公开(公告)号：US06559943B1

公开(公告)日：2003-05-06

申请号：US09736982

申请日：2000-12-14

Applicant: David W. Hall ,  Hitesh R. Mehta

Inventor： David W. Hall ,  Hitesh R. Mehta

IPC: G01B1100

CPC classification number: H04B10/675

Abstract: A fiber optic system includes an optical fiber carrying an optical signal having a wavelength peak, an optical detector coupled to the optical fiber for detecting a current optical level (e.g. a photon power level), and a tunable optical filter coupled to the optical fiber upstream from the optical detector. The system further includes a controller connected to the optical detector and the tunable optical filter, for stepping the tunable optical filter over a sequence of wavelengths while analyzing respective optical levels, and for reversing the stepping direction of the tunable optical filter, based upon the current optical level being less than a prior optical level, to locate the wavelength peak of the at least one optical signal. A sample rate is reduced when the wavelength peak of the optical signal is located, to thereby reduce a power consumption of the controller.

Abstract translation: 光纤系统包括承载具有波长峰值的光信号的光纤，耦合到光纤的光学检测器，用于检测当前光学电平（例如，光子功率电平）以及耦合到上游光纤的可调光滤波器 从光学检测器。 该系统还包括连接到光学检测器和可调谐滤光器的控制器，用于在分析各个光学水平的同时对可调谐光学滤波器进行步进，同时基于电流来反转可调谐滤光器的步进方向 光学水平小于先前光学水平，以定位至少一个光信号的波长峰值。 当光信号的波长峰值位于时，采样率降低，从而降低控制器的功耗。