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公开(公告)号：US5406194A
公开(公告)日：1995-04-11
申请号：US948059
申请日：1992-09-21
CPC分类号： G01R1/071
摘要： A new electro-optic sampling probe with femtosecond resolution suitable for ultra-fast electro-optic sampling. The new probe is several times thinner and has a dielectric constant four times less than the best reported conventional bulk LiTaO.sub.3 probes. In addition, the ultimate bandwidth is 50 percent greater than an equivalent LiTaO.sub.3 probe. The probe is a thin film of Al.sub.x Ga.sub.1-x As used in both total internally reflecting and free-standing geometries. Here x is chosen for sufficient transmission of the crystal to the wavelength of the laser source being used for electro-optic sampling. The thickness of the film is a small fraction of the thickness of prior art probes and is chosen, for speed and sensitivity of electro-optic sampling, to be thin compared to the spatial extent of the laser pulse. The thin film probe eliminates many of the problems associated with the use of bulk crystals as electro-optic sensors.
摘要翻译： 具有飞秒分辨率的新型电光采样探头，适用于超高速电光采样。 新型探头比较薄的介电常数比传统的大容量LiTaO3探头小4倍。 此外，最终带宽比等效的LiTaO3探头大50％。 探头是AlxGa1-xAs薄膜，用于全内反射和独立几何形状。 这里选择x用于将晶体充分发送到用于电光采样的激光源的波长。 薄膜的厚度是现有技术探头的厚度的一小部分，并且与激光脉冲的空间范围相比，选择与电光采样的速度和灵敏度相比较薄。 薄膜探头消除了与使用散装晶体作为电光传感器相关的许多问题。
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公开(公告)号：US07106928B2
公开(公告)日：2006-09-12
申请号：US11143565
申请日：2005-06-03
申请人： Douglas R. Dykaar
发明人： Douglas R. Dykaar
IPC分类号： G02B6/26
CPC分类号： G02B6/4214 , G02B6/02085 , H01S3/0675 , H01S3/06754 , H01S3/06791 , H01S3/094015 , H01S3/094019 , H01S5/146
摘要： The present invention relates to coupling high power optical sources into small diameter optical fibers. In a first embodiment, an optical source is provided to the side of a fiber. The fiber is a single mode fiber, which has a cladding and a core, with a Bragg grating written into the core at a low angle. Light emitted from the optical source is index-match coupled into the cladding by using an index-matched element, and subsequently coupled into the fiber core along its length. Alternatively, the light is launched into an end of a larger diameter fiber with a mode reducing means, e.g. long period grating, therein for directing the light into the small diameter fiber.
摘要翻译： 本发明涉及将大功率光源耦合到小直径光纤中。 在第一实施例中，光纤被提供到光纤的一侧。 光纤是单模光纤，其具有包层和芯，布拉格光栅以低角度写入芯中。 从光源发射的光通过使用折射率匹配元件折射率匹配耦合到包层中，并随后沿其长度耦合到光纤芯中。 或者，光以具有模式减小装置的方式发射到较大直径光纤的端部，例如， 其中用于将光引导到小直径光纤中。
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公开(公告)号：US06323479B1
公开(公告)日：2001-11-27
申请号：US09393313
申请日：1999-09-10
申请人： Jaroslav Hynecek , Eric C. Fox , Douglas R. Dykaar
发明人： Jaroslav Hynecek , Eric C. Fox , Douglas R. Dykaar
CPC分类号： H04N5/35518
摘要： A pixel includes a photon detecting element coupled between a node and a ground, a transistor structure coupled between the node and a first predetermined voltage to provide a logarithmic response region, and a reset transistor coupled between the node and a second predetermined voltage to provide a linear response region where the second predetermined voltage is greater than the first predetermined voltage.
摘要翻译： 像素包括耦合在节点和地之间的光子检测元件，耦合在节点和第一预定电压之间以提供对数响应区域的晶体管结构，以及耦合在节点和第二预定电压之间的复位晶体管，以提供 线性响应区域，其中第二预定电压大于第一预定电压。
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公开(公告)号：US5012319A
公开(公告)日：1991-04-30
申请号：US523093
申请日：1990-05-14
IPC分类号： H01L21/3205 , H01L21/822 , H01L23/52 , H01L23/522 , H01L23/532 , H01L27/04 , H01L39/02 , H01P3/02 , H01P3/08 , H01P11/00
CPC分类号： H01L23/53285 , H01L23/5221 , H01L2924/0002 , Y10S505/703 , Y10S505/873
摘要： Integrated electronic assemblies according to the invention, typically semiconductor IC chips, comprise an air gap transmission line. The line has high propagation speed and low dispersion, and can be readily manufactured. Various embodiments of the inventive transmission line are disclosed. In all cases the semiconductor substrate is etched so as to remove at least a substantial portion of the semiconductor material under and/or adjacent to the conductor line or lines. Insulator material (e.g., SiO.sub.2) serves, inter alia, to support the conductor.
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