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    OPTICAL COMMUNICATION MODULES
    41.
    发明申请
    OPTICAL COMMUNICATION MODULES 审中-公开
    光通信模块

    公开(公告)号：WO2006032628A1

    公开(公告)日：2006-03-30

    申请号：PCT/EP2005/054600

    申请日：2005-09-15

    Applicant: BOOKHAM TECHNOLOGY PLC ,  BARNARD, Joseph, Alan ,  PAN, QI

    Inventor： BARNARD, Joseph, Alan ,  PAN, QI

    IPC: H04B10/24

    CPC classification number: H04B10/40

    Abstract: A 10 Gbit/s XFP transceiver module comprises a receive optical sub-assembly (ROSA) for receiving a modulated optical signal transmitted along an optical fibre, and a transmit optical sub-assembly (TOSA) for modulating an optical output signal from a laser with the data signal to produce a modulated optical signal to be transmitted along an optical fibre to a remote receiver. The transceiver module also incorporates a receiver CDR circuit for receiving the output signal from the ROSA, and a transmitter CDR circuit for transmitting a conditioned data input signal to the TOSA. Each of the CDR circuits incorporates a limiting input amplifier 10 (LIA), a retiming circuit 11, and a phase detector 12 for supplying an output signal to a voltage controlled oscillator 15 (VCO) by way of an amplifier 13 and a loop filter 14' comprising two possible control paths 20, 21. The control path 20 incorporates a resistor R1, a switching transistor Q1A and a capacitor C2 whereas the control path 21 incorporates a resistor R2, a switching transistor Q1B and a capacitor C3. Furthermore separate control lines 23 and 24 are coupled to the switching transistors Q1A and Q1B to effect switching so that either the control path 20 only is activated to provide a first control status, or the control path 21 only is activated to provide a second control status, or both the control paths 20 and 21 are activated to provide a third control status. Any one of the three possible control statuses may be selected to provide a required loop bandwidth so that jitter can be optimised over a range of possible data transmission rates.

    Abstract translation: 10Gbit / s的XFP收发器模块包括用于接收沿着光纤传输的调制光信号的接收光子组件（ROSA）和用于调制来自激光器的光输出信号的发射光子组件（TOSA） 数据信号以产生要沿光纤传输到远程接收器的调制光信号。 收发器模块还包括用于接收来自ROSA的输出信号的接收器CDR电路和用于将经调节的数据输入信号发送到TOSA的发射器CDR电路。 每个CDR电路包括限幅输入放大器10（LIA），重定时电路11和相位检测器12，用于通过放大器13和环路滤波器14将输出信号提供给压控振荡器15（VCO） “包括两个可能的控制路径20,21。控制路径20包括电阻器R1，开关晶体管Q1A和电容器C2，而控制路径21包含电阻器R2，开关晶体管Q1B和电容器C3。 此外，单独的控制线23和24耦合到开关晶体管Q1A和Q1B以实现切换，使得控制路径20仅被激活以提供第一控制状态，或者仅激活控制路径21以提供第二控制状态 ，或者控制路径20和21都被激活以提供第三控制状态。 可以选择三种可能的控制状态中的任何一种来提供所需的环路带宽，使得可以在可能的数据传输速率的范围内优化抖动。

    WORM TYPE GEAR MOVER ASSEMBLY
    42.
    发明申请
    WORM TYPE GEAR MOVER ASSEMBLY 审中-公开
    WORM型齿轮动力总成

    公开(公告)号：WO2006004678A2

    公开(公告)日：2006-01-12

    申请号：PCT/US2005/022774

    申请日：2005-06-25

    Applicant: BOOKHAM TECHNOLOGY PLC ,  ARNONE, David, F.

    Inventor： ARNONE, David, F.

    IPC: F16H25/20

    CPC classification number: H02K7/06 ,  F16H25/20 ,  F16H25/24 ,  F16H2025/204 ,  F16H2025/2084 ,  F16H2025/209 ,  Y10T74/20341

    Abstract: A mover assembly (16) that moves or positions an object (12) includes a mover output (32), a gear (238), and an assembly output (28) that is coupled to the object (12). The mover output (32) is rotated. The gear (238) engages the mover output (32) so that rotation of the mover output (32) results in rotation of the gear (238). The assembly output (28) is coupled to the gear (238) so that rotation of the gear (238) results in movement of the assembly output (28) along an axis (28A). The mover assembly (16) can include a rotation inhibitor (30) that inhibits rotation of the assembly output (28) and allows for movement of the assembly output (28) along the axis (28A). The mover output (32) can include a worm (236) that engages the gear (238) so that rotation of the worm (236) about a worm axis (236A) results in rotation of the gear (238) about a gear axis (238A) that is different than the worm axis (236A).

