公开(公告)号：WO2007132268A2

公开(公告)日：2007-11-22

申请号：PCT/GB2007/050257

申请日：2007-05-11

Applicant: BOOKHAM TECHNOLOGY PLC ,  MCCLEAN, Ian Peter ,  FOURTE, Stephen David ,  DRAKE, Jonathon Stuart ,  FLINTHAM, Barrie

Inventor： MCCLEAN, Ian Peter ,  FOURTE, Stephen David ,  DRAKE, Jonathon Stuart ,  FLINTHAM, Barrie

IPC: H04B10/296

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/1305 ,  H04B10/296

Abstract: A variable gain optical amplifier comprises an EDFA for amplifying optical signals at different wavelengths and a pump driver (14) for optically pumping the EDFA to provide optical gain. An input detector (2) is provided for monitoring the power Pin of input signals to the EDFA, and an output detector (3) is provided for monitoring the power Pout of output signals from the EDFA. A gain control arrangement is provided for supplying a drive signal to the pump driver 14 to control the optical gain including a feed forward arrangement (20, 21, 22, 23) for supplying a feed forward signal dependent on the monitored input power Pin, and a feed back arrangement (5, 6, 7, 8, 9, 30) for supplying a feed back signal dependent on the monitored output power Pout. In order to ensure rapid gain control the feed back arrangement comprises an adaptive proportional-integral (PI or PID) controller (30) for controlling the optical gain at a required gain set point in accordance with proportional and integral control coefficients Kp and Ki corresponding to a required gain profile, at least one of which is dynamically variable in dependence on the monitored output power Pout, the output signal from the controller (30) and the feed forward signal being added in an adder (31) to produce the drive signal for the pump driver (14).

Abstract translation: 可变增益光放大器包括用于放大不同波长的光信号的EDFA和用于光泵浦EDFA以提供光增益的泵驱动器（14）。 提供输入检测器（2），用于监视到EDFA的输入信号的电源引脚，并且提供输出检测器（3），用于监视来自EDFA的输出信号的功率Pout。 提供增益控制装置，用于向泵驱动器14提供驱动信号以控制光学增益，其包括用于提供取决于所监视的输入功率Pin的前馈信号的前馈布置（20,21,22,23），以及 反馈装置（5,6,7,8,9,30），用于根据所监视的输出功率Pout提供反馈信号。 为了确保快速增益控制，反馈装置包括一个自适应比例积分（PI或PID）控制器（30），用于根据对应于对应的比例积分控制系数Kp和Ki控制在所需增益设定点处的光增益 所需增益分布，其中至少一个根据所监视的输出功率Pout动态变化，来自控制器（30）的输出信号和加法器（31）中的前馈信号相加以产生用于 泵驱动器（14）。

公开(公告)号：WO2007107782A1

公开(公告)日：2007-09-27

申请号：PCT/GB2007/050101

申请日：2007-03-06

Applicant: BOOKHAM TECHNOLOGY PLC ,  PROSYK, Kelvin ,  HAYSOM, Joan

Inventor： PROSYK, Kelvin ,  HAYSOM, Joan

IPC: H01L27/15 ,  H01S5/026 ,  H01S5/50

CPC classification number: H01S5/4031 ,  H01L27/15 ,  H01S5/02276 ,  H01S5/0425 ,  H01S5/4018

Abstract: A monolithically integrated optoelectronic component comprises a substrate (48) , and at least three optoelectronic sub-devices (41, 42, 43) integrated within a semiconductor layer on the substrate (48) . Each of the sub-devices (41, 42, 43) has an upper conductor (44) and a lower conductor (45, 46) separated by a common active region (49) , and two of the sub-devices (41, 43) are electrically coupled to a conducting semiconductor sub- layer (47) within the semiconductor layer by their upper or lower conductors. Electrical isolation zones (54, 55, 56) are provided for electrically isolating a further one of the sub-devices (42) from the semiconductor sub-layer (47) and from the coupled conductors of the sub-devices (41, 43) , and for electrically isolating the other conductors of the sub-devices (41, 43) from one another. The combined use of such electrical isolation zones enables more complex electrical connection schemes to be used than has previously been possible with conventional integrated optoelectronic components. Such electrical connection schemes can be independent of the physical ordering of the sub-devices on the substrate which is of course of significance in terms of the optical path through the sub-devices.

