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    REDUCING CROSSTALK IN FREE-SPACE OPTICAL COMMUNICATIONS
    2.
    发明申请
    REDUCING CROSSTALK IN FREE-SPACE OPTICAL COMMUNICATIONS 审中-公开
    减少自由空间光通信中的串扰

    公开(公告)号：WO2008105800A2

    公开(公告)日：2008-09-04

    申请号：PCT/US2007/015705

    申请日：2007-07-10

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHOWDHURY, Aref ,  RAYBON, Gregory

    Inventor： CHOWDHURY, Aref ,  RAYBON, Gregory

    CPC classification number: H04B10/118 ,  H04B10/1121

    Abstract: An optical transmitter includes a modulator, a dispersion adjustment module, and an optical amplifier. The optical transmitter is configured to transmit optical pulses over a free-space optical communication channel. The modulator is configured to produce an optical carrier that is amplitude and/or phase modulated by data. The dispersion adjustment module is connected between the modulator and the amplifier and is configured to substantially change temporal widths of optical pulses received from the modulator by changing dispersions of the received optical pulses.

    Abstract translation: 光发射机包括调制器，色散调节模块和光放大器。 光发射器被配置为通过自由空间光通信信道发送光脉冲。 调制器被配置为产生由数据幅度和/或相位调制的光载波。 色散调整模块连接在调制器和放大器之间，并且被配置为通过改变所接收的光脉冲的色散来实质上改变从调制器接收的光脉冲的时间宽度。

    NONLINEAR OPTICAL DEVICES BASED ON METAMATERIALS
    3.
    发明申请
    NONLINEAR OPTICAL DEVICES BASED ON METAMATERIALS 审中-公开
    基于元素的非线性光学器件

    公开(公告)号：WO2007133727A1

    公开(公告)日：2007-11-22

    申请号：PCT/US2007/011515

    申请日：2007-05-14

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHOWDHURY, Aref ,  TATARONIS, John, A

    Inventor： CHOWDHURY, Aref ,  TATARONIS, John, A

    IPC: G02F1/35 ,  H04B10/17

    CPC classification number: G02F1/353 ,  G02F1/3534 ,  G02F1/355 ,  G02F1/365 ,  G02F2202/30

    Abstract: An apparatus includes one or more optical couplers, an optical medium, and an optical pump source. The optical medium behaves as a negative refractive index material over a frequency range. The one or more optical couplers are configured to provide first and second optical inputs to the optical medium and to provide an optical output from the optical medium. The optical pump source is coupled by one of the one or more optical couplers to deliver pump light to the optical medium.

    Abstract translation: 一种装置包括一个或多个光耦合器，光介质和光泵源。 光学介质在频率范围内表现为负折射率材料。 一个或多个光耦合器被配置为向光介质提供第一和第二光输入并提供来自光介质的光输出。 光泵浦源由一个或多个光耦合器中的一个耦合，以将泵浦光输送到光学介质。

    POLARIZATION-DIVERSE OPTICAL AMPLIFICATION
    4.
    发明申请
    POLARIZATION-DIVERSE OPTICAL AMPLIFICATION 审中-公开

    公开(公告)号：WO2007127341A3

    公开(公告)日：2007-11-08

    申请号：PCT/US2007/010187

    申请日：2007-04-26

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHOWDHURY, Aref ,  DOERR, Christopher, Richard ,  RAYBON, Gregory

    Inventor： CHOWDHURY, Aref ,  DOERR, Christopher, Richard ,  RAYBON, Gregory

    IPC: H01S3/10 ,  H01S5/50

    Abstract: A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium (14) and a polarization splitter (12). The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.

    REDUCING CROSSTALK IN FREE-SPACE OPTICAL COMMUNICATIONS
    6.
    发明申请
    REDUCING CROSSTALK IN FREE-SPACE OPTICAL COMMUNICATIONS 审中-公开
    减少自由空间光通信中的CROSSTALK

    公开(公告)号：WO2008105800A3

    公开(公告)日：2008-11-06

    申请号：PCT/US2007015705

    申请日：2007-07-10

    Applicant: LUCENT TECHNOLOGIES INC ,  CHOWDHURY AREF ,  RAYBON GREGORY

    Inventor： CHOWDHURY AREF ,  RAYBON GREGORY

    IPC: H04B10/10

    CPC classification number: H04B10/118 ,  H04B10/1121

    Abstract: An optical transmitter includes a modulator, a dispersion adjustment module, and an optical amplifier. The optical transmitter is configured to transmit optical pulses over a free-space optical communication channel. The modulator is configured to produce an optical carrier that is amplitude and/or phase modulated by data. The dispersion adjustment module is connected between the modulator and the amplifier and is configured to substantially change temporal widths of optical pulses received from the modulator by changing dispersions of the received optical pulses.

    Abstract translation: 光发射机包括调制器，色散调节模块和光放大器。 光发射机被配置为在自由空间光通信信道上发射光脉冲。 调制器被配置为产生由数据进行幅度和/或相位调制的光载波。 色散调节模块连接在调制器和放大器之间，并被配置为通过改变所接收的光脉冲的分散来大大改变从调制器接收的光脉冲的时间宽度。

    POLARIZATION-DIVERSE OPTICAL AMPLIFICATION
    7.
    发明申请
    POLARIZATION-DIVERSE OPTICAL AMPLIFICATION 审中-公开
    极化多光学放大

    公开(公告)号：WO2007127341A2

    公开(公告)日：2007-11-08

    申请号：PCT/US2007010187

    申请日：2007-04-26

    Applicant: LUCENT TECHNOLOGIES INC ,  CHOWDHURY AREF ,  DOERR CHRISTOPHER RICHARD ,  RAYBON GREGORY

    Inventor： CHOWDHURY AREF ,  DOERR CHRISTOPHER RICHARD ,  RAYBON GREGORY

    CPC classification number: H01S5/5009 ,  H01S3/06712 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/1301 ,  H01S3/2308

    Abstract: A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.

    Abstract translation: 偏振分集光放大器包括偏振光敏光学介质和偏振分光器。 偏振分离器被配置为接收输入光，以将接收的输入光的第一偏振分量引导到第一光路段，并将接收的输入光的第二偏振分量引导到单独的第二光路段。 活动介质具有第一和第二光学端口。 第一光口位于第一光路段的一端。 第二端口处于第二光路段的一端。 响应于在另一个端口处接收输入光，有源介质从一个端口输出放大的光。 在优选实施例中，活性介质具有内部光轴，并且第一和第二组分的极化相对于该轴取向，从而增强了放大。 两个光路段可以包括偏振保持光波导。

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