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1. 发明申请

WO2008007062A3 A TORSION SENSOR 审中-公开
标题翻译：扭转传感器
公开(公告)号：WO2008007062A3
公开(公告)日：2008-03-13
申请号：PCT/GB2007002547
申请日：2007-07-09
申请人： UNIV ASTON , BENNION IAN , ZHOU KAIMING , CHEN XIANFENG , ZHANG LIN
发明人： BENNION IAN , ZHOU KAIMING , CHEN XIANFENG , ZHANG LIN
IPC分类号： G01L1/00
CPC分类号： G01M11/088 , G01L3/12
摘要： A torsion sensor (1) using an optical waveguide (2) in optical communication with a diffraction grating (3), preferably a tilted grating, and most preferably a tilted Bragg grating, which provides the optical waveguide and grating with a torsion-dependent collective optical transmission spectrum. Changes in the collective optical transmission spectrum of the waveguide and grating, induced by changes in the amount of torsion applied to the waveguide, may be detected (12) by detecting a corresponding change in the intensity of optical radiation transmitted through the grating from a controlled optical source (5). The degree of change in the collective optical transmission spectrum is dependent upon the degree of torsion (twist) applied to the optical waveguide. Measuring the magnitude and/or sense (i.e. increase/decrease) in the intensity of optical radiation transmitted through the grating from an optical source enables torsion to be sensed.
摘要翻译：一种使用与衍射光栅（3）光学通信的光波导（2）的扭转传感器（1），优选为倾斜光栅，并且最优选为倾斜布拉格光栅，其为光波导和光栅提供扭转相关集合光传输频谱。通过检测通过光栅传输的光辐射强度的相应变化，可以检测（12）由施加到波导的扭转量的变化引起的波导和光栅的集体光透射频谱的变化光源（5）。集体光传输频谱的变化程度取决于施加到光波导的扭曲程度（扭曲）。测量从光源通过光栅透射的光辐射的强度的量值和/或感测（即增加/减少）使得能够感测扭转。

2. 发明申请

WO2005040874A3 LASER INSCRIPTION OF OPTICAL STRUCTURES IN CRYSTALS 审中-公开
标题翻译：激光刻蚀晶体中的光学结构
公开(公告)号：WO2005040874A3
公开(公告)日：2005-06-16
申请号：PCT/GB2004004334
申请日：2004-10-11
申请人： UNIV ASTON , KHRUSCHEV IGOR , OKHRIMCHUCK ANDREI , SHESTAKOV ALEXANDER , DUBOV MYKHAYLO , BENNION IAN
发明人： KHRUSCHEV IGOR , OKHRIMCHUCK ANDREI , SHESTAKOV ALEXANDER , DUBOV MYKHAYLO , BENNION IAN
IPC分类号： G02B6/12
CPC分类号： G02B6/13 , C30B29/20 , C30B29/28 , C30B29/34 , C30B33/04 , G02B6/124 , H01S3/0612 , H01S3/0627 , H01S3/063 , H01S3/08045 , H01S3/09415 , H01S3/1611 , H01S3/1643 , H01S3/1691
摘要： A method of altering the refractive index of a region of a crystal comprising focusing a pulsed laser beam at a desired position within the crystal and moving the focused beam along a path such that the focussed beam alters the refractive index of the region of the crystal along the path.
摘要翻译：一种改变晶体区域的折射率的方法，包括将脉冲激光束聚焦在晶体内的期望位置处，并沿着路径移动聚焦光束，使得聚焦光束改变晶体区域的折射率路径。

