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1. 发明申请

WO1992011550A1 OPTICAL DEVICE 审中-公开
标题翻译：光学装置
公开(公告)号：WO1992011550A1
公开(公告)日：1992-07-09
申请号：PCT/GB1991002129
申请日：1991-12-02
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , JENKINS, Richard, Michael , HEATON, John, Michael
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G02B06/26
CPC分类号： G02B6/12007 , G02B6/2813 , G02B6/29352 , G02F1/225 , H01S3/005 , H01S3/0315 , H01S5/005 , H01S5/4068
摘要： An optical device (10) for use in beamsplitting, recombination and related applications incorporates a rectangular multimode waveguide (20) connecting a first coupling waveguide (18) to two second coupling waveguides (22, 24). The first coupling waveguide (18) operates in its fundamental mode and provides an input which excites a series of symmetric modes of the multimode waveguide (20). Modal dispersion along the multimode waveguide (20) provides for the input excitation (70a) to be transformed into separate output excitations (75a, 75b) centred on respective second coupling waveguides (22, 24). The radiation intensity distribution (75) goes to zero at multimode waveguide end wall regions (54) between the second coupling waveguides (22, 24). This minimises reflection and increases beamsplitting efficiency. The device (10) may be operated in reverse as a beam combiner. Further embodiments include a phase-locked laser array (240) in which the second coupling waveguides (258) provide gain and a second multimode waveguide (260) provides phase correction.
摘要翻译：用于分束，复合和相关应用的光学装置（10）包括将第一耦合波导（18）连接到两个第二耦合波导（22,24）的矩形多模波导（20）。第一耦合波导（18）工作在其基本模式并且提供激励多模波导（20）的一系列对称模式的输入。沿着多模波导（20）的模态色散提供将输入激励（70a）转换为以相应的第二耦合波导（22,24）为中心的分离的输出激励（75a，75b）。辐射强度分布（75）在第二耦合波导（22,24）之间的多模波导端壁区域（54）处变为零。这样可以最大程度地减少反射并增加分束效率。装置（10）可以作为光束组合器反向操作。另外的实施例包括锁相激光器阵列（240），其中第二耦合波导（258）提供增益，第二多模波导（260）提供相位校正。

2. 发明申请

WO1989004988A1 ELECTRO-OPTIC WAVEGUIDE DEVICE 审中-公开
标题翻译：电光波导装置
公开(公告)号：WO1989004988A1
公开(公告)日：1989-06-01
申请号：PCT/GB1988000928
申请日：1988-10-31
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , HEATON, John, Michael , WIGHT, David, Robert , LEWIS, Meirion, Francis , WEST, Christopher, Lawrence
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G02F01/015
CPC分类号： G02F1/025 , G02F1/295 , G02F2001/0154
摘要： An electro-optic waveguide device (10) comprises an assembly of waveguides (30) connected to a common light input region (41) and forming a common far field diffraction pattern (44). The device (10) comprises an n GaAs substrate (14) bearing a waveguide lower cladding layer (16) of n Ga0.9Al0.1As, which is in turn surmounted by a waveguide core layer (18) of n GaAs. The layer (18) has grooves (20) defining the waveguides (30), each of which has a respective Schottky contact (32). Each contact (32) is biased negative with respect to the substrate (14), which reverse biases the respective Schottky diode waveguide structure. The waveguide core layer (18) has electro-optic properties, and its refractive index varies with electric field. The phase of light emerging from each waveguide is therefore independently variable by means of its applied bias voltage. The waveguides (30) are arranged to provide output confined very largely to lowest order spatial modes, so that they produce a single far field diffraction pattern (44). Varying the set of bias voltages applied to the waveguides (30) produces output phase variation which changes the position of the diffraction pattern principal maximum (46) to produce beam steering.
摘要翻译：电光波导装置（10）包括连接到公共光输入区域（41）并形成公共远场衍射图案（44）的波导组件（30）。器件（10）包括带有n + Ga 0. Al 0.1 As的波导下包层（16）的n + GaAs衬底（14），所述波导下包层（16）反过来被波导芯层（18）覆盖 n - GaAs。层（18）具有限定波导（30）的凹槽（20），每个波导具有相应的肖特基接触（32）。每个触点（32）相对于衬底（14）偏置为负，这反向偏置相应的肖特基二极管波导结构。波导芯层（18）具有电光性质，其折射率随电场而变化。因此，从每个波导出射的光的相位可以通过其施加的偏置电压独立地变化。波导（30）被布置成提供非常大地限制在最低阶空间模式的输出，使得它们产生单个远场衍射图案（44）。改变施加到波导（30）的偏置电压的集合产生输出相位变化，其改变衍射图案主要最大值（46）的位置以产生波束转向。

