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38 条记录 (耗时 0.015 秒)

    Acousto-optic modulator comprising an optical waveguide
    4.
    发明公开
    Acousto-optic modulator comprising an optical waveguide 失效
    Akusto-optische Modulationsvorrichtung mit einem optischen Wellenleiter

    公开(公告)号：EP0859264A1

    公开(公告)日：1998-08-19

    申请号：EP98300559.6

    申请日：1998-01-27

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Presby, Herman Melvin

    IPC分类号： G02F1/125

    CPC分类号： G02F1/0134 ,  G02B6/3628 ,  G02B6/3636 ,  G02B6/4238

    摘要： An acousto-optic modulator arrangement includes an optical waveguide, such as an optical fiber (5), coupled to a substrate (12) having an acoustic transducer (20) formed thereon, by an acoustically-compatible solder composition. An acoustically-compatible solder composition (25) provides advantageously low power reflections at the substrate-solder and solder-optical waveguide interfaces for acoustic waves generated by the transducer (20). Such propagated acoustic waves are then useable to modulate a light signal propagating through the waveguide (5) by an acousto-optic effect with an advantageous modulation efficiency.

    摘要翻译： 声光装置具有形成在基板（10）上的换能器（20）和通过焊料与基板接合的光波导（5）。 焊料（15）具有密度rho，并且声波可以以速度v在其中传播。密度 - 声波速度积​​rho.v相对于衬底和波导的密度 - 声波速度积​​rho.因此，由 传感器通过衬底传播并焊接，并以期望的传播效率进入波导，用于调制波导中的光信号。

    Receiving system for free-space optical communications
    6.
    发明公开
    Receiving system for free-space optical communications 审中-公开
    EmpfangsystemfürÜbertragungim freien Raum

    公开(公告)号：EP1039325A3

    公开(公告)日：2003-08-13

    申请号：EP00302052.6

    申请日：2000-03-14

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Nykolak, Gerald ,  Presby, Herman Melvin ,  Szajowski, Paul F.

    IPC分类号： G02B6/42 ,  H04B10/06 ,  H04B10/10

    CPC分类号： H04B10/1121

    摘要： An optical receiving system includes a Fresnel lens optically coupled to a detector via a tapered concentrator. The Fresnel lens is adapted to receive an electromagnetic signal and has a Fresnel focal point. The tapered concentrator has a first end surface area larger than a second end surface area. The detector has a sensing surface area oriented to receive the electromagnetic signal emerging from the tapered concentrator.

    摘要翻译： 光接收系统包括通过锥形聚光器与检测器光耦合的菲涅尔透镜。 菲涅尔透镜适于接收电磁信号并具有菲涅耳焦点。 锥形集中器具有大于第二端面面积的第一端面面积。 检测器具有被定向成接收从锥形集中器出现的电磁信号的感测表面区域。

    Method and apparatus for automatic tracking of an optical signal in a wireless optical communication system
    8.
    发明公开
    Method and apparatus for automatic tracking of an optical signal in a wireless optical communication system 有权
    用于将光信号的在无线光通信系统中的自动跟踪方法和装置

    公开(公告)号：EP1130808A2

    公开(公告)日：2001-09-05

    申请号：EP01301454.3

    申请日：2001-02-19

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Ahrens, Robert George ,  Presby, Herman Melvin ,  Tourgee, George E. ,  Tyson, John Anthony

    IPC分类号： H04B10/10

    CPC分类号： H04B10/1121

    摘要： A method and apparatus are disclosed for aligning and maintaining the alignment of the transmitting unit and the receiving unit in an optical wireless communication system. The receiving unit includes an optical bundle positioned at the focal point of an objective optic element. The optical bundle is comprised of an array of optical fibers, arranged surrounding the receiving fiber. The receiving unit also includes a number of detectors that measure the optical signal strength on a corresponding fiber in the optical bundle. The array of fibers is used to detect the location of the received signal relative to the receiving optical fiber and to provide feedback to adjust the orientation of the optical bundle to optimize the received signal strength. When misalignment occurs between the received signal and the receiving fiber, some of the incident received signal will be captured by one or more of the outer optical fibers. The amplitude of each of the generated signals are then compared to each other, thereby giving a direction in which to drive the optical bundle back into alignment with the received signal. The present invention provides automatic tracking using the information-carrying optical signal, without the need for a separate laser.