3. 发明申请

WO2008007115A3 FIBRE GRATING SURFACE PLASMON SENSOR 审中-公开
标题翻译：光纤表面等离子体传感器
公开(公告)号：WO2008007115A3
公开(公告)日：2008-03-20
申请号：PCT/GB2007002643
申请日：2007-07-13
申请人： UNIV ASTON , ALLSOP THOMAS DAVID PAUL , WEBB DAVID JOHN , NEAL RONALD , BENNION IAN
发明人： ALLSOP THOMAS DAVID PAUL , WEBB DAVID JOHN , NEAL RONALD , BENNION IAN
IPC分类号： G01N21/55
CPC分类号： G02B6/1226 , B82Y20/00 , G01N21/553 , G01N21/7743 , G02B6/02 , G02B6/02085 , G02B6/021 , G02B6/02104
摘要： The generation of surface plasmons on a metal layer (18) arranged upon an outer surface of an optical waveguide (11), using light (22) reflected from inside the optical waveguide (15). The reflected light is may be a reflected part of guided light travelling along the optical waveguide and may be a back-reflected (e.g. obliquely back-reflected) part of the guided light. The reflected part of guided light may form a radiative optical mode(s) which is used to excite surface plasmons and which is also coupled to the remaining guided mode(s) of the light (21, 23) from which it derives. This coupling of the radiation mode(s) and the guided mode(s) enables changes in the radiation mode(s) to cause consequential changes in the guided mode(s) of light. Such changes in the radiation mode(s) may occur due to the coupling of the reflected mode(s) to the surface plasmons they excite at the metal layer.
摘要翻译：使用从光波导（15）内部反射的光（22）在布置在光波导（11）的外表面上的金属层（18）上产生表面等离子体激元。反射光可以是沿着光波导传播的引导光的反射部分，并且可以是被引导光的反射（例如斜后反射）部分。引导光的反射部分可以形成用于激发表面等离子体激元的辐射光学模式，并且其还耦合到其从其导出的光（21,23）的剩余引导模式。辐射模式和引导模式的这种耦合使得能够改变辐射模式以引起光的导向模式的相应变化。辐射模式的这种变化可能由于反射模式与在金属层上激发的表面等离子体激元的耦合而发生。

4. 发明申请

WO2006072759A3 ACOUSTICALLY TUNED BRAGG GRATINGS FOR DISPERSION COMPENSATION 审中-公开
标题翻译：用于分散补偿的有声调谐布拉格曲线
公开(公告)号：WO2006072759A3
公开(公告)日：2006-09-14
申请号：PCT/GB2005004838
申请日：2005-12-15
申请人： UNIV ASTON , SHU XUEWEN , SUGDEN CATHERINE ANNE , BENNION IAN
发明人： SHU XUEWEN , SUGDEN CATHERINE ANNE , BENNION IAN
IPC分类号： G02B6/293 , G02B6/02 , G02B6/34 , G02F1/125
CPC分类号： G02B6/29356 , G02B6/02195 , G02B6/2932 , G02B6/29394 , G02B6/29395 , G02F1/125 , G02F2201/307
摘要： A Gires-Tournois etalon (GTE) (10) comprising an optical fibre (12) in which a primary chirped fibre Bragg grating (FBG) (16) is provided, an RF signal generator (20), a piezoelectric transducer (22), and a glass horn (24), for coupling an acoustic wave (26) into the fibre (12). The acoustic wave (26) causes a periodic compression within the fibre (12), which induces a low frequency periodic refractive index modulation within the grating section (14) of the fibre (12). This causes two side frequency components to be generated for each high-frequency component of the FBG (16). Two secondary grating are thus excited, having the same spectral bandwidth as the FBG (16), but a lower reflectivity and different central wavelengths. The free spectral range of the GTE (10) can be adjusted by varying the frequency of the acoustic wave (26). The reflectivity of the excited secondary gratings can be adjusted by adjusting the amplitude of the acoustic wave (26).
摘要翻译：一种包括提供初级啁啾光纤布拉格光栅（FBG）（16）的光纤（12）的Gires-Tournois标准具（GTE）（10），RF信号发生器（20），压电换能器（22）以及用于将声波（26）耦合到所述光纤（12）中的玻璃喇叭（24）。声波（26）引起光纤（12）内的周期性压缩，其在光纤（12）的光栅部分（14）内引起低频周期性折射率调制。这导致为FBG（16）的每个高频分量产生两个侧频分量。因此，两个次级光栅被激发，具有与FBG（16）相同的光谱带宽，但是较低的反射率和不同的中心波长。可以通过改变声波的频率来调节GTE（10）的自由光谱范围（26）。激发的次级光栅的反射率可以通过调节声波的振幅来调节（26）。

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