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. 发明授权

US06188809B1 Method and device for controlling the polarization of a beam of light 失效
标题翻译：用于控制光束的偏振的方法和装置
公开(公告)号：US06188809B1
公开(公告)日：2001-02-13
申请号：US09229162
申请日：1999-01-13
申请人： Jacques Bismuth , Michael Trzecieski , Rajiv Iyer , Paul Colbourne
发明人： Jacques Bismuth , Michael Trzecieski , Rajiv Iyer , Paul Colbourne
IPC分类号： G02B600
CPC分类号： G02F1/0136
摘要： Broad wavelength tuning range are achieved in an effectively reset-free, optical, automatic polarization controller by providing a device and method for varying the polarization of an input beam of light. A block of electro-optic material has two pairs of electrodes for applying a voltage across the block. Light is launched into an input end of the block for receiving the input beam of light. A controller controls a quadrature voltage applied to the first and a second pair of electrodes; the quadrature voltage has the form of a magnitude and an angle. The quadrature voltage can be varied in such a manner as to orient a given electric field within the electro-optic material through a plurality of angles, for example between 0 and 2&pgr; radians; the magnitude of the quadrature voltage can be set to create an arbitrary retardance from 0 to 2&pgr;. Any output polarization state can be realized by appropriately varying the magnitude and angle of the voltage applied to the Vx and Vy electrodes.
摘要翻译：通过提供用于改变输入光束的偏振的装置和方法，在有效无复位的光学自动偏振控制器中实现宽波长调谐范围。一块电光材料具有两对电极，用于在该块上施加电压。灯被发射到用于接收输入光束的块的输入端。控制器控制施加到第一和第二对电极的正交电压; 正交电压具有幅度和角度的形式。正交电压可以以使得电光材料内的给定电场通过多个角度（例如在0和2pi弧度之间）定向的方式变化; 可以设置正交电压的幅度以产生从0到2pi的任意延迟。可以通过适当地改变施加到Vx和Vy电极的电压的大小和角度来实现任何输出偏振状态。

2. 发明授权

US06760501B2 Device for imposing a field tilt for approximating the inherent field curvature of a focusing element in a free space optical device 有权
标题翻译：用于施加场倾斜以用于近似自由空间光学装置中的聚焦元件的固有场曲率的装置
公开(公告)号：US06760501B2
公开(公告)日：2004-07-06
申请号：US10152733
申请日：2002-05-23
申请人： Rajiv Iyer , Jacques Bismuth
发明人： Rajiv Iyer , Jacques Bismuth
IPC分类号： G02B628
CPC分类号： G02B6/2931 , G02B6/29313 , G02B6/29395 , G02B6/3512
摘要： An optical beam path directing system has a field-flattening optically transmissive wedge installed in spatially dispersed beam paths upstream of the planar surface of a micro electro-mechanical switch (MEMS) or liquid crystal array. The parameters of the field-flattening wedge and its location in the diffracted beam paths are defined such that the wedge effectively rotates a ‘best fit’ planar surface approximation of the curvilinear focal plane of a concave reflector into coplanar coincidence with the optical signal-receiving surface of the MEMS. As a result, loss variation is essentially flat and minimized across the optical signal transmission band.
摘要翻译：光束路径引导系统具有安装在微机电开关（MEMS）或液晶阵列的平面表面上游的空间分散的光束路径中的场平坦光透射楔。场平坦楔的参数及其在衍射光束路径中的位置被定义为使得楔有效地将凹面反射器的曲线焦平面的“最佳拟合”平面表面近似转换为与光信号接收的共面重合 MEMS表面。结果，损耗变化基本上是平坦的并且在光信号传输频带内最小化。

