可调谐激光器波长测试系统的设计与实现  

Design and implementation of automatic test system of tunable laser wavelength

作　　者：何伟奇 黄晓东 赵建宜 HE Wei-qi;HUANG Xiao-dong;ZHAO Jian-yi(Wuhan Research Institute of Posts and Telecommunications,Wuhan 430074,China;Accelink Technologies Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]武汉光迅科技股份有限公司,湖北武汉430074

出　　处：《电子设计工程》2020年第16期102-105,110,共5页Electronic Design Engineering

摘　　要：根据可调谐SG-DBR(Sampled Grating DBR)激光器的波长在注入光栅电流下的波长变化特性,本文设计了一套波长自动测试并且输出ITU规定的信道波长的系统。本系统通过LabVIEW控制相应的仪表对单片集成的SG-DBR激光器提供一定范围内的电流扫描,同时采集激光器输出的光谱数据。使用MATLAB对数据进行分析和处理,按照波长的大小生成"波长/SMSR-电流"数据查询表。通过调用数据记录表中的数据,即可准确控制SG-DBR激光器的输出波长和输出功率。本文采用了新的测试方案,简化了测试过程。实验证明,新方案可行且系统稳定可靠且波长控制误差不超过±0.02 nm。According to the wavelength tuning characteristics of the tunable SG-DBR laser,a set of automatic wavelength test system was completed.The system provides current scanning through a singlechip integrated SG-DBR laser through LabVIEW,while acquiring spectral data from the laser output.The data is then analyzed and processed using MATLAB to generate a"wavelength-current"data lookup table for the SG-DBR laser.The output wavelength of the SG-DBR laser can be accurately controlled by calling the data lookup table.An new test plan was proposed in this paper,simplified testing process.Experiments show that the system is stable and reliable and the wavelength control error is not more than±0.02 nm.

关 键 词：可调谐激光器 波长测试 波长控制 虚拟仪器 

分 类 号：TN29[电子电信—物理电子学]