    摘要翻译： 一种方法和装置游离缺失盘用于对准和维护发送单元的一种在无线光通信系统中的对准和接收单元，该接收单元包括在在目标光学元件的焦点定位的光学束。 光束由光纤阵列，布置在接收纤维周围的。 因此，该接收单元包括多个检测器所做测量在所述光学束的相应光纤的光信号强度。 纤维的阵列被用于检测所接收的信号相对于接收光纤的位置，并提供反馈来调整光学束的取向以优化接收信号强度。 当发生接收到的信号和接收光纤之间的未对准，一些入射光的接收到的信号将通过一个或多个外光纤的被捕获。 每个所产生的信号的振幅进行比较，以海誓山盟，从而得到在其中驱动光束返回到对准与所接收的信号的方向上。 本发明提供使用所述信息承载光信号自动跟踪，而不需要一个单独的激光器。

    Optical planar waveguide notch filters
    9.
    发明公开
    Optical planar waveguide notch filters 失效
    集成光学陷波滤波器

    公开(公告)号：EP0826988A3

    公开(公告)日：1999-01-27

    申请号：EP97306297.9

    申请日：1997-08-19

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Narayanan, Chellappan ,  Presby, Herman Melvin

    IPC分类号： G02B6/12

    CPC分类号： G02B6/124 ,  G02B6/12007 ,  G02B2006/12107 ,  G02B2006/12109

    摘要： An optical planar waveguide notch filter employs a waveguide with first, second and third regions. The first and third regions have structures for propagating an optical signal in a first transmission mode. The second region is located between the first and third regions and has a structure in which an optical signal propagates in the first transmission mode as well as at least one other higher order transmission mode. The structure of the second region further couples a particular wavelength band of the signal propagating in the first transmission mode to at least one of the other transmission modes. This coupling causes an attenuation of energy of such bandwidth in the signal propagating in the first transmission mode. As a result, the signal propagating from the second region to the third region in the first transmission mode is a notch filtered signal possessing an attenuation at the particular wavelength band.

    Self-aligned mechanical M x N optical switch
    10.
    发明公开
    Self-aligned mechanical M x N optical switch 失效
    Selbstausgerichteter机械师MxN optischer Schalter

    公开(公告)号：EP0887673A2

    公开(公告)日：1998-12-30

    申请号：EP98304766.3

    申请日：1998-06-17

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Henry, Charles Howard ,  Presby, Herman Melvin

    IPC分类号： G02B6/35 ,  G02B6/12

    CPC分类号： G02B6/3508 ,  G02B6/13 ,  G02B6/26 ,  G02B6/3546 ,  G02B6/3588 ,  G02B6/3596 ,  G02B2006/12195

    摘要： A mechanically stable self-aligned MxN optical switch (1) having a low insertion loss is achieved by employing three cleaved silica optical structures (30,40,50) containing a plurality of waveguides (35,45,55). A monolithic silica optical structure is cleaved into the three corresponding structures (30,40,50). Each of the first and third structures (30,50) has a cleaved edge (32,52) and a respective set of waveguides (35,55) extending parallel to a corresponding structure surface. The second structure (40) has two substantially parallel cleaved edges (42,44) and a plurality of sets of waveguides (45) extending parallel to a corresponding structure surface. The corresponding surfaces of the first, second and third structures (30,40,50) are positioned on, for example, surfaces of respective first, second and third bases (5,10,20) aligned in a common plane. The structures are further positioned with the cleaved edges (42,44) of the second structure (40) arranged adjacent to and facing respective ones of the cleaved edges (32,52) of the first and third structures (30,50). In operation, the second structure (40) is moveable in a direction along the cleaved edges relative to the first and third structures (30,50) to selectively align different waveguide sets (45) with the waveguides (35,55) of the first and third structures (30,50) to provide various different optical connections between the waveguide sets (35,55) of the first and third structures (30,50).

    摘要翻译： 机械光学开关（1）包括从具有平行于特定结构表面延伸的波导（35,45,55）的整体式二氧化硅光学结构切割的三个二氧化硅光学结构（30,40,50）。 第一和第三结构中的每一个具有对应的切割边缘（32,52）和平行于特定表面延伸的相应的一组波导。 第二结构具有两个平行的切割边缘和几组平行于特定表面延伸的波导。 至少一个基座（5,10,20）具有位于平面中的各自的参考表面（7,12,22）。 三个结构的特定表面位于基底的参考表面上，其中第二结构的切割边缘位于第一和第三结构的相邻切割边缘并且面对相应的切割边缘。 第二结构可以沿着相对于第一和第三结构的切割边缘的方向移动，以选择性地提供第一和第三结构的波导之间的光学连接。