    Abstract translation: 移动或定位物体（12）的移动器组件（16）包括移动器输出（32），齿轮（238）和联接到物体（12）的组件输出（28）。 移动器输出（32）旋转。 齿轮（238）接合动子输出（32），使得动子输出（32）的旋转导致齿轮（238）的转动。 组件输出（28）联接到齿轮（238），使得齿轮（238）的旋转导致组件输出（28）沿轴线（28A）的移动。 动子组件（16）可以包括禁止组件输出（28）的旋转并允许组件输出（28）沿轴线（28A）运动的旋转抑制器（30）。 移动器输出（32）可以包括与齿轮（238）接合的蜗杆（236），使得蜗杆（236）围绕蜗杆轴线（236A）的旋转导致齿轮（238）围绕齿轮轴线（ 238A），其与蜗杆轴（236A）不同。

    MULTISTAGE OPTICAL AMPLIFIER AND METHOD TO COMPENSATE FOR AMPLIFIED SPONTANEOUS EMISSION
    43.
    发明申请
    MULTISTAGE OPTICAL AMPLIFIER AND METHOD TO COMPENSATE FOR AMPLIFIED SPONTANEOUS EMISSION 审中-公开
    多功能放大器和补偿放大自发放电的方法

    公开(公告)号：WO2005122445A1

    公开(公告)日：2005-12-22

    申请号：PCT/EP2005/052438

    申请日：2005-05-27

    Applicant: BOOKHAM TECHNOLOGY PLC ,  GRIGGS, Roger, David ,  PALMER, Clive, John ,  PARKER, Andrew, John ,  SEMMENS, Timothy, Andrew

    Inventor： GRIGGS, Roger, David ,  PALMER, Clive, John ,  PARKER, Andrew, John ,  SEMMENS, Timothy, Andrew

    IPC: H04B10/17

    CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/10023 ,  H01S3/1301 ,  H01S2301/02 ,  H04B10/2942 ,  H04B2210/003

    Abstract: A multistage optical amplifier is controlled to compensate for the effect of amplified spontaneous emission (ASE) by a method comprising the following steps. Optical input and output signals to a first gain stage are detected, and the drive current to the first gain stage is controlled in dependence on the optical input signal to the first gain stage. Optical input and output signals to a last gain stage are detected, and the drive current to the last gain stage is controlled to maintain the output power of the last gain stage substantially constant. The effect of ASE in the first gain stage is compensated for by applying a correction factor based on the ASE of the first gain stage and the output power of the first gain stage. The drive current supplied to the first gain stage is controlled to zero in on an error signal of the general form: (Total Power at B - Stage 1 ASE) - (A + Stage 1 Gain) where Total Power at B is the power of the output signal from the first gain stage, and A is the input signal of the first gain stage. Furthermore the drive current supplied to the last gain stage is controlled to zero in on an error signal of the general form: (Total Power at E - Stage 2 ASE) - (D + Stage 2 Gain) where Total Power at E is the power of the output signal from the last gain stage, and D is the input signal of the last gain stage. In this method the correction factor is calibrated in the gain control mode and is subsequently applied in the power control mode, and this therefore simplifies the calibration procedure.

    Abstract translation: 控制多级光放大器以通过包括以下步骤的方法来补偿放大的自发发射（ASE）的影响。 检测到第一增益级的光输入和输出信号，并且根据到第一增益级的光输入信号来控制到第一增益级的驱动电流。 检测到最后一个增益级的光输入和输出信号，并控制到最后一个增益级的驱动电流，以保持最后增益级的输出功率基本恒定。 ASE在第一增益级中的作用通过应用基于第一增益级的ASE和第一增益级的输出功率的校正因子来补偿。 提供给第一增益级的驱动电流通过以下一般形式的误差信号被控制为零：（B处的总功率ASE） - （A +阶段1增益），其中B处的总功率是 来自第一增益级的输出信号，A是第一增益级的输入信号。 此外，提供给最后一个增益级的驱动电流通过一般形式的误差信号被控制为零：（E阶段2 ASE的总功率） - （D +阶段2增益），其中E处的功率为功率 的最后一个增益级的输出信号，D是最后一个增益级的输入信号。 在该方法中，校正因子在增益控制模式下被校准，随后在功率控制模式中被应用，因此简化了校准过程。

