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1. 发明授权

US5446807A Passband-flattened acousto-optic polarization converter 失效
标题翻译：通带平坦声光偏振转换器
公开(公告)号：US5446807A
公开(公告)日：1995-08-29
申请号：US264673
申请日：1994-06-23
申请人： Jane E. Baran , Antonio d'Alessandro , Janet L. Jackel
发明人： Jane E. Baran , Antonio d'Alessandro , Janet L. Jackel
IPC分类号： G02B6/126 , G02F1/125 , G02B6/12 , G02B6/26
CPC分类号： G02F1/125 , G02B6/126
摘要： A passband-flattened acousto-optic polarization converter (100) in which two acoustic waveguides (14, 20) are formed in a substrate and a separated by a small gap (18) such that the two acoustic waveguides act as a directional coupler in which acoustic power is transferred back and forth. An interdigitated transducer (12) launches a surface acoustic wave in the first acoustic waveguide, and an optical waveguide is formed in the middle of the second waveguide. A partial acoustic absorber (27) is formed over both acoustic waveguides at a crossover length at a distance from the transducer equal to the point at which the acoustic wave has transferred from the first to the second waveguides and back again. The partial absorber absorbs most of the acoustic amplitude with the attenuated acoustic amplitude being coupled back again to the second acoustic waveguide but at an opposite sign. A complete absorber (26) is formed over both acoustic waveguides at a distance from the transducer equal to approximately twice the crossover length such that the attenuated acoustic wave following the partial absorber and transferred to the second acoustic waveguide again transfers back to the first acoustic waveguide. The optical signal is exposed to an acoustic signal that increases to a maximum, decreases and then increases and decreases again with a smaller magnitude and reversed sign. The resultant frequency response has a significantly flattened shape for improved performance of the converter for use as a an optical switch or filter.
摘要翻译：一种通带平坦声光偏振转换器（100），其中两个声波导（14,20）形成在衬底中并由小间隙（18）分开，使得两个声波导作为定向耦合器，其中声功率来回传递。交叉换能器（12）在第一声波导中发射表面声波，并且在第二波导的中间形成光波导。在两个声波导上形成有一部分声波吸收体（27），该距离与换能器相距一定距离处的交叉长度等于声波从第一波导传输到第二波导的位置。部分吸收体吸收大部分声振幅，衰减的声振幅再次耦合回第二声波导，但是以相反的符号。在距离换能器一定距离处的两个声波导上形成完整的吸收体（26）等于交叉长度的大约两倍，使得跟随部分吸收体并传递到第二声波导的衰减声波再次传回到第一声波导。光信号暴露于增加到最大值的声信号，然后以较小的幅度和反向符号再次增加和减小。所得到的频率响应具有显着平坦的形状，用于改进用作光学开关或滤波器的转换器的性能。

2. 发明授权

US07925124B2 Electro-optical tunable filter and manufacturing process 失效
标题翻译：电光可调滤波器及制造工艺
公开(公告)号：US07925124B2
公开(公告)日：2011-04-12
申请号：US12487077
申请日：2009-06-18
申请人： Antonio D'Alessandro , Romeo Beccherelli , Cesare Umeton , Rita Asquini , Domenico Donisi , Luciano De Sio , Roberto Caputo
发明人： Antonio D'Alessandro , Romeo Beccherelli , Cesare Umeton , Rita Asquini , Domenico Donisi , Luciano De Sio , Roberto Caputo
IPC分类号： G02F1/1334 , G02F1/13 , H01L21/00
CPC分类号： G02F1/225 , G02F1/13 , G02F1/1326 , G02F2201/066 , G02F2201/307 , G02F2202/022 , G02F2203/055
摘要： An electro-optical filter made of a support in which an optical guide with a diffused channel waveguide and of a cover, that are created in borosilicate glass, and which includes a gap obtained by the use of suitable spacers, filled with a grating constituted of alternating strips of polymer and liquid crystal called POLICRYPS (Polymer Liquid CRYstal Polymer Slices), and with first electrodes that are coplanar to the support and next to the optical guide with a channel, that electrically control the grating making the filter tunable, and a manufacturing process.
摘要翻译：一种由支撑体制成的电光滤波器，其中具有扩散通道波导和盖的光导，其在硼硅玻璃中产生，并且包括通过使用合适的间隔件获得的间隙，该间隙填充有由称为POLICRYPS（聚合物液体CRYstal聚合物切片）的聚合物和液晶的交替条带以及与支撑体共面的第一电极和具有通道的光导体旁边的第一电极，其电控制使滤光片可调谐的光栅，以及制造处理。

3. 发明申请

US20090317032A1 Electro-Optical Tunable Filter and Manufacturing Process 失效
标题翻译：电光可调滤波器和制造工艺
公开(公告)号：US20090317032A1
公开(公告)日：2009-12-24
申请号：US12487077
申请日：2009-06-18
申请人： Antonio D'Alessandro , Romeo Beccherelli , Cesare Umeton , Rita Asquini , Domenico Donisi , Luciano De Sio , Roberto Caputo
发明人： Antonio D'Alessandro , Romeo Beccherelli , Cesare Umeton , Rita Asquini , Domenico Donisi , Luciano De Sio , Roberto Caputo
IPC分类号： G02F1/1334
CPC分类号： G02F1/225 , G02F1/13 , G02F1/1326 , G02F2201/066 , G02F2201/307 , G02F2202/022 , G02F2203/055
摘要： An electro-optical filter made of a support in which an optical guide with a diffused channel waveguide and of a cover, that are created in borosilicate glass, and which includes a gap obtained by the use of suitable spacers, filled with a grating constituted of alternating strips of polymer and liquid crystal called POLICRYPS (Polymer Liquid CRYstal Polymer Slices), and with first electrodes that are coplanar to the support and next to the optical guide with a channel, that electrically control the grating making the filter tunable, and a manufacturing process.
摘要翻译：一种由支撑体制成的电光滤波器，其中具有扩散通道波导和盖的光导，其在硼硅玻璃中产生，并且包括通过使用合适的间隔件获得的间隙，该间隙填充有由称为POLICRYPS（聚合物液体CRYstal聚合物切片）的聚合物和液晶的交替条带以及与支撑体共面的第一电极和具有通道的光导体旁边的第一电极，其电控制使滤光片可调谐的光栅，以及制造处理。

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