摘要
针对光收发模块接收端灵敏度测试时间较长的问题,提出了先通过最小二乘法拟合出接收光功率与误码率的关系曲线,再利用该曲线通过外推法来近似估算基于PIN的光接收器灵敏度的方法。介绍了基于该方法的自动测试系统的架构,测试程序的执行流程和算法实现以及测试步骤。测试过程及结果表明,该测试系统在控制测试误差的基础上大大提高了测试效率。
As the test time of optical receiver sensitivity is too long to be used in mass production,an optimized method that through fitting a received optical power-BER curve using least-squares method,extrapolate the approximate sensitivity value of PIN-based optical receiver is proposed.This paper described the auto test system working principle and architecture,the methods used to test sensitivity,software implementation of the testing algorithm,and the test procedures.The testing process and results show that the test system has greatly enhanced test efficiency while the testing precise of the sensitivity is acceptable.
出处
《电子测量技术》
2010年第4期7-11,共5页
Electronic Measurement Technology