    METHOD FOR MANUFACTURING GRATINGS IN SEMICONDUCTOR MATERIALS
    44.
    发明申请
    METHOD FOR MANUFACTURING GRATINGS IN SEMICONDUCTOR MATERIALS 审中-公开
    在半导体材料中制造光刻的方法

    公开(公告)号：WO2005043701A1

    公开(公告)日：2005-05-12

    申请号：PCT/IB2004/003538

    申请日：2004-10-28

    Applicant: BOOKHAM TECHNOLOGY PLC ,  KNIGHT, Gordon, D. ,  CLEROUX, Michael ,  FINLAY, Richard

    Inventor： KNIGHT, Gordon, D. ,  CLEROUX, Michael ,  FINLAY, Richard

    IPC: H01S5/12

    CPC classification number: H01S5/12 ,  H01L21/30612 ,  H01S5/1228 ,  H01S5/1231 ,  H01S5/2081 ,  H01S5/3235 ,  H01S2301/173 ,  H01S2304/04

    Abstract: The present invention is a combination of in-situ etching using a grating mask that is formed in semiconductor material only and the subsequent overgrowth of additional semiconductor material to enclose the grating structure prior to exposure to the atmosphere and the contaminants therein. The present invention is based on a two-stage process. First the grating pattern is defined in a semiconductor material, which is the grating mask. This grating mask is created at a position above the material that is to ultimately contain the grating pattern. Upon the completion of the fabrication of the grating mask, the semiconductor structure is moved to a reactor, where in the second stage, the grating pattern defined by the grating mask is transferred into the underlying semiconductor layers by in-situ etching. The grating is subsequently overgrown with additional semiconductor material while in the same reactor, thereby not exposing the etched grating pattern to the atmosphere thereby reducing the contaminants in the grating structure of the semiconductor laser.

    Abstract translation: 本发明是使用仅在半导体材料中形成的光栅掩模的原位蚀刻和随后的附加半导体材料的过度生长以在暴露于大气和其中的污染物之前封装光栅结构的组合。 本发明基于两阶段方法。 首先，光栅图案被定义在半导体材料中，其是光栅掩模。 该光栅掩模在最终包含光栅图案的材料上方的位置处产生。 在完成光栅掩模的制造之后，将半导体结构移动到电抗器，其中在第二阶段，由光栅掩模限定的光栅图案通过原位蚀刻转移到下面的半导体层中。 光栅随后在相同的反应器中长满了附加的半导体材料，从而不会将蚀刻的光栅图案暴露于大气中，从而减少了半导体激光器的光栅结构中的污染物。

    OPTICAL AMPLIFIERS
    46.
    发明申请
    OPTICAL AMPLIFIERS 审中-公开
    光放大器

    公开(公告)号：WO2004077702A1

    公开(公告)日：2004-09-10

    申请号：PCT/GB2004/000772

    申请日：2004-02-25

    Applicant: BOOKHAM TECHNOLOGY PLC ,  KOCH, Frank ,  JOHNSON, Paul ,  REID, Toby

    Inventor： KOCH, Frank ,  JOHNSON, Paul ,  REID, Toby

    IPC: H04B10/17

    CPC classification number: H04B10/2931 ,  H01S3/1301

    Abstract: An EDF amplifier comprises two EDF loops (1) and (2) separated by optical isolators (3) and pumped with light by pump laser diodes (5) and (6) under the control of an output power control system (7). To achieve the required output power the current supplied to the pump supplying light to the input loop (1) is set to the maximum drive current I max for the pump laser, and the pump currents of all pumps not supplying light to the input loop (1), that is the pumps supplying light to the further loop or loops (2), are adjusted to achieve the required output power. To avoid a very high MPI, the inversion of all loops is never so low that the gain in the first loop (1) has to compensate for loss in the following loop or loops. This is done by providing a minimum pump power to the second loop (2) and any following loops. This ensures that the loops are always inverted enough, and that they do not exhibit too much loss. The required minimum pump current is obtained by modelling and experimental verification.

