Delay interferometer and demodulator
    1.
    发明授权
    Delay interferometer and demodulator 有权
    延迟干涉仪和解调器

    公开(公告)号:US07848662B2

    公开(公告)日:2010-12-07

    申请号:US11797436

    申请日:2007-05-03

    CPC分类号: H04L27/223 H04B10/66

    摘要: A delay interferometer and a demodulator including the delay interferometer and a balanced photodetector are provided. A half mirror splits an optical signal into first and second split beams of light which travel on first and second optical paths, respectively. A first reflector being disposed on the first optical path reflects the first split beam of light toward the half mirror. The second reflector being disposed on the second optical path reflects the second split beam of light toward the half mirror. At least one phase compensator being disposed between the half mirror and at least one of the first and second reflectors includes a medium that exhibits thermooptic effect and has temperature dependency of refractive index. The half mirror couples the first and second split beams of light to generate at least first and second coupled beams of light.

    摘要翻译: 提供了延迟干涉仪和包括延迟干涉仪和平衡光电检测器的解调器。 半镜分别将光信号分离成在第一和第二光路上行进的第一和第二分束光束。 设置在第一光路上的第一反射器将第一分束光朝向半反射镜反射。 设置在第二光路上的第二反射器将第二分束光朝向半反射镜反射。 设置在半反射镜和第一反射器和第二反射器中的至少一个之间的至少一个相位补偿器包括呈现光光效应并且具有折射率的温度依赖性的介质。 半反射镜耦合第一和第二分束光以产生至少第一和第二耦合光束。

    Delay interferometer and demodulator
    2.
    发明申请
    Delay interferometer and demodulator 有权
    延迟干涉仪和解调器

    公开(公告)号:US20070264029A1

    公开(公告)日:2007-11-15

    申请号:US11797436

    申请日:2007-05-03

    IPC分类号: H04B10/04

    CPC分类号: H04L27/223 H04B10/66

    摘要: A delay interferometer and a demodulator including the delay interferometer and a balanced photodetector are provided. A half mirror splits an optical signal into first and second split beams of light which travel on first and second optical paths, respectively. A first reflector being disposed on the first optical path reflects the first split beam of light toward the half mirror. The second reflector being disposed on the second optical path reflects the second split beam of light toward the half mirror. At least one phase compensator being disposed between the half mirror and at least one of the first and second reflectors includes a medium that exhibits thermooptic effect and has temperature dependency of refractive index. The half mirror couples the first and second split beams of light to generate at least first and second coupled beams of light.

    摘要翻译: 提供了延迟干涉仪和包括延迟干涉仪和平衡光电检测器的解调器。 半镜分别将光信号分离成在第一和第二光路上行进的第一和第二分束光束。 设置在第一光路上的第一反射器将第一分束光朝向半反射镜反射。 设置在第二光路上的第二反射器将第二分束光朝向半反射镜反射。 设置在半反射镜和第一反射器和第二反射器中的至少一个之间的至少一个相位补偿器包括呈现光光效应并且具有折射率的温度依赖性的介质。 半反射镜耦合第一和第二分束光以产生至少第一和第二耦合光束。

    Pulse pattern generating apparatus
    4.
    发明授权
    Pulse pattern generating apparatus 失效
    脉冲图案生成装置

    公开(公告)号:US07522660B2

    公开(公告)日:2009-04-21

    申请号:US10897073

    申请日:2004-07-23

    IPC分类号: H04B3/46

    CPC分类号: G01R31/3171 G01R31/31928

    摘要: An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.

    摘要翻译: 本发明的一个目的是实现即使当眼图的形状改变时也输出高波形质量的测试信号的脉冲图形生成装置。 本发明是通过使用多个数模转换器生成预定模式的测试信号并将测试信号输出给测试对象的脉冲图案生成装置的改进。 该装置包括:参数设置单元,用于设置确定测试信号的眼图的形状的多个参数的值; 存储单元,用于根据参数的值存储对数模转换器的输出值; 算术运算单元,用于根据来自参数设定单元的参数值和存储单元中的输出值计算出数字模拟转换器的输出值; 以及电压值设定单元,用于根据算术运算单元的运算结果,对数模转换器设定从数模转换器输出的电压值。

    Pulse pattern generating apparatus
    5.
    发明申请
    Pulse pattern generating apparatus 失效
    脉冲图案生成装置

    公开(公告)号:US20050058190A1

    公开(公告)日:2005-03-17

    申请号:US10897073

    申请日:2004-07-23

    CPC分类号: G01R31/3171 G01R31/31928

    摘要: An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.

    摘要翻译: 本发明的一个目的是实现即使当眼图的形状改变时也输出高波形质量的测试信号的脉冲图形生成装置。 本发明是通过使用多个数模转换器生成预定模式的测试信号并将测试信号输出给测试对象的脉冲图案生成装置的改进。 该装置包括:参数设置单元,用于设置确定测试信号的眼图的形状的多个参数的值; 存储单元,用于根据参数的值存储对数模转换器的输出值; 算术运算单元,用于根据来自参数设定单元的参数值和存储单元中的输出值计算出数字模拟转换器的输出值; 以及电压值设定单元,用于根据算术运算单元的计算结果,对数模转换器设定从数模转换器输出的电压值。

    Variable light signal delay apparatus, and variable light signal delay system using the same
    9.
    发明授权
    Variable light signal delay apparatus, and variable light signal delay system using the same 失效
    可变光信号延迟装置,以及使用其的可变光信号延迟系统

    公开(公告)号:US07567737B2

    公开(公告)日:2009-07-28

    申请号:US11168426

    申请日:2005-06-29

    IPC分类号: G02B6/26 G02B6/42

    CPC分类号: G02B6/2861 G02B6/2821

    摘要: A variable light signal delay apparatus includes a first delay optical fiber, a second delay optical fiber having a length different from the first delay optical fiber, and an optical switch having two input ports, two output ports, and paths, through which a light signal propagates, provided between the first delay optical fiber and the second delay optical fiber, in which a light signal input from at least one of the input ports propagated through either the first delay optical fiber or the second delay optical fiber or through neither the first delay optical fiber nor the second delay optical fiber to be output from a desired first output port.

    摘要翻译: 可变光信号延迟装置包括第一延迟光纤,具有与第一延迟光纤不同的长度的第二延迟光纤,以及具有两个输入端口,两个输出端口和路径的光开关,光信号 传播,设置在第一延迟光纤和第二延迟光纤之间,其中从至少一个输入端口输入的光信号通过第一延迟光纤或第二延迟光纤传播,或者通过第一延迟光纤 光纤,也可以是从期望的第一输出端口输出的第二延迟光纤。