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    Free space optical switch with lenses for re-collimating the light
    1.
    发明公开
    Free space optical switch with lenses for re-collimating the light 有权
    具有Lichtrekollimationslinsen自由空间光交换网络

    公开(公告)号：EP1162856A3

    公开(公告)日：2004-09-15

    申请号：EP01100986.7

    申请日：2001-01-17

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Wang, Shih-Yuan

    IPC分类号： H04Q11/00

    CPC分类号： H04Q11/0005 ,  H04Q2011/0026

    摘要： A cross-connect switch[100] for switching light signals arriving on N input optical fibers[110] to M out optical fibers[140]. The switch includes NxM mirror elements[121, 123] arranged as N rows and M columns of mirror elements[121, 123]. Each mirror element has a reflecting state and a non-reflecting state. In the reflecting state, each mirror element reflects light from a corresponding one of the input optical fibers[110] to a corresponding one of the out optical fibers[140]. Each mirror element is positioned in the non-reflecting state such that the mirror element does not intercept light from any of the input optical fibers[110]. All of the mirror elements[121, 123] corresponding to a given input optical fiber are located on the same row and all mirror elements[121, 123] corresponding to a given output optical fiber are located in the same column. The switch also includes a plurality of re-collimating lenses[131, 132], one such re-collimating lens[131] is located between two of the mirror elements[121, 123] in each of the rows of mirror elements[121, 123]. Each re-collimating lens collimates light from the input optical fiber[110] corresponding to that row. The switch also includes one such re-collimating lens[132] between two of the mirror elements[121, 123] in each of the columns of mirror elements[121, 123].

    Optical element having electrically controllable refractive index
    3.
    发明公开
    Optical element having electrically controllable refractive index 审中-公开
    有电控制的折射率的光学元件

    公开(公告)号：EP1081538A3

    公开(公告)日：2003-08-13

    申请号：EP00114523.4

    申请日：2000-07-06

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Chen, Yong ,  Corzine, Scott W. ,  Wang, Shih-Yuan

    IPC分类号： G02F1/19 ,  G02F1/315 ,  G02F1/21 ,  G11C13/04

    CPC分类号： G11C13/041 ,  G02F1/19 ,  G02F1/21 ,  G02F1/315 ,  G02F2203/02 ,  G02F2203/023

    摘要： An optical element having a variable index of refraction. The optical element utilizes a layer of a transparent dielectric material having an index of refraction determined by the concentration of hydrogen in the dielectric material. A layer of a hydrogen reservoir medium that includes a material that acts as a source or a sink for hydrogen is placed adjacent to the transparent dielectric layer. The reservoir medium accepts hydrogen from the transparent layer in response to a first electric field being applied across the transparent layer and reservoir layer and donates hydrogen to the transparent layer in response to a second electric field being applied across the transparent layer and the reservoir layer. The electric fields are generated by applying appropriate potentials across first and second electrodes that sandwich the dielectric and reservoir layers. The preferred reservoir material is KOH. The transparent dielectric material preferably includes a material chosen from the group consisting of hydrides of an alkali, alkaline-earth, rare-earth metals, and alloys thereof.

    Optical cross-connect utilizing metal/hydride mirrors
    5.
    发明公开
    Optical cross-connect utilizing metal/hydride mirrors 审中-公开
    使用金属/氢化物镜光学交叉连接

    公开(公告)号：EP1085365A3

    公开(公告)日：2003-08-13

    申请号：EP00114524.2

    申请日：2000-07-06

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Chen, Yong ,  Yang, Long ,  Wang, Shih-Yuan

    IPC分类号： G02F1/31 ,  G02F1/15 ,  G02F1/19

    CPC分类号： G02F1/31 ,  G02F1/1523 ,  G02F1/19 ,  G02F2202/34 ,  G02F2203/02

    摘要： An optical cross-connect switch[10] for routing light signals between N input optical fibers[12] and M output optical fibers[14]. The switch utilizes an NxM array of optical switching elements[15,16], each optical switching element[15,16] routing a light signal from one of the input optical fibers[12] to one of the output optical fibers[14]. Each optical switching element[15,16] includes a layer of a switching material, first and second transparent electrodes[32,35] overlying the layer of switching material[34], and a layer of hydrogen reservoir material[33] adjacent to the layer of switching material[34]. The switching material has first and second states. The switching material is transparent to the light signals in the first state, and the switching material reflects the light signals in the second state. The state of the switching material is determined by the concentration of hydrogen in the material. The hydrogen reservoir material supplies hydrogen to the switching material when a first potential difference is applied between the first and second electrodes[32,35] and absorbs hydrogen from the switching material when a second potential difference is applied between the first and second electrodes[32,35]. The switching material preferably includes a material chosen from the group consisting of alkali, alkaline-earth, rare-earth metals, and the alloys and hydrides thereof.