3. 发明申请

WO2004011995A1 OPTICAL WAVEGUIDE DEVICE 审中-公开
标题翻译：光波器件
公开(公告)号：WO2004011995A1
公开(公告)日：2004-02-05
申请号：PCT/GB2003/003149
申请日：2003-07-24
申请人： QINETIQ LIMITED , HEATON, John, Michael
发明人： HEATON, John, Michael
IPC分类号： G02F1/017
CPC分类号： B82Y20/00 , G02B6/126 , G02B2006/12097 , G02B2006/12116 , G02B2006/12128 , G02F1/0136 , G02F1/01708 , G02F1/025 , G02F2203/07
摘要： An optical waveguide device (10) comprises a core (14, 34) and a cladding layer (18, 38) adjacent to said core, wherein at least one of said core and said cladding layer comprises a plurality of layers (14a, 14b, 24, 26; 38a, 38b, 44, 46). Each layer (14a, 14b, 24, 26; 38a, 38b, 44, 46) has a substantially different refractive index from layers immediately adjacent thereto, thereby to determine signal losses of optical signals applied to said device having a first polarisation relative to those of signals having a second polarisation. The arrangement may be configured such that signal losses of optical signals having a first polarisation are substantially less than those of signals having a second polarisation, so that transmission of only the first polarisation is supported.
摘要翻译：光波导器件（10）包括与所述芯相邻的芯（14,34）和覆层（18,38），其中所述芯和所述覆层中的至少一个包括多个层（14a，14b， 24,26; 38a，38b，44,46）。每个层（14a，14b，24,26; 38a，38b，44,46）具有与其相邻的层的折射率基本不同的折射率，从而确定施加到具有第一极化的所述器件的光信号相对于那些的信号损失的具有第二极化的信号。该配置可以被配置为使得具有第一偏振的光信号的信号损耗基本上小于具有第二偏振的信号的信号损耗，使得仅支持第一偏振的透射。

4. 发明申请

WO1992011562A1 OPTICAL MIXING DEVICE 审中-公开
标题翻译：光学混合装置
公开(公告)号：WO1992011562A1
公开(公告)日：1992-07-09
申请号：PCT/GB1991002133
申请日：1991-12-02
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , JENKINS, Richard, Michael , HEATON, John, Michael , DEVEREUX, Robert, William, John
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G02F02/00
CPC分类号： G02B6/2813 , G02F2/002 , H01P1/16
摘要： An optical mixing device (10) incorporates a rectangular multimode waveguide (14), with an input region (22) and an ouput region (24), two square section input waveguides (26, 28), and a detector (34). The input waveguides (26, 28) are arranged to provide first and second input radiation beams respectively to the input region (22), each beam being in the form of a square waveguide fundamental mode beam. Modal dispersion along the multimode waveguide (14) produces a single maximum incident on the detector (34) when the input beams are in phase with one another, and two maxima of like magnitude located on opposite sides of the detector (34) when the input beams are in antiphase. Intermediate these two situations three maxima are produced, the amplitudes depending on phase difference. The first and second input beams may be of like frequency producing a time-independent device output. The input beams may alternatively have different frequencies. For instance the first input beam may be a local oscillator signal produced by a coherent source of stable frequency, and the second input beam may be a Doppler shifted version of an output signal from that source. The device output then provides an intermediate frequency signal. The intensity incident on the detector (34) thus varies at the difference frequency of the two inputs. Similar devices may be constructed with additional inputs and with different forms of output.
摘要翻译：光学混合装置（10）包括矩形多模波导（14），其具有输入区域（22）和输出区域（24），两个方形区域输入波导（26,28）和检测器（34）。输入波导（26,28）被布置成分别向输入区域（22）提供第一和第二输入辐射束，每个波束是方波导基模波束的形式。当输入光束彼此同相时，沿着多模波导（14）的模态色散产生单独的最大入射到检测器（34）上，并且当输入的两个最大值位于检测器（34）的相对侧时，产生两个最大值梁是反相的。中间这两种情况产生三种最大值，幅度取决于相位差。第一和第二输入光束可以具有类似的频率，产生与时间无关的装置输出。输入光束可以具有不同的频率。例如，第一输入波束可以是由稳定频率的相干源产生的本地振荡器信号，并且第二输入波束可以是来自该源的输出信号的多普勒偏移版本。然后，器件输出提供中频信号。因此，入射在检测器（34）上的强度因两个输入的差频而变化。可以使用附加输入和不同形式的输出构造类似的装置。

5. 发明申请

WO02054204A3 APPARATUS FOR GENERATING ELECTRICAL SIGNALS WITH ULTRA-WIDE BAND ARBITRARY WAVEFORMS 审中-公开
标题翻译：用于生成超声波波段的电子信号的装置
公开(公告)号：WO02054204A3
公开(公告)日：2002-09-19
申请号：PCT/GB0200019
申请日：2002-01-04
申请人： ESL DEFENCE LTD , SECR DEFENCE , PRING PHILIP CHARLES JARRETT , HEATON JOHN MICHAEL , WIGHT DAVID ROBERT
发明人： PRING PHILIP CHARLES JARRETT , HEATON JOHN MICHAEL , WIGHT DAVID ROBERT
IPC分类号： G06F1/03 , G06F3/00
CPC分类号： G06F1/03
摘要： Apparatus (22) for generating electrical signals with ultra-wide band arbitrary waveforms, which apparatus (22) comprises an optical impulse generator (24) for generating pulsed optical signals, splitter means (26) for splitting the optical signals into a plurality of optical signals in parallel signal paths, and combiner and optical detector means (30) for combining and detecting the signals in the parallel signal paths to generate the electrical signals with ultra-wide band arbitrary waveforms.
摘要翻译：用于产生具有超宽带任意波形的电信号的装置（22），该装置（22）包括用于产生脉冲光信号的光脉冲发生器（24），用于将光信号分离成多个光学并联信号路径中的信号，以及用于组合和检测并行信号路径中的信号以产生具有超宽带任意波形的电信号的组合器和光检测器装置（30）。

