公开(公告)号：US06661503B1

公开(公告)日：2003-12-09

申请号：US09485723

申请日：2000-05-12

申请人： Kazuo Yamaguchi ,  Takashi Minato ,  Shinzoo Nishiyama ,  Atsushi Murata ,  Naohiko Baba ,  Tsutomu Yoshiya ,  Kazumi Kawamoto ,  Kyouichi Yamamoto ,  Kazuo Aoyama

发明人： Kazuo Yamaguchi ,  Takashi Minato ,  Shinzoo Nishiyama ,  Atsushi Murata ,  Naohiko Baba ,  Tsutomu Yoshiya ,  Kazumi Kawamoto ,  Kyouichi Yamamoto ,  Kazuo Aoyama

IPC分类号： G01N2100

CPC分类号： G01M11/331

摘要： A method of manufacturing an optic transmission module assures a high reliability for the module by inspecting the character of a low bit error rate (BER) of the module quickly and accurately. The module is employed in an optical communication system (light transmission system) required to cope with information communication systems that are becoming faster and faster in operation and larger and larger in capacity. Also disclosed is a system and a method for inspection of the BER character which uses a rectangular wave pulse as an interference light to calculate a degradation quantity of a signal-to-noise ratio (S/N) on the basis of a simple theory, thereby inspecting the BER character by extrapolating a case in which there is no interference light (S/X=∞ or X=0) with use of a sign error rate theoretical value according to a bit error rate of a light signal measured according to the degradation quantity.

摘要翻译： 制造光传输模块的方法通过快速，准确地检查模块的低误码率（BER）的特性来确保模块的高可靠性。 该模块用于应对在运行中变得越来越快，容量越来越大的信息通信系统所需的光通信系统（光传输系统）中。 还公开了一种基于简单的理论，使用矩形波脉冲作为干涉光来检查BER特性的系统和方法来计算信噪比（S / N）的劣化量， 从而通过使用符号误差率理论值，根据根据该信号测量的光信号的误码率外推不存在干扰光的情况（S / X =∞或X = 0）来检查BER特性 降解量。