    Abstract translation: EDF放大器包括由光隔离器（3）分离的两个EDF环路（1）和（2），并且在输出功率控制系统（7）的控制下由泵激光二极管（5）和（6）泵浦。 为了实现所需的输出功率，提供给向输入回路（1）提供光的泵的电流被设置为泵浦激光器的最大驱动电流Imax，并且所有泵不向输入回路（1）提供光的泵浦电流 ），即向另一个环路（2）供应光的泵被调节以实现所需的输出功率。 为了避免非常高的MPI，所有回路的反转不会太低，以至于第一个回路（1）中的增益必须补偿以下回路或回路中的损耗。 这通过向第二回路（2）提供最小泵功率和任何以下回路来实现。 这确保了循环总是足够倒置，并且它们没有表现出太多的损失。 所需的最小泵浦电流通过建模和实验验证获得。

    COUPLING OF OPTICAL COMPONENTS IN AN OPTICAL SUBASSEMBLY
    47.
    发明申请
    COUPLING OF OPTICAL COMPONENTS IN AN OPTICAL SUBASSEMBLY 审中-公开
    光学元件在光学分波组件中的耦合

    公开(公告)号：WO2004053532A2

    公开(公告)日：2004-06-24

    申请号：PCT/US2003/037792

    申请日：2003-11-26

    Applicant: BOOKHAM TECHNOLOGY PLC

    Inventor： AYLIFFE, Michael, H. ,  CHEN, Diana

    IPC: G02B

    CPC classification number: G02B6/4225 ,  G02B6/32 ,  G02B6/4206 ,  G02B6/4208 ,  G02B6/421 ,  G02B6/4227

    Abstract: Coupled-power adjusting apparatus is disclosed in conjunction with optoelectronic modules. The apparatus includes a receptacle assembly with an elongated optical fiber receiving opening having a longitudinal axis and an optoelectronic device. Variable optical power coupling apparatus is mounted in the optical fiber receiving opening and rotateable about the longitudinal axis without moving along the longitudinal axis. Relative rotation of the variable optical power coupling apparatus varies the amount of optical power coupled between the optoelectronic device and an optical fiber positioned in the optical fiber receiving opening. The variable optical power coupling apparatus includes either a polarized isolator or a beveled optical fiber stub.

    Abstract translation: 结合光电模块公开了耦合功率调节装置。 该装置包括具有细长光纤接收开口的插座组件，该接收开口具有纵向轴线和光电子器件。 可变光学功率耦合设备安装在光纤接收开口中并且可绕纵向轴线旋转而不沿着纵向轴线移动。 可变光功率耦合装置的相对旋转改变光电器件与位于光纤接收开口中的光纤之间耦合的光功率的量。 可变光功率耦合装置包括偏振隔离器或斜面光纤短截线。

    OPTICAL COMMUNICATIONS APPARATUS
    48.
    发明申请
    OPTICAL COMMUNICATIONS APPARATUS 审中-公开
    光通信设备

    公开(公告)号：WO2004042967A2

    公开(公告)日：2004-05-21

    申请号：PCT/GB2003/004747

    申请日：2003-11-03

    Applicant: BOOKHAM TECHNOLOGY PLC ,  GIBSON, Matthew

    Inventor： GIBSON, Matthew

    IPC: H04B10/155

    CPC classification number: H04B10/61 ,  G01J4/00

    Abstract: An Optical communications apparatus, comprising: (a) an optical integrated device comprising an input, one or more integrated optical component(s) and an output, arranged such that light received by the input is propagated by the optical component(s) and exits the device as an output light beam; (b) a light beam diverter arranged to divert a sample portion only of the power of the output light beam; (c) a light detector arranged to detect the sample portion of the output light beam; and (d) a polariser located between the light beam diverter and the light detector and/or between the output of the optical integrated device and the light beam diverter, the polariser being arranged such that if light of a predetermined polarisation is received by the optical integrated device, the polariser propagates light of that polarisation only, thereby substantially to prevent light other than of the predetermined polarisation being detected by the light detector.

    Abstract translation: 一种光通信设备，包括：（a）光学集成设备，包括输入，一个或多个集成光学部件和输出，其布置成使得由输入接收的光被光学部件传播并离开 该装置作为输出光束; （b）光束分流器，其布置成只将输出光束的光束的样品部分转移; （c）布置成检测输出光束的样本部分的光检测器; 和（d）位于光束分流器和光检测器之间和/或在光学集成器件的输出端与光束分流器之间的偏振器，偏振器被布置成使得如果预定极化的光被光学器件接收 偏振器仅传播该偏振光，从而基本上防止由光检测器检测到的除了预定偏振之外的光。

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