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11. 发明授权

US4491384A Optical switch device 失效
标题翻译：光开关器件
公开(公告)号：US4491384A
公开(公告)日：1985-01-01
申请号：US339309
申请日：1982-01-15
申请人： Tsukasa Yamashita , Masaharu Matano , Kazuhiko Mori , Norihiro Ota
发明人： Tsukasa Yamashita , Masaharu Matano , Kazuhiko Mori , Norihiro Ota
IPC分类号： G02F1/335 , G02B5/14
CPC分类号： G02F1/335
摘要： By an electro-optical switch or an optical switch element utilizing diffraction by a surface acoustic wave, an input light beam is first switched over to one of light beams two or a multiple of two in number and propagating in different directions. By a surface acoustic wave which is discretely variable in frequency, the light beam in each of the different propagation direction is deflected at angles in accordance with the varying frequencies while propagating through an optical waveguide layer. It is possible to obtain by switching a very large total number of output light beams which are equal in number to the number of resolvable deflected light beams obtained in the frequency bandwidth of one surface acoustic wave, multiplied by the number of light beams obtained by switching with the optical switch element.
摘要翻译：通过利用表面声波衍射的电光开关或光开关元件，首先将输入光束切换成两个或两个数量的光束中的一个，并在不同方向上传播。通过频率离散变化的表面声波，在通过光波导层传播的同时，根据变化的频率以不同传播方向的每一个的光束偏转。可以通过切换数量相等于在一个声表面波的频率带宽中获得的可分辨偏转光束的数量乘以通过切换获得的光束的数量的输出光束的总数而获得与光开关元件。

12. 发明授权

US4674827A Slab-type optical device 失效
标题翻译：板式光学装置
公开(公告)号：US4674827A
公开(公告)日：1987-06-23
申请号：US816974
申请日：1986-01-06
申请人： Masayuki Izutsu , Tadasi Sueta , Masaharu Matano
发明人： Masayuki Izutsu , Tadasi Sueta , Masaharu Matano
IPC分类号： G01C19/72 , G01K11/00 , G01L1/24 , G02B6/122 , G02B6/125 , G02B6/28 , G02B6/10
CPC分类号： G02B6/2804 , G01C19/721 , G01K11/00 , G01L1/242 , G02B6/122 , G02B6/125
摘要： A slab-type optical device comprising a pair of single mode waveguides equal in phase constant and intersecting each other each at its one end and a pair of single mode waveguides different in phase constant and intersecting each other each at its one end. The pairs of waveguides are joined to each other at their intersections. The angle of intersection of the two waveguides in each pair is set to such a small value that when light propagates along the waveguide a very small distance, the variation in the spacing between the waveguides is negligible relative to the distance of propagation.
摘要翻译：一种平板型光学器件，包括一对相位恒定并且在其一端彼此相交并且相位不同的一对单模波导在其一端相互相交的单模波导。波导对在它们的交点处彼此连接。每对中的两个波导的交叉角被设定为如此小的值，即当光沿着波导传播非常小的距离时，相对于传播距离，波导之间的间隔的变化是可忽略的。

13. 发明授权

US4850666A Slab-type optical device 失效
标题翻译：板式光学装置
公开(公告)号：US4850666A
公开(公告)日：1989-07-25
申请号：US865
申请日：1987-01-06
申请人： Masayuki Izutsu , Tadasi Sueta , Masaharu Matano
发明人： Masayuki Izutsu , Tadasi Sueta , Masaharu Matano
IPC分类号： G01C19/72 , G01K11/00 , G01L1/24 , G02B6/122 , G02B6/125 , G02B6/28
CPC分类号： G02B6/2804 , G01C19/721 , G01K11/00 , G01L1/242 , G02B6/122 , G02B6/125
摘要： A slab-type optical device comprising a pair of single mode waveguides equal in phase constant and intersecting each other each at its one end and a pair of single mode waveguides different in phase constant and intersecting each other each at its one end. The pairs of waveguides are joined to each other at their intersections. The angle of intersection of the two waveguides in each pair is set to such a small value that when light propagates along the waveguide a very small distance, the variation in the spacing between the waveguides is negligible relative to the distance of propagation.
摘要翻译：一种平板型光学器件，包括一对相位恒定并且在其一端彼此相交并且相位不同的一对单模波导在其一端相互相交的单模波导。波导对在它们的交点处彼此连接。每对中的两个波导的交叉角被设定为如此小的值，即当光沿着波导传播非常小的距离时，相对于传播距离，波导之间的间隔的变化是可忽略的。

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