Apparatus and method for controlling optical gain profiles
    1.
    发明授权
    Apparatus and method for controlling optical gain profiles 有权
    用于控制光增益曲线的装置和方法

    公开(公告)号:US06747774B2

    公开(公告)日:2004-06-08

    申请号:US10007326

    申请日:2001-12-05

    IPC分类号: G02F101

    摘要: The invention includes an apparatus for processing an input optical beam. The apparatus has at least one variable optical element to dynamically alter the polarization state of an optical beam to form a polarization-altered optical beam, wherein the polarization-altered optical beam includes elliptical polarization. At least one wave plate operates on the polarization-altered optical beam, each wave plate has a selected retardation, order of retardation, and orientation. A polarization analyzer, operating in conjunction with the at least one variable optical element and wave plate, alters the transmitted amplitude of the polarization-altered optical beam as a function of wavelength, and thereby produces an output optical beam with transmitted amplitude adjusted as a function of wavelength.

    摘要翻译: 本发明包括一种用于处理输入光束的装置。 该装置具有至少一个可变光学元件,以动态地改变光束的偏振状态以形成偏振改变的光束,其中偏振改变的光束包括椭圆偏振。 至少一个波片在偏振改变的光束上操作,每个波片具有选择的延迟,延迟阶数和取向。 与至少一个可变光学元件和波片一起操作的偏振分析器改变作为波长的函数的偏振改变的光束的透射振幅,从而产生具有作为功能的透射幅度的输出光束 的波长。

    Apparatus and method for optical switching with liquid crystals and birefringent wedges
    2.
    发明授权
    Apparatus and method for optical switching with liquid crystals and birefringent wedges 有权
    用液晶和双折射楔形光学切换的装置和方法

    公开(公告)号:US07492986B1

    公开(公告)日:2009-02-17

    申请号:US11737122

    申请日:2007-04-18

    申请人: Jack R. Kelly

    发明人: Jack R. Kelly

    IPC分类号: G02B6/42

    摘要: An optical switching apparatus includes at least one optical waveguide to deliver at least one input optical beam. A dispersion device spatially separates the at least one input optical beam into individual wavelength channels. An optical power device aligns the individual wavelength channels. An optical switch has at least one transflective polarizing element, at least one birefringent wedge and at least two polarization switches. The individual wavelength channels are directed to independently addressable regions of the polarization switches for wavelength selective switching. A second optical power device aligns the individual wavelength channels from the optical switch. A second dispersion device spatially combines individual wavelength channels from the second optical power device. At least one output optical waveguide receives at least one of the individual wavelength channels from the second dispersion device.

    摘要翻译: 光学开关装置包括至少一个光波导以输送至少一个输入光束。 分散装置将至少一个输入光束空间分离成各个波长通道。 光功率器件对齐各个波长通道。 光学开关具有至少一个透反射偏振元件,至少一个双折射楔和至少两个偏振开关。 单个波长信道被引导到用于波长选择性切换的偏振开关的独立可寻址区域。 第二光功率器件对准来自光开关的各个波长通道。 第二分散装置在空间上组合来自第二光功率装置的各个波长通道。 至少一个输出光波导从第二分散装置接收各波长信道中的至少一个。

    Apparatus and method for controlling optical gain profiles in a temperature independent manner
    5.
    发明授权
    Apparatus and method for controlling optical gain profiles in a temperature independent manner 有权
    用于以温度无关的方式控制光学增益曲线的装置和方法

    公开(公告)号:US06614572B2

    公开(公告)日:2003-09-02

    申请号:US10150206

    申请日:2002-05-17

    IPC分类号: G02F101

    摘要: An apparatus for processing an optical beam has at least one variable optical element to dynamically alter the polarization state of a polarized optical beam to form a polarization-altered optical beam. The polarization-altered optical beam includes elliptical polarization. The at least one variable optical element is a compound birefringent crystal with a designed retardation response to temperature variations. In one embodiment, the compound birefringent crystal has a designed retardation response that is substantially invariant with operating temperature variations. At least one wave plate processes the polarized optical beam. Each wave plate has a selected retardation, order of retardation, and orientation. A polarization analyzer is operative in conjunction with the at least one variable optical element and wave plate to alter the transmitted amplitude of the polarization-altered optical beam as a function of wavelength, and thereby produce an output optical beam with transmitted amplitude adjusted as a function of wavelength.

    摘要翻译: 用于处理光束的装置具有至少一个可变光学元件,以动态地改变偏振光束的偏振状态以形成偏振改变的光束。 偏振改变的光束包括椭圆偏振。 所述至少一个可变光学元件是具有针对温度变化设计的延迟响应的复合双折射晶体。 在一个实施例中,化合物双折射晶体具有与工作温度变化基本上不变的设计的延迟响应。 至少一个波片处理偏振光束。 每个波片具有选择的延迟,延迟阶数和取向。 偏振分析器与至少一个可变光学元件和波片结合操作以改变作为波长的函数的偏振改变的光束的透射振幅,从而产生具有作为功能的透射幅度的输出光束 的波长。

    Apparatus and method for achromatic liquid crystal electro-optic modulation
    6.
    发明授权
    Apparatus and method for achromatic liquid crystal electro-optic modulation 有权
    无色液晶电光调制装置及方法

    公开(公告)号:US06765635B1

    公开(公告)日:2004-07-20

    申请号:US10035804

    申请日:2001-12-28

    IPC分类号: G02F11347

    摘要: An achromatic half wave plate includes a first twisted nematic liquid crystal layer, a second twisted nematic liquid crystal layer, and a uniaxial half wave plate between the first twisted nematic liquid crystal layer and the second twisted nematic liquid crystal layer. In one embodiment the first twisted nematic liquid crystal layer and the second twisted nematic liquid crystal layer have an identical twist angle of 135 degrees. The optic axis at the entrance of the first twisted nematic liquid crystal layer is substantially orthogonal to the optic axis at the exit of the second twisted nematic liquid crystal layer.

    摘要翻译: 消色差半波片包括在第一扭曲向列型液晶层和第二扭曲向列型液晶层之间的第一扭曲向列型液晶层,第二扭曲向列型液晶层和单轴半波片。 在一个实施方案中,第一扭曲向列型液晶层和第二扭曲向列型液晶层具有135度的相同扭转角。 第一扭曲向列型液晶层入口处的光轴与第二扭曲向列型液晶层出口处的光轴基本正交。