公开(公告)号：US5694504A

公开(公告)日：1997-12-02

申请号：US612555

申请日：1996-03-08

Applicant: Jun Yu ,  George Horace Brook Thompson ,  Mark Acton Gibbon ,  David Owen Yevick ,  Claude Rolland

Inventor： Jun Yu ,  George Horace Brook Thompson ,  Mark Acton Gibbon ,  David Owen Yevick ,  Claude Rolland

IPC: G02F1/015 ,  G02F1/017 ,  G02F1/025 ,  G02F1/225 ,  G02B6/26

CPC classification number: B82Y20/00 ,  G02F1/2257 ,  G02F1/01708 ,  G02F2201/126 ,  G02F2203/20 ,  G02F2203/25 ,  G02F2203/255

Abstract: A MQW semiconductor Mach Zehnder phase modulator is formed by two Y-junctions (12, 32), each having a single waveguide (14) optically coupled with two branch waveguides (18, 20). The branch waveguides of the two Y-juntions are optically coupled in Mach-Zehnder configuration that, under zero bias conditions, has one interferometric arm longer than the other to provide a .pi. phase shift. The additional length is preferably accommodated in the branches of the Y-junctions. The phase shift, in combination with voltage dependent absorption properties and non-linear phase variations of the MQW guided regions in the Mach-Zehnder modulator results in a negative chirp and high extinction ratio for an equal, push-pull device configuration.

Abstract translation: MQW半导体马赫曾德尔相位调制器由两个Y形结（12,32）形成，每个Y结都具有与两个分支波导（18,20）光学耦合的单个波导（14）。 两个Y型臂的分支波导以马赫 - 曾德尔（Mach-Zehnder）结构光学耦合，在零偏置条件下，具有比另一个更长的干涉臂，以提供pi相移。 附加长度优选地容纳在Y形接头的分支中。 相位偏移与马赫 - 策德尔调制器中的MQW引导区域的电压相关吸收特性和非线性相位变化相结合，导致相等推挽装置配置的负啁啾和高消光比。

公开(公告)号：US5524076A

公开(公告)日：1996-06-04

申请号：US450841

申请日：1995-05-25

Applicant: Claude Rolland ,  John C. Cartledge

Inventor： Claude Rolland ,  John C. Cartledge

IPC: G02F1/017 ,  G02F1/225 ,  G02B6/10

CPC classification number: B82Y20/00 ,  G02F1/225 ,  G02F1/01708 ,  G02F1/2257 ,  G02F2201/126 ,  G02F2203/25 ,  G02F2203/255

Abstract: A Mach-Zehnder optical modulator in which the chirp parameter can be varied by adjusting the optical power splitting ratio between the two arms of the interferometer. The modulating voltage is supplied to a single arm or alternatively to both arms in a push-pull configuration. For an appropriate power splitting ratio negative chirp is achieved with approximately equal push-pull modulating drive voltage. This results in optimum distance and bit rate characteristics with low drive power.

Abstract translation: 通过调整干涉仪的两个臂之间的光功率分配比，可以改变啁啾参数的马赫 - 曾德尔光调制器。 调制电压以推挽配置提供给单个臂或替代双臂。 对于适当的功率分配比，通过大致相等的推挽调制驱动电压实现负啁啾。 这导致了具有低驱动功率的最佳距离和比特率特性。

公开(公告)号：US06600849B2

公开(公告)日：2003-07-29

申请号：US09988507

申请日：2001-11-20

Applicant: Thomas Ducellier ,  Claude Rolland ,  Richard Habel ,  Rajiv Iyer ,  Barrie Keyworth

Inventor： Thomas Ducellier ,  Claude Rolland ,  Richard Habel ,  Rajiv Iyer ,  Barrie Keyworth

IPC: G02B626

CPC classification number: G02B6/3586 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/3588 ,  G02B6/359 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0037 ,  H04Q2011/0043

Abstract: A control system is designed to control an optical cross-connect having a switch core defined by first and second independently movable beam deflectors capable of selectively defining an optical path between a pair of ports of the optical cross-connect. An optical element having optical power is arranged in a propagation path of light beams between the first and second beam deflectors. The control system includes a pilot light source, an optical sensor associated with each beam deflector, and a feedback path. The a pilot light source inserts a pilot light into the switch core colinearly with live traffic. The optical sensor detects a predetermined geometric property of the pilot light emerging from the switch core. This predetermined geometric property is unambiguously associated with an angular position of the associated beam deflector. The feedback path actively controls a position of the associated beam deflector based on the detected geometric property.