Abstract translation: 单片集成的光电子部件包括衬底（48）和集成在衬底（48）上的半导体层内的至少三个光电子器件（41,42,43）。 每个子装置（41,42,43）具有由公共有源区（49）分开的上导体（44）和下导体（45,46），并且两个子装置（41,43,44） ）通过其上导体或下导体电耦合到半导体层内的导电半导体子层（47）。 电隔离区（54,55,56）被设置用于将另一个子器件（42）与半导体子层（47）和子器件（41,43）的耦合导体电隔离， 并且用于将子装置（41,43）的其它导体彼此电隔离。 结合使用这种电隔离区域使得能够使用比以前可能的常规集成光电子部件更复杂的电连接方案。 这样的电连接方案可以独立于衬底上的子器件的物理顺序，这在通过子器件的光路方面当然是重要的。

公开(公告)号：WO2007066080A8

公开(公告)日：2007-08-30

申请号：PCT/GB2006004495

申请日：2006-12-01

Applicant: BOOKHAM TECHNOLOGY PLC ,  PAN QI ,  BARNARD JOSEPH

Inventor： PAN QI ,  BARNARD JOSEPH

IPC: H01S5/0683 ,  H01S5/024 ,  H01S5/042

CPC classification number: H01S5/06832 ,  H01S5/02415 ,  H01S5/0427

Abstract: A method of operating a laser (104) using a laser driver (102) , including the steps of : providing the laser driver (102) with a first electrical input (106) indicative of a desired value for an output characteristic of the laser; and controlling a second electrical input from the laser driver (102) to the laser (104) on the basis of said first electrical input (106) and an electrical indicator (322) of an actual value of said output characteristic of the laser with reference to a first electrical reference (206) , and further including the step of : controlling the first electrical input (106) on the basis of said electrical indicator (322) of an actual value of said output characteristic of the laser with reference to a second electrical reference (314) of greater reliability than the first electrical reference (206) so as to compensate for any variation of the first electrical reference (206) .

Abstract translation: 一种使用激光驱动器（102）操作激光器（104）的方法，包括以下步骤：为激光驱动器（102）提供表示激光器的输出特性的期望值的第一电输入（106） 以及基于所述第一电输入端（106）和所述激光器的所述输出特性的实际值的电指示器（322）控制从所述激光驱动器（102）到所述激光器（104）的第二电输入， 涉及第一电参考（206），并且还包括以下步骤：基于所述电指示器（322），参照所述激光器的所述输出特性的实际值，参考第二电参考（206）控制所述第一电输入（106） 电气参考（314）比第一电气参考（206）具有更高的可靠性，以补偿第一电气参考（206）的任何变化。

公开(公告)号：WO2007080418A1

公开(公告)日：2007-07-19

申请号：PCT/GB2007/000100

申请日：2007-01-15

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

Inventor： BARNARD, Joseph, Alan ,  PAN, Qi

IPC: H01L23/38

CPC classification number: H01L23/38 ,  F25B2321/0212 ,  H01L23/34 ,  H01L2924/0002 ,  H01S5/02415 ,  H01L2924/00

Abstract: A system including: (i) a semiconductor device (124) ; (ii) a thermoelectric controller (102) for controlling the temperature of the semiconductor device; (iii) an electrical power supply for powering the thermoelectric controller; (iv) a first device (120, 122, 104, 106, 108, 110) capable of determining both a direction and a magnitude of current through the thermoelectric controller; (v) a second device (202) also capable of determining a magnitude of current through the thermoelectric controller; and (vi) a controller (118) for controlling the first and second devices on the basis of an electrical indicator of the temperature of the semiconductor device so as to achieve a desired direction and magnitude of current through the thermoelectric controller at a level of power consumption lower than could be achieved using the first device alone.

Abstract translation: 一种系统，包括：（i）半导体器件（124）; （ii）用于控制半导体器件的温度的热电控制器（102） （iii）用于为热电控制器供电的电源; （iv）能够确定通过热电控制器的电流的方向和大小的第一装置（120,122,104,106,108,110）; （v）还能够确定通过热电控制器的电流的大小的第二装置（202）; 以及（vi）用于基于半导体器件的温度的电指示器来控制第一和第二器件的控制器（118），以便以功率水平达到期望的通过热电控制器的电流的方向和大小 消耗低于单独使用第一器件可实现的消耗。

公开(公告)号：WO2007000615A3

公开(公告)日：2007-06-28

申请号：PCT/GB2006050173

申请日：2006-06-28

Applicant: BOOKHAM TECHNOLOGY PLC ,  HARDER CHRISTOPH ,  JAKUBOWICZ ABRAM ,  MATUSCHEK NICOLAI ,  TROGER JOERG ,  SCHWARZ MICHAEL

Inventor： HARDER CHRISTOPH ,  JAKUBOWICZ ABRAM ,  MATUSCHEK NICOLAI ,  TROGER JOERG ,  SCHWARZ MICHAEL

IPC: H01S5/20 ,  H01S5/02 ,  H01S5/042 ,  H01S5/22

CPC classification number: H01S5/0425 ,  H01L2224/48463 ,  H01S5/02276 ,  H01S5/1039 ,  H01S5/16 ,  H01S5/2036 ,  H01S5/22

