公开(公告)号：EP1669729A1

公开(公告)日：2006-06-14

申请号：EP04029252.6

申请日：2004-12-09

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

发明人： McAlexander, William I. ,  Gurunathan, Mohan ,  Pering, Richard D.

IPC分类号： G01J9/04 ,  G01R23/14

CPC分类号： G01J9/04

摘要： A phase-diverse coherent optical spectrum analyzer is presented. An optical receiver receives a first input signal and a second input signal, and produces at least a first output signal, a second output signal, and a third output signal based on mixing the first input signal and the second input signal. A processing unit isolates heterodyne components from the first output signal, the second output signal and the third output signal, wherein the heterodyne components comprise a first signal and a second signal that represent the phase-diverse nature of the optical mixing process. Phase diversity of the heterodyning between the first input signal and the second input signal is achieved by the coherent optical spectrum analyzer.

摘要翻译： 提出了一个相位多样的相干光谱分析仪。 光接收器接收第一输入信号和第二输入信号，并且基于混合第一输入信号和第二输入信号，产生至少第一输出信号，第二输出信号和第三输出信号。 处理单元将外差分量与第一输出信号，第二输出信号和第三输出信号隔离，其中外差分量包括表示光学混合过程的相位多样性的第一信号和第二信号。 第一输入信号和第二输入信号之间的外差的相位分集由相干光谱分析仪实现。

公开(公告)号：EP1541981A1

公开(公告)日：2005-06-15

申请号：EP04029245.0

申请日：2004-12-09

申请人： Agilent Technologies Inc. (a Delaware Corporation)

发明人： McAlexander, William I.

IPC分类号： G01J9/00

CPC分类号： G01J3/28 ,  G01J9/04

摘要： Embodiments in accordance with the invention provide an optical spectrum analyzer. The optical spectrum analyzer 100 includes a receiver 130 for receiving an optical local oscillator signal 110 and an unknown optical signal 120. The receiver 130 outputs three or more phase-diverse heterodyne signals. The phase-diverse heterodyne signals are coupled to a phase quadrature generator 140. The phase quadrature generator 140 produces a first and second phase quadrature signals that are ninety degrees out of phase with respect to each other. The first and second phase quadrature signals are coupled to a complex signal generator 150. The complex signal generator 150 produces a complex signal having a positive and negative image. A measurement processing unit 160 determines the phase of the unknown optical signal from the relative difference of the phase of the positive and negative image of the complex signal.

摘要翻译： 根据本发明的实施例提供一种光谱分析仪。 光谱分析仪100包括用于接收光学本地振荡器信号110和未知光信号120的接收器130.接收器130输出三个或更多个相位分集外差信号。 相位多相外差信号被耦合到相位正交发生器140.相位正交发生器140产生相对于彼此相位九十度的第一和第二相位正交信号。 第一和第二相位正交信号耦合到复信号发生器150.复信号发生器150产生具有正和负像的复信号。 测量处理单元160根据复数信号的正和负图像的相位的相对差来确定未知光信号的相位。