6. 发明申请

WO1992011551A1 SIGNAL ROUTING DEVICE 审中-公开
标题翻译：信号路由设备
公开(公告)号：WO1992011551A1
公开(公告)日：1992-07-09
申请号：PCT/GB1991002130
申请日：1991-12-02
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER ... , JENKINS, Richard, Michael , HEATON, John, Michael
发明人： THE SECRETARY OF STATE FOR DEFENCE IN HER ...
IPC分类号： G02B06/26
CPC分类号： G02B6/2813 , G02F1/313 , G02F2001/212 , G02F2001/217
摘要： A signal routing device (10) incorporates a multimode beamsplitter waveguide (20) connected by a set of parallel relay waveguides (22) to a multimode recombiner waveguide (24). Each relay waveguide (22) contains a respective electro-optic phase shifter (36). Sets of input and output waveguides (18, 28) are connected to the beamsplitter and recombiner waveguides (20, 24) respectively. The input and output waveguides (18, 28) are periodically spaced at off-centre positions across the respective multimode waveguide transverse cross-section associated therewith. Radiation in any one of the input waveguides (18) is distributed between the relay waveguides (22) by virtue of modal dispersion in the beamsplitter waveguide (20). The phase shifters (36) apply a set of phase shifts to the distributed radiation. Modal dispersion in the recombiner waveguide (24) results in the phase shifted radiation providing a non-zero input to one or more of the output waveguides (28). Different sets of phase shifts provide for radiation in any one of the input waveguides (18) being transferred selectably to any one or more of the output waveguides (28), as required for selectable signal routing.
摘要翻译：信号路由设备（10）包括通过一组并行中继波导（22）连接到多模重组波导（24）的多模分束器波导（20）。每个中继波导（22）包含相应的电光移相器（36）。输入和输出波导的组（18,28）分别连接到分束器和重组波导（20,24）。输入和输出波导（18,28）在与其相关联的相应多模波导横截面上的偏心位置周期性地间隔开。任何一个输入波导（18）中的辐射通过分束波导（20）中的模态色散分布在中继波导（22）之间。移相器（36）将一组相移应用于分布式辐射。在重组波导（24）中的模态色散导致相移的辐射为一个或多个输出波导（28）提供非零输入。根据可选信号路由的要求，不同组的相移提供了任何一个输入波导（18）中的辐射可选地传送到任何一个或多个输出波导（28）。

7. 发明申请

WO2008032048A1 ELECTRO-OPTIC WAVEGUIDE POLARISATION MODULATOR 审中-公开
标题翻译：电光波导极化调制器
公开(公告)号：WO2008032048A1
公开(公告)日：2008-03-20
申请号：PCT/GB2007/003431
申请日：2007-09-12
申请人： QINETIQ LIMITED , FINLAYSON, Ewan, David , GORMAN, Philip, Michael , HEATON, John, Michael , KANE, Michael, John , LOWANS, Brian, Sinclair
发明人： FINLAYSON, Ewan, David , GORMAN, Philip, Michael , HEATON, John, Michael , KANE, Michael, John , LOWANS, Brian, Sinclair
IPC分类号： G02F1/025
CPC分类号： G02F1/0136 , G02F1/025 , G02F2001/0142 , G02F2202/101
摘要： An electro-optic waveguide polarisation modulator (20) comprising a waveguide core (4) having first and second faces defining a waveguide core plane, a plurality of primary electrodes (22, 24) arranged at a first side of the waveguide core plane and out of said plane, and at least one secondary electrode (26) arranged at a second side of the waveguide core plane and out of said plane, wherein the electrodes (22, 24, 26) are adapted in use to provide an electric field having field components (13, 15) in two substantially perpendicular directions within the waveguide core (4) so as modulate the refractive index thereof such that electromagnetic radiation propagating through the core (4) is converted from a first polarisation state to a second polarisation state.
摘要翻译：一种电光波导偏振调制器（20），包括具有限定波导芯平面的第一和第二面的波导芯（4），布置在波导芯平面的第一侧的多个主电极（22,24），以及至少一个辅助电极（26），其布置在所述波导芯平面的第二侧并且离开所述平面，其中所述电极（22,24,26）在使用中适于提供具有场的电场组件（13,15）在波导芯（4）内的两个基本上垂直的方向上，以便调制其折射率，使得通过芯（4）传播的电磁辐射从第一偏振状态转换为第二偏振状态。

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