Abstract: Semiconductor laser diodes, particularly broad area single emitter (BASE) laser diodes of high light output powers are commonly used in opto- electronics. Light output power and stability of such laser diodes are of crucial interest and any degradation during normal use is a significant disadvantage. The present invention concerns an improved design of such laser diodes, the improvement in particular significantly minimizing or avoiding (front) end section degradation at very high light output powers by controlling the current flow in the laser diode in a defined way. This is achieved by controlling the carrier injection, i.e. the injection current, into the laser diode in a novel way by creating single current injection points along the laser diode's longitudinal extension, e.g. along the waveguide. Further, the supply current/voltage of each single or group of current injection point(s) may be separately regulated, further enhancing controllability of the carrier injection.

Abstract translation: 半导体激光二极管，特别是高光输出功率的大面积单发射极（BASE）激光二极管通常用于光电子器件中。 这种激光二极管的光输出功率和稳定性是非常重要的，正常使用过程中的任何退化都是一个明显的缺点。 本发明涉及这种激光二极管的改进设计，尤其通过以限定的方式控制激光二极管中的电流流动，特别是在非常高的光输出功率下显着最小化或避免（前端）部分退化的改进。 这是通过沿着激光二极管的纵向延伸产生单个电流注入点来以新颖方式控制载流子注入（即注入电流）到激光二极管中来实现的，例如， 沿着波导。 此外，每个单个或一组电流注入点的电源电流/电压可以分开调节，进一步增强了载流子注入的可控性。

公开(公告)号：WO2007066118A1

公开(公告)日：2007-06-14

申请号：PCT/GB2006/004578

申请日：2006-12-08

Applicant: BOOKHAM TECHNOLOGY PLC ,  REID, Douglas, Charles, John ,  WARD, Andrew, John

Inventor： REID, Douglas, Charles, John ,  WARD, Andrew, John

IPC: H01S5/0625 ,  H01S5/12

CPC classification number: H01S5/06256 ,  G02B6/02085 ,  G02B2006/12107 ,  H01S5/1212 ,  H01S5/1215

Abstract: A Bragg reflector grating comprises a plurality of chirped grating sections (65-72), in which at least a first chirped grating section and a second chirped grating section have differing ranges of grating pitches. The combined range of grating pitches provided by the first and second chirped grating sections includes at least one discontinuity, such that the first and second chirped grating sections have one or more grating pitches in common and/or there are one or more ranges of grating pitches within the combined range of grating pitches that are absent.

Abstract translation: 布拉格反射器光栅包括多个啁啾光栅部分（65-72），其中至少第一啁啾光栅部分和第二啁啾光栅部分具有不同范围的光栅间距。 由第一和第二啁啾光栅部分提供的光栅间距的组合范围包括至少一个不连续性，使得第一和第二啁啾光栅部分具有共同的一个或多个光栅间距和/或存在一个或多个光栅间距范围 在不存在的光栅间距的组合范围内。

公开(公告)号：WO2007036750A1

公开(公告)日：2007-04-05

申请号：PCT/GB2006/050303

申请日：2006-09-26

Applicant: BOOKHAM TECHNOLOGY PLC ,  REID, Douglas, Charles, John ,  WARD, Andrew, John

Inventor： REID, Douglas, Charles, John ,  WARD, Andrew, John

IPC: G02B6/02 ,  H01S5/125

CPC classification number: H01S5/06256 ,  G02B6/02085 ,  G02B2006/12107 ,  H01S5/1209 ,  H01S5/1212

Abstract: A tunable laser comprises a gain section and two or more reflectors. At least one of the reflectors is a Bragg grating comprising a reduced strength section comprising a base order periodic pattern of marks and spaces from at which at least some of the marks or spaces are missing. This enables the reflective strength of the grating to be controlled relative to the other reflector. The Bragg grating may be a phase change grating with individual sections being reduced in strength by line removal.

Abstract translation: 可调谐激光器包括增益部分和两个或更多个反射器。 反射器中的至少一个是布拉格光栅，其包括减小的强度部分，其包括标记和空间的基本定期周期性图案，其中缺少至少一些标记或空间。 这使得能够相对于另一个反射器控制光栅的反射强度。 布拉格光栅可以是相变光栅，其中各个部分通过线去除而强度降低。

公开(公告)号：WO2007036749A2

公开(公告)日：2007-04-05

申请号：PCT/GB2006/050302

申请日：2006-09-22

Applicant: BOOKHAM TECHNOLOGY PLC ,  REID, Douglas, Charles, John ,  WARD, Andrew, John

Inventor： REID, Douglas, Charles, John ,  WARD, Andrew, John

IPC: G02B6/02 ,  H01S5/125

CPC classification number: H01S5/06256 ,  H01S5/1209 ,  H01S5/1212 ,  H01S5/125

Abstract: A Bragg grating has a local reflection strength which varies with position along the length of the grating so as to generate a non-uniform wavelength reflection spectrum, enabling compensation for a non-uniform gain profile of the gain section of a tunable laser. In another aspect, a Bragg comb grating is modulated by an envelope function which can also compensate for a non-uniform gain profile. The comb grating may be a phase change grating, with the envelope function shape being controlled by the length between phase changes and/or size of the phase changes.

