the two waveguide sections (11, 12) are respectively subjected are different when a single driving voltage is applied to the electrodes (13, 14, 15) associated with the waveguide sections. In an alternative arrangement there is provided an amplitude modulator (30) followed by a phase modulator (31).

    光変調器および波長チャープ切替方法
    10.
    发明申请
    光変調器および波長チャープ切替方法 审中-公开
    光学调制器和切换波长的方法

    公开(公告)号:WO2009004683A1

    公开(公告)日:2009-01-08

    申请号:PCT/JP2007/063122

    申请日:2007-06-29

    Inventor: 白石 崇

    CPC classification number: G02F1/2255 G02F1/3558 G02F2203/25

    Abstract:  光変調器(100)は、基板(110)と、光導波路(120)と、信号電極(130)と、切替手段と、を備えている。基板(110)は、Zカットされた電気光学結晶基板に光導波路(120)を形成した基板である。信号電極(130)は、光導波路(120)に沿って基板(110)上に設けられることにより光導波路(120)との相互作用部を有する。切替手段は、基板(110)において光導波路(120)の信号電極(130)との相互作用部が形成される部分のうち、所望の波長チャープに応じた割合の領域(100C)の分極方向を切り替える。

    Abstract translation: 光学调制器(100)包括衬底(110),光导(120),信号电极(130)和开关装置。 基板(110)是具有设置在Z切电光晶体基板上的导光体(120)的基板。 信号电极(130)沿着光导(120)设置在基板(110)上,以便具有与光导(120)的相互作用的区域。 开关装置适于在光源(120)与信号电极(130)的相互作用区域设置在基板上的部分之间切换对应于期望波长啁啾的区域(100C)的偏振方向 (110)。

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