公开(公告)号：US5363457A

公开(公告)日：1994-11-08

申请号：US91708

申请日：1993-07-15

Applicant: Christopher E. Falt ,  Bruce A. Richardson ,  Claude Rolland

Inventor： Christopher E. Falt ,  Bruce A. Richardson ,  Claude Rolland

IPC: G02F1/015 ,  G02F1/025 ,  G02F1/21 ,  G02B26/06

CPC classification number: G02F1/025 ,  G02F2001/0151 ,  G02F2001/212 ,  G02F2201/12

Abstract: A semiconductor-based optical phase-modulating device has first and second pairs of phase-fixing electrodes bracketing a pair of phase-modulating electrodes. The phase-fixing electrodes fix electric fields across end regions of the phase-modulating device to reduce distributed resistance and capacitance of the phase-modulating device, thereby improving the frequency response of the phase-modulating device. The optical phase-modulating device is particularly applicable to use in integrated optic Mach-Zehnder interferometers used for optical signal modulation.

Abstract translation: 一种基于半导体的光学相位调制装置具有包围一对相位调制电极的第一和第二对相位固定电极。 相位固定电极固定相位调制装置的端部区域的电场，以减小相位调制装置的分布电阻和电容，从而提高相位调制装置的频率响应。 光学相位调制装置特别适用于用于光信号调制的集成光学马赫 - 曾德干涉仪。

公开(公告)号：US20100046950A1

公开(公告)日：2010-02-25

申请号：US12480803

申请日：2009-06-09

Applicant: Bin CAO ,  Claude ROLLAND

Inventor： Bin CAO ,  Claude ROLLAND

IPC: H04J14/02

CPC classification number: H04J14/0282 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0265 ,  H04J14/06

Abstract: A seed light source for use in Wavelength Division Multiplexed Passive Optical Network (WDM-PON) includes a multi-channel quantum dot laser for generating a multi-channel seed light comprising a plurality of respective channel seed lights. Each channel seed light corresponds to a respective channel of the WDM-PON.

Abstract translation: 用于波分复用无源光网络（WDM-PON）的种子光源包括多通道量子点激光器，用于产生包括多个相应通道种子光的多通道种子光。 每个通道种子光对应于WDM-PON的相应通道。

公开(公告)号：US5799119A

公开(公告)日：1998-08-25

申请号：US675757

申请日：1996-07-03

Applicant: Claude Rolland ,  Jun Yu

Inventor： Claude Rolland ,  Jun Yu

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/125 ,  G02F1/025 ,  G02F1/225 ,  G02B6/26

CPC classification number: G02F1/2257 ,  G02B6/1228 ,  G02B6/125

Abstract: A Mach Zehnder (MZ) modulator with improved coupling of input and output fibers is provided. The MZ modulator combines the advantages of weakly guided input sections with strongly guided sections to optimize the coupling efficiency and selectivity of the device. Improved coupling between weakly and strongly guided sections of waveguide is provided by an intermediate tapered waveguide section which provides gradually changing mode confinement, which reduces the mode mismatch loss and therefore suppresses the reflection at the junction between the weakly and strongly guided sections of the waveguide.

Abstract translation: 提供了一种具有改进的输入和输出光纤耦合的马赫曾德（MZ）调制器。 MZ调制器将弱引导输入部分的优点与强引导部分相结合，以优化器件的耦合效率和选择性。 通过提供逐渐变化的模式限制的中间锥形波导部分提供波导的弱和强引导部分之间的改进的耦合，这减少了模式失配损耗，从而抑制了波导的弱引导部分和强导体部分之间的接合处的反射。

公开(公告)号：US3953916A

公开(公告)日：1976-05-04

申请号：US578855

申请日：1975-05-19

Applicant: Claude Rolland ,  Jacques Delalle

Inventor： Claude Rolland ,  Jacques Delalle

IPC: H01R43/00 ,  H01R4/24 ,  H01R43/01 ,  H01R43/04

CPC classification number: H01R4/2462 ,  H01R43/01 ,  Y10T29/515

Abstract: Wire insertion and trimming apparatus comprising two wire locating combs opposed on opposite sides of a connector-supporting bed, a wire insertion and trimming ram reciprocable relative to the bed, and a third comb movable from a position remote from the bed to a position adjacent the bed to permit loading the connector onto the bed and wire insertion. Preferably, means are provided to latch the third comb remote from the bed which means are releasable by loading a connector and the two combs are movable after wire insertion in cooperation with the latching means to eject the connector.

Abstract translation: 线插入和修剪装置包括两个在连接器支撑床的相对侧相对的线定位梳，相对于床可往复运动的线插入和修整柱塞，以及可从远离床的位置移动到邻近位置的位置的第三梳 床，以允许将连接器加载到床和线插入。 优选地，提供了用于将远离床的第三梳子闩锁的装置，该装置通过装载连接器而可释放，并且两个梳子在与锁定装置协作以插入连接器之后可在导线插入之后移动。