3. 发明授权

US06707959B2 Wavelength switch 有权
标题翻译：波长开关
公开(公告)号：US06707959B2
公开(公告)日：2004-03-16
申请号：US10051176
申请日：2002-01-22
申请人： Thomas Ducellier , Filippus Stefanus Roux , Jacques Bismuth
发明人： Thomas Ducellier , Filippus Stefanus Roux , Jacques Bismuth
IPC分类号： G02B634
CPC分类号： G02B6/356 , G02B6/272 , G02B6/2931 , G02B6/29373 , G02B6/3512 , G02B6/3592
摘要： A fiber optic wavelength switch that includes a front-end unit having optical ports for receiving and transmitting optical signals; a wavelength dispersion element (e.g., diffraction grating, prism, etc.) for defining a dispersion plane; a light redirecting element (e.g., spherical reflector) associated with the wavelength dispersion element; and an actuation array (e.g., MEMS) operative with the light redirecting element for tilting an optical signal substantially perpendicular to the dispersion plane defined by the wavelength dispersion element. The wavelength switch can be implemented as a one input/output port and several add/drop ports type device, which can add/drop wavelengths from/to the in/out port. The front-end unit having a fiber array coupled to a micro-lens array with optical signals from the micro-lens being directed by a further lens.
摘要翻译：一种光纤波长开关，包括具有用于接收和发送光信号的光端口的前端单元; 用于限定色散平面的波长色散元件（例如衍射光栅，棱镜等）; 与波长色散元件相关联的光重定向元件（例如，球面反射器）; 以及与光重定向元件一起操作的致动阵列（例如，MEMS），用于倾斜基本垂直于由波长色散元件限定的色散平面的光信号。波长开关可以实现为一个输入/输出端口和几个加/减端口类型的设备，可以从/输入/输出端口添加/删除波长。前端单元具有耦合到微透镜阵列的光纤阵列，其中来自微透镜的光信号由另一透镜引导。

4. 发明授权

US06498872B2 Optical configuration for a dynamic gain equalizer and a configurable add/drop multiplexer 有权
标题翻译：动态增益均衡器和可配置的分插复用器的光学配置
公开(公告)号：US06498872B2
公开(公告)日：2002-12-24
申请号：US09729270
申请日：2000-12-05
申请人： Oleg Bouevitch , Thomas Ducellier , W. John Tomlinson , Paul Colbourne , Jacques Bismuth
发明人： Oleg Bouevitch , Thomas Ducellier , W. John Tomlinson , Paul Colbourne , Jacques Bismuth
IPC分类号： G02B628
CPC分类号： G02B6/29383 , G02B6/2766 , G02B6/2773 , G02B6/2793 , G02B6/2931 , G02B6/29313 , G02B6/29395 , G02B6/29397
摘要： An optical device for rerouting and modifying an optical signal that is capable of operating as a dynamic gain equalizer (DGE) and/or a configurable optical add/drop multiplexer (COADM) is disclosed. The optical design includes a front-end unit for providing a collimated beam of light, an element having optical power for providing collimating/focusing effects, a diffraction element for providing spatial dispersion, and modifying means which in a preferred embodiment includes one of a MEMS array and a liquid crystal array for reflecting and modifying at least a portion of a beam of light. The modifying means functions as an attenuator when the optical device operates as a DGE and as a switching array when the optical device operates as a COADM. Advantageously, this invention provides a 4-f system wherein a preferred embodiment the element having optical power is a concave reflector for providing a single means for receiving light from the front-end unit, reflecting the received light to the dispersive element, receiving light from the dispersive element, and providing dispersed light to the modifying means. Conveniently and advantageously, this same concave reflector is utilized on a return path, obviating the requirement of matching elements. In one embodiment a single focussing/collimating lens is provided substantially at a focal plane of the element having optical power.
摘要翻译：公开了一种用于重新路由和修改能够作为动态增益均衡器（DGE）和/或可配置的光分插复用器（COADM）操作的光信号的光学装置。光学设计包括用于提供准直光束的前端单元，具有用于提供准直/聚焦效果的光焦度的元件，用于提供空间色散的衍射元件以及在优选实施例中包括MEMS 阵列和用于反射和修改光束的至少一部分的液晶阵列。当光学装置作为COADM工作时，修改装置用作衰减器，当光学装置作为DGE工作时，作为开关阵列起作用。有利地，本发明提供一种4-f系统，其中优选实施例具有光功率的元件是凹面反射器，用于提供用于接收来自前端单元的光的单个装置，将接收到的光反射到分散元件，分散元件，并向修改装置提供分散的光。方便和有利地，这种相同的凹面反射器用于返回路径，从而避免了匹配元件的要求。在一个实施例中，单个聚焦/准直透镜基本上设置在具有光焦度的元件的焦平面处。

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