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    • 3. 发明公开
    • System and method for providing temperature control for a thermally activated optical switch using constant total power
    • 的系统和方法的温度控制为具有恒定的总功率的热控光开关
    • EP1130443A2
    • 2001-09-05
    • EP00123273.5
    • 2000-10-26
    • Agilent Technologies Inc. a Delaware Corporation
    • Schiaffino, StefanoSchroeder, DaleTroll, Mark
    • G02B26/02G02F1/31G02F1/01
    • G02B6/3582G02B6/3538G02B6/3546G02B6/3576G02B6/3596G02B26/004G02F1/0147G02F1/3137G02F1/315G02F2203/023
    • An optical switching device (46; 94; 98) and a method of providing temperature control for the device utilize compensating thermal energy to maintain a consistent operating temperature. The optical switching device may be a thermally activated optical switch that routes optical signals using bubbles that are strategically created along optical paths (58, 60, 62, 64, 66, 68, 70 and 72) within the device. The bubbles are created by thermal energy generated by switching heating elements (84). The compensating thermal energy may be generated by at least one compensating heating element (86A, 86B, 86C and 86D; 100) or by at least one switching heating element that is not currently being used for optical switching, i.e., bubble creation. The compensating thermal energy is varied so that total thermal energy generated by the device is constant, which results in a consistent operating temperature. In a first embodiment, the device includes additional heating elements (86A, 86B, 86C and 86D) that are selectively activated to generate the compensating thermal energy. In a second embodiment, the compensating thermal energy is generated by all of the switching heating elements along one or more optical paths that are in a transmission mode. In a third embodiment, the device includes a single additional heating element (100) that is supplied with a variable electrical power to generate the compensating thermal energy.
    • 一种光学开关装置(46; 94; 98)和所述装置提供温度控制的方法利用补偿热能以保持一致的操作温度。 光开关装置可以是热活化的光开关没有路由使用泡沫的光信号并沿该装置内的光路(58,60,62,64,66,68,70和72)被策略性地创建。 气泡由通过切换加热元件(84)产生的热能产生。 可以通过至少一个补偿加热元件(86A,86B,86C和86D; 100)来产生所述补偿热能或通过至少一个开关加热元件没有当前未用于光学开关,即,气泡生成。 补偿热能被改变,从而也由该装置产生的总热能是恒定的,以一致的操作温度,这导致。 在第一实施例,该装置包括没有选择性被激活以产生所述补偿热能附加的加热元件(86A,86B,86C和86D)。 在第二个实施例,通过沿所有的一个或多个光路切换加热元件并处于传输模式所产生的补偿热能。 在第三个实施例,该装置包括单个额外的加热元件(100)没有IS SUPPLIED具有可变的电功率,以产生所述补偿热能。
    • 5. 发明公开
    • Optical cross-switch signal monitoring method and system therefor
    • Verfahren zurSignalüberwachungeiner Optischer Kreuzschalter und Vorrichtungdafür
    • EP1273942A1
    • 2003-01-08
    • EP02004877.3
    • 2002-03-04
    • Agilent Technologies, Inc. (a Delaware corporation)
    • Schroeder, Dale
    • G02B6/35G02B26/02
    • G02B6/3538G02B6/3542G02B6/3546G02B6/3576
    • A method and device are provided for monitoring a light signal in an optical switch having a first waveguide [134] and a second waveguide [148] that intersect a first trench [134-148] such that optical coupling is dependent upon a fluid being at the first trench [134-148], and having a test waveguide [152] that intersects a second trench [134-152] such that optical coupling is dependent upon the fluid being at the second trench [134-152]. By changing the fluid at the first trench [134-148] to switch the optical switch to cause a light signal to be reflected from the first waveguide [134] into the second waveguide [148] and by partially changing the fluid at the second trench [134-152] to switch the optical switch to cause a portion of the light signal to be reflected from the first waveguide [134] into the test waveguide [152]. The portion of the light signal in the test waveguide [152] can be monitored using a light detector [158].
