专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070274779A1 LIFT-ASSISTED MANHOLE COVER 有权
标题翻译：提升辅助舱盖
公开(公告)号：US20070274779A1
公开(公告)日：2007-11-29
申请号：US11420083
申请日：2006-05-24
申请人： Jeremy Johnson , Lee Veldboom , Scott Beal , Herbert Barnum , William Austin , James Malpass , Todd Loviska , Brian Rachwitz , Rex Garringer , John Snyder
发明人： Jeremy Johnson , Lee Veldboom , Scott Beal , Herbert Barnum , William Austin , James Malpass , Todd Loviska , Brian Rachwitz , Rex Garringer , John Snyder
IPC分类号： E02D29/14
CPC分类号： E02D29/1418 , Y10T137/7021
摘要： A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
摘要翻译：具有平齐表面和外部枢转轴的升降机辅助井盖组件。该盖包括延伸超出盖的一般周边的安装片。安装翼片可以连接到与框架螺纹接合的轴。弹簧可以安装在框架和安装突片之间，例如在套筒中，以提供提升盖子的机械辅助。套管可以设置在人孔开口的外部，在那里它不阻挡进入人孔开口。

2. 发明授权

US06633599B2 Erbium-doped fiber amplifier pump array 失效
标题翻译：铒掺杂光纤放大器泵阵列
公开(公告)号：US06633599B2
公开(公告)日：2003-10-14
申请号：US09920535
申请日：2001-08-01
申请人： James T. Murray , William Austin
发明人： James T. Murray , William Austin
IPC分类号： H01S3094
CPC分类号： H01S3/0627 , H01S3/0612 , H01S3/0621 , H01S3/0635 , H01S3/094053 , H01S3/094084 , H01S3/09415 , H01S3/2383 , H01S5/005 , H01S5/02252 , H01S5/4031
摘要： A multimode source, such as a high-power laser diode bar, to pump an Nd3+ doped region defined in a cavity of a monolithic crystal structure. The axial length L1 of the doped region is chosen to optimize energy absorption from the multimode source while minimizing resonant re-absorption loss to unpumped Nd3+ ions. The next proximal cavity length L2 is an undoped region whose length is chosen to optimize the lowest order or fundamental spatial mode (“mode 9”) of the cavity. Advantageously, multi-parameter numerical optimization techniques may be employed in which the parameter set (e.g., doped length, L1, doping concentration, pump beam spot size, micro laser cavity length, and output coupler reflectivity) is varied to determine the overall optimal length L1opt.
摘要翻译：多模光源，例如高功率激光二极管条，用于泵浦在单片晶体结构的空腔中限定的Nd <3 + 掺杂区域。选择掺杂区域的轴向长度L 1 以优化来自多模源的能量吸收，同时将谐振再吸收损失最小化为未掺杂的Nd 3+ SP> 离子。下一个近端腔长度L 2 是一个未掺杂的区域，其长度被选择为优化最低阶或基本空间模式（“模式 9 “）。有利地，可以采用多参数数值优化技术，其中参数集（例如，掺杂长度，掺杂浓度，泵浦光斑尺寸，微激光腔长度，和输出耦合器反射率）被改变以确定整体最佳长度L 1 opt 。

