公开(公告)号：US20020063923A1

公开(公告)日：2002-05-30

申请号：US09884851

申请日：2001-06-18

Applicant: LIGHTCHIP, INC.

Inventor： David A. Coppeta ,  David Goodwin

IPC: H04B010/08 ,  H04J014/02

CPC classification number: G01J3/14 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G02B5/18 ,  G02B6/29304 ,  G02B6/29385 ,  G02B6/4215 ,  H04B10/077 ,  H04B10/07953 ,  H04B10/07955 ,  H04J14/0201

Abstract: A method and device for improving a signal-to-noise ratio measurement range of a monitoring device operating on a fiber optic network. The method includes receiving a wavelength division multiplexed optical signal including a plurality of optical signals centered at different wavelengths within a range of wavelengths. The wavelength division multiplexed optical signal is dispersed to form a discrete power spectrum. The discrete power spectrum is measured, and data representing the measured optical signals is generated. The measured optical signals include a point spread function response of a pixelated optical detector. A deconvolution operation is performed on the generated data to create an estimate that is more representative of the power spectrum by compensating for the point spread function of the pixelated optical detector.

Abstract translation: 一种用于改善在光纤网络上操作的监视设备的信噪比测量范围的方法和设备。 该方法包括：在波长范围内接收包含以不同波长为中心的多个光信号的波分复用光信号。 波分复用光信号被分散以形成离散功率谱。 测量离散功率谱，并产生表示测量的光信号的数据。 测量的光信号包括像素化光学检测器的点扩散函数响应。 对生成的数据执行去卷积操作，以通过补偿像素化光学检测器的点扩散函数来创建更具代表功率谱的估计。

公开(公告)号：US20030007206A1

公开(公告)日：2003-01-09

申请号：US10162161

申请日：2002-06-03

Applicant: Lightchip, Inc.

Inventor： Michael Sussman ,  David A. Coppeta

IPC: H04B010/08 ,  H04J014/02

CPC classification number: H04B10/077 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/07957

Abstract: An optical monitor device and method are disclosed for measuring characteristics of optical signals in an optical communications network. The optical monitor device may include an array of optical detector elements on which the optical signals, each having a different wavelength, may be substantially concurrently imaged, and a processing element. The array of optical detector elements may be controlled so that for each optical signal, a plurality of measurements may be obtained, with each measurement occurring at a distinct optical sensitivity level. The processing element may select, for each optical signal, the measurement providing the most accurate measurement of the optical signal. In this way, the dynamic range of the optical monitor device is increased relative to the dynamic range of the array of optical detector elements.

Abstract translation: 公开了一种用于测量光通信网络中的光信号的特性的光监视器件和方法。 光学监视器设备可以包括光学检测器元件的阵列，其上各自具有不同波长的光信号可以基本上同时成像，以及处理元件。 可以控制光学检测器元件的阵列，使得对于每个光学信号，可以获得多个测量，其中每个测量以不同的光学灵敏度水平发生。 处理元件可以为每个光信号选择提供最准确的光信号测量的测量。 以这种方式，光学监视器装置的动态范围相对于光学检测器元件阵列的动态范围增加。