    • 提供了一种方法和装置,用于监测光开关中的光信号,所述光开关具有与第一沟槽Ä134-148Ü相交的第一波导Ä134Ü和第二波导Ä148Ü,使得光耦合取决于第一沟槽处的流体Ä134-148Ü 并且具有与第二沟槽Ä134-152that相交的测试波导Ä152Ü,使得光学耦合取决于处于第二沟槽Ä134-152the处的流体。 通过改变第一沟槽Ä134-148Ü处的流体来切换光学开关,使得光信号从第一波导Ä134Ü反射到第二波导Ä148Ü中,并且通过部分地改变第二沟槽Ä134-152the处的流体来切换 光学开关以使一部分光信号从第一波导Ä134Ü反射到测试波导Ä152Ü中。 可以使用光检测器Ä158Ü来监测测试波导Ä152Ü中光信号的一部分。
    • 8. 发明公开
    • Optical cross-switch gas intrusion detector and detection method
    • Optischer Querverbindungsschalter mit Detektorfüreindringendes Gas und Nachweisverfahren
    • EP1229375A2
    • 2002-08-07
    • EP01125645.0
    • 2001-10-26
    • Agilent Technologies, Inc. (a Delaware corporation)
    • Schroeder, Dale
    • G02B26/02
    • G02B26/004G02B6/3522G02B6/3538G02B6/3546G02B6/3576G02B6/3582
    • A system and method are provided for detection of gas intrusion into a fluid-containing device [50]. The fluid-containing device [50] has a first waveguide [62] and a second waveguide [92] that intersect at a trench [62+92] such that optical coupling between the first and second waveguides [62,92] is dependent upon an absence of a fluid in the trench [62+92]. The fluid containing device [50] includes a fluid removal mechanism for removing fluid to the trench [62+92] to switch the fluid-containing device [50]. An optical connection is made between first ends of the first and second waveguides [62,92] and a light source [102] provides a light at a second end of the first waveguide [62] and a detector [102] detects the light at a second end of the second waveguide [92]. The times required to remove and return the fluid from the trench [62+92] are used as an indicator of gas intrusion into the fluid containing device [50].
    • 提供了一种用于检测气体侵入流体容纳装置的系统和方法。 含流体的装置Ä50Ü具有在沟槽Ä62+ 92 that处相交的第一波导Ä62Ü和第二波导Ä92Ü,使得第一和第二波导é62,92Ü之间的光学耦合取决于沟槽中的流体Ä62+ 92U。 流体容纳装置Ä50Ü包括用于将流体移除到沟槽Ä62+92Ü以切换含流体的装置Ä50Ü的流体移除机构。 在第一和第二波导é62,92Ü的第一端之间形成光学连接,并且光源Ä102Ü在第一波导Ä62Ü的第二端处提供光,并且检测器Ä102Ü检测第二波导的第二端处的光Ä92Ü 。 用于从沟槽Ä62+92Ü移除和返回流体所需的时间用作气体侵入流体容纳装置的指示器。
    • 9. 发明公开
    • Loss equalization in a multistage optical switch
    • 在einem mehrstufigen optischen Schalter的Dämpfungsentzerrung
    • EP1076254A2
    • 2001-02-14
    • EP00115673.6
    • 2000-07-20
    • Agilent Technologies Inc., A Delaware Corporation
    • Schroeder, Dale
    • G02B26/02G02F1/313
    • G02B6/3546G02B6/3538G02B6/356G02B6/3594G02B26/004H04Q11/0005H04Q2011/0049H04Q2011/0052H04Q2011/0058
    • A multistage optical switch includes a stage-to-stage connectivity scheme that provides equalization of losses encountered as optical signals traverse switching crosspoints (30). Each stage (62, 64 and 66) includes more than one switching unit having a first array of input ports (42, 44, 46, 48 and 50) and a second array of output ports (52, 54, 56, 58 and 60) that are selectively coupled by varying the crosspoints between transmissive states and reflective states. The input ports of a particular switching unit and the output ports of the same unit have rankings that are reflective of the number of optical crosspoints that must be traversed by optical signals propagating between input and output ports having the same ranking. High ranking output ports of the switching units of one stage are optically coupled to low ranking input ports of the subsequent stage, thereby defining stage-to-stage optical paths that ensure equalization in the sums of the crosspoints that are traversed when optical signals propagate through the two stages. Preferably, the connectivity of the second stage to a third stage is a mirror image of the connectivity of the first and second stages.
    • 多级光交换机包括阶段到阶段连接方案,其提供当穿过交换交叉点(30)的光信号遇到的损耗的均衡。 每个级(62,64和66)包括多于一个具有第一输入端口阵列(42,44,46,48和50)的开关单元和输出端口(52,54,56,58和60)的第二阵列 ),其通过改变透射状态和反射状态之间的交叉点而选择性地耦合。 特定开关单元的输入端口和相同单元的输出端口具有反映必须通过在具有相同等级的输入和输出端口之间传播的光信号必须穿过的光学交叉点的数量的排序。 一级开关单元的高排量输出端口光耦合到后级的低等级输入端口,从而限定级到级光路,确保当光信号传播通过时穿过的交叉点的和中的均衡 两个阶段 优选地,第二级与第三级的连接性是第一级和第二级的连接性的镜像。