    Free space optical switch with lenses for re-collimating the light
    7.
    发明公开
    Free space optical switch with lenses for re-collimating the light 有权
    Optisches Freiraum-Koppelfeld mit Lichtrekollimationslinsen

    公开(公告)号：EP1162856A2

    公开(公告)日：2001-12-12

    申请号：EP01100986.7

    申请日：2001-01-17

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Wang, Shih-Yuan

    IPC分类号： H04Q11/00

    CPC分类号： H04Q11/0005 ,  H04Q2011/0026

    摘要： A cross-connect switch[100] for switching light signals arriving on N input optical fibers[110] to M out optical fibers[140]. The switch includes NxM mirror elements[121, 123] arranged as N rows and M columns of mirror elements[121, 123]. Each mirror element has a reflecting state and a non-reflecting state. In the reflecting state, each mirror element reflects light from a corresponding one of the input optical fibers[110] to a corresponding one of the out optical fibers[140]. Each mirror element is positioned in the non-reflecting state such that the mirror element does not intercept light from any of the input optical fibers[110]. All of the mirror elements[121, 123] corresponding to a given input optical fiber are located on the same row and all mirror elements[121, 123] corresponding to a given output optical fiber are located in the same column. The switch also includes a plurality of re-collimating lenses[131, 132], one such re-collimating lens[131] is located between two of the mirror elements[121, 123] in each of the rows of mirror elements[121, 123]. Each re-collimating lens collimates light from the input optical fiber[110] corresponding to that row. The switch also includes one such re-collimating lens[132] between two of the mirror elements[121, 123] in each of the columns of mirror elements[121, 123].

    摘要翻译： 一个交叉连接开关，用于将到达N个输入光纤Ä110Ü的光信号切换到M为光纤Ä140。 该开关包括被配置为N列和M列的镜元件Ä121,123Ü的NxM镜元件12312,123。 每个镜子元件具有反射状态和非反射状态。 在反射状态下，每个反射镜元件将来自输入光纤Y110的相应一个的光反射到对应的一个出口的光纤Ä140。 每个镜元件被定位在非反射状态，使得镜子元件不会遮挡来自任何输入光纤Y110的光。 对应于给定输入光纤的所有反射镜元件Ä121,123u位于同一行上，对应于给定输出光纤的所有反射镜元件Ä121,123u位于同一列中。 该开关还包括多个重新准直透镜Ä131,132Ü，一个这样的重新准直透镜Ä131is位于每个反射镜元件Ä121,123the的每一个中的两个反射镜元件Ä121,1123之间。 每个再准直透镜对来自对应于该行的输入光纤1101u的光进行准直。 该开关还包括在每个镜子元件Ä121,123the的每一列中的两个镜元件Ä121,123includes之间的一个这样的重新准直透镜。

    Optically pumped VCSEL
    8.
    发明公开
    Optically pumped VCSEL 有权
    光泵浦VCSEL

    公开(公告)号：EP1037341A3

    公开(公告)日：2001-09-05

    申请号：EP00102463.7

    申请日：2000-02-04

    申请人： Agilent Technologies Inc. a Delaware Corporation

    发明人： Tan, Michael R. T. ,  Babic, Dubravko I. ,  Corzine, Scott W. ,  Ranganath, Tirmula R. ,  Wang, Shih-Yuan ,  Bi, Wayne

    IPC分类号： H01S5/04 ,  H01S5/026 ,  H01S5/183

    CPC分类号： H01S5/426 ,  H01S5/0215 ,  H01S5/0216 ,  H01S5/041 ,  H01S5/18311 ,  H01S5/18369

    摘要： An optically pumped vertical-cavity surface-emitting laser (VCSEL) device (66) and a method of fabricating the device utilize two separate substrates (70 and 74) that perform a filtering operation to selectively transmit only light having a long peak wavelength that is generated by the device. The optically pumped VCSEL device is a self-pumped device that can generate the pump light (76) to drive the device to emit output laser (78) light having a long peak wavelength. Preferably, the output laser light has a peak wavelength between 1250 nm and 1700 nm, which is desirable for applications in the field of optical communications. The optically pumped VCSEL device includes a short-wavelength VCSEL (68) formed on one (70) of the two substrates and a long-wavelength VCSEL (72) formed on the other substrate (74). The short-wavelength VCSEL is a current-driven VCSEL that generates short-wavelength light to drive (i.e., optically pump) the long-wavelength VCSEL. The short-wavelength VCSEL and the long-wavelength VCSEL are bonded together such that the two substrates are separated by the two VCSELs. A transparent optical adhesive material or a metallic bonding material (88) may be utilized to bond the short-wavelength VCSEL onto the long-wavelength VCSEL. Preferably, flip-chip technology is used for the bonding step. The substrates are wavelength-selective with respect to propagating light, so that short-wavelength light generated by the short-wavelength VCSEL and not absorbed by the long-wavelength VCSEL is mostly absorbed by the two separate substrates. However, the long-wavelength light generated by the long-wavelength VCSEL is allowed to be transmitted through the substrates as output laser light.