3. 发明授权

US06516116B1 High speed optical receiver 失效
标题翻译：高速光接收机
公开(公告)号：US06516116B1
公开(公告)日：2003-02-04
申请号：US09702252
申请日：2000-10-30
申请人： James T. Murray , William Austin
发明人： James T. Murray , William Austin
IPC分类号： G02B626
CPC分类号： G02B6/4204
摘要： A high speed optical receiver comprises a photonic detector having an active aperture area dimensioned to minimize capacitance effects commensurate with achieving the desired signaling speed, and a compound parabolic reflector having a surface contour described by rotating a parabolic arc about a rotational axis, the axis of said parabolic arc making an angle with the rotational axis proportional to the conical angle of the incident light to be gathered, the reflector having a plurality of focii defining the perimeter of an exit pupil not exceeding the area of said photonic detector aperture. The compound reflector contour may advantageously be formed at the end of a length of optical fiber that is positioned at the detector aperture, incident light being admitted to the other end of the fiber through a focusing element which may be a lens, mirror, or holographic phase mask.
摘要翻译：高速光学接收机包括光子检测器，该光子检测器具有一个有效开口面积，该有效开口面积的尺寸被设计成最小化与实现期望的信号速度相当的电容效应;以及复合抛物面反射器，具有通过围绕旋转轴旋转抛物线弧而描述的表面轮廓，所述抛物线弧与旋转轴线成角度，该角度与待收集的入射光的锥角成比例，所述反射器具有限定出射光瞳周长的多个焦点，其不超过所述光子检测器孔径的面积。复合反射器轮廓可以有利地形成在位于检测器孔处的光纤长度的端部，入射光通过可以是透镜，反射镜或全息的聚焦元件进入光纤的另一端相位掩模

4. 发明授权

US06829442B2 High speed optical receiver 失效
标题翻译：高速光接收机
公开(公告)号：US06829442B2
公开(公告)日：2004-12-07
申请号：US09740425
申请日：2000-12-19
申请人： James T. Murray , William Austin
发明人： James T. Murray , William Austin
IPC分类号： H04B1006
CPC分类号： H04B10/112
摘要： A high speed optical receiver comprises, in combination, a non-imaging light gathering device for directing light from its entrance pupil to its exit pupil according to the edge ray principle and a photonic detector coupled to the exit pupil and having an anti-reflective micro-structured active surface area dimensioned to minimize capacitance effects commensurate with achieving a desired signaling speed.
摘要翻译：高速光学接收机组合地包括用于根据边缘射线原理将光从其入射光瞳引导到其出射光瞳的非成像光收集装置，以及耦合到出射光瞳的光子检测器，并具有防反射微型结构化的活性表面积的尺寸被设计成最小化与实现期望的信号速度相称的电容效应。

5. 发明授权

US06587496B1 Single-mode pump power source 失效
标题翻译：单模泵浦电源
公开(公告)号：US06587496B1
公开(公告)日：2003-07-01
申请号：US09734112
申请日：2000-12-11
申请人： James T. Murray , William Austin
发明人： James T. Murray , William Austin
IPC分类号： H01S3091
CPC分类号： H01S3/09415 , H01S3/094003 , H01S3/094084 , H01S3/1608 , H01S3/1611 , H01S3/1618
摘要： The mode and wavelength of a conventional, multi-mode, wide-stripe laser diode is converted in an Nd3+ ion-doped laser host crystal to a stable, single-mode output that falls within the spectral region required for pumping EDFA amplifying structures. The host crystal absorbs radiation from the diode that corresponds with the 4I9/2→4F5/2 absorption band of its Nd3+ ions, and re-radiates into the 4F3/2→4I9/2, 4F3/2→4I11/2, and 4F3/2→4I13/2 transitions which release photon energy that can be utilized by amplifying structures doped with Er3+ and/or Yb3+. The spatial mode of the multimode laser diode is converted to single-mode by enclosing the Nd3+-doped host laser crystal within a laser cavity that has a fundamental mode size large enough to encircle the spatial extent of the beam emanating from the laser diode.
摘要翻译：常规的多模式宽条激光二极管的模式和波长在Nd3 +离子掺杂的激光主机晶体中转换成稳定的单模输出，其落入泵浦EDFA放大结构所需的光谱区域内。主晶体吸收与其Nd3 +离子的4I9 / 2-> 4F5 / 2吸收带相对应的二极管的辐射，并再次辐射到4F3 / 2-> 4I9 / 2,4F3 / 2-> 4I11 / 2 和4F3 / 2-> 4I13 / 2跃迁，释放可以通过放大掺杂有Er3 +和/或Yb3 +的结构来利用的光子能量。多模激光二极管的空间模式通过将Nd3 +掺杂的主激光晶体包围在激光腔内而被转换为单模，其具有足够大的基模大小以包围从激光二极管发出的光束的空间范围。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式