Abstract translation: 布拉格光栅具有随着沿着光栅长度的位置而变化的局部反射强度，以产生不均匀的波长反射光谱，从而能够补偿可调谐激光器的增益部分的不均匀增益分布。 在另一方面，布拉格梳状光栅由包络函数调制，该包络函数也可补偿不均匀增益分布。 梳状光栅可以是相变光栅，其中包络函数形状由相位变化和/或相位变化的大小之间的长度控制。

公开(公告)号：WO2007036703A1

公开(公告)日：2007-04-05

申请号：PCT/GB2006/003557

申请日：2006-09-26

Applicant: BOOKHAM TECHNOLOGY PLC ,  TOWLSON, Guy, Robert ,  PROSYK, Kelvin

Inventor： TOWLSON, Guy, Robert ,  PROSYK, Kelvin

IPC: G02F1/017 ,  G02F1/025

CPC classification number: B82Y20/00 ,  G02B6/122 ,  G02B6/2813 ,  G02F1/01708 ,  G02F1/025 ,  G02F2001/0155

Abstract: An opto-electronic device comprises a waveguide (3) along which light may propagate and an electrode (7) associated with the waveguide and arranged to apply a variable electric field thereto. The waveguide includes one or more active regions (10) in which variations in the electric field applied by the electrode to the waveguide cause variations in absorption of the light, and one or more passive regions (9) in which variations in the electric field applied by the electrode to the waveguide cause substantially no variations in any absorption of the light. Relative proportions of the waveguide that comprise the active and passive regions vary along at least part of the length of the waveguide.

Abstract translation: 光电器件包括光可以传播的波导（3）和与波导相关联并布置成向其施加可变电场的电极（7）。 波导包括一个或多个有源区域（10），其中由电极施加到波导的电场的变化导致光的吸收变化，以及一个或多个被施加电场变化的被动区域（9） 通过电极到波导导致光的任何吸收基本上没有变化。 包括有源和无源区域的波导的相对比例沿波导的至少一部分长度变化。

公开(公告)号：WO2006113398A2

公开(公告)日：2006-10-26

申请号：PCT/US2006013990

申请日：2006-04-14

Applicant: BOOKHAM TECHNOLOGY PLC ,  PRITCHETT RUSS ,  WANG WEIZHI ,  PIETERSE JAN-WILLEM ,  CORDES ANDREW ,  ABRIAM ROSEMARY

Inventor： PRITCHETT RUSS ,  WANG WEIZHI ,  PIETERSE JAN-WILLEM ,  CORDES ANDREW ,  ABRIAM ROSEMARY

IPC: H01S3/10

CPC classification number: H01S5/141 ,  H01S5/06 ,  H01S5/0617 ,  H01S5/0654 ,  H01S5/143

Abstract: A system is provided for producing wavelength tunable laser light and a signal indicative of the wavelength of the produced laser light; a laser cavity includes an optical gain medium and a wavelength selective element disposed in a path of light emitted by the optical gain medium such that changing a position of the element changes a wavelength emitted by the medium; a position sensor that senses position of the element; position signal circuitry that produces a position signal indicative of position of the element sensed by the position sensor; a storage medium storing at least one position signal corresponding to a respective predetermined position of the element; comparison circuitry for comparing the produced position signal with the at least one stored position signal and for producing a comparison result indicative of whether the element has reached to the predetermined position; marker signal circuitry providing an external wavelength marker signal when the comparison result indicates that the element has reached the respective predetermined position.

Abstract translation: 提供一种用于产生波长可调激光的系统和指示产生的激光的波长的信号; 激光腔包括光学增益介质和设置在由光学增益介质发射的光的路径中的波长选择元件，使得改变元件的位置改变由介质发射的波长; 感测元件位置的位置传感器; 位置信号电路，其产生指示由位置传感器感测的元件的位置的位置信号; 存储介质，存储对应于所述元件的相应预定位置的至少一个位置信号; 比较电路，用于将所产生的位置信号与所述至少一个存储的位置信号进行比较，并产生指示所述元件是否已达到所述预定位置的比较结果; 标记信号电路，当比较结果指示元件已经达到相应的预定位置时，提供外部波长标记信号。