基于VC^(++)的EDFA自动校准及瞬态测试系统的开发

EDFA automatic calibration and test system based on VC^(++)

为了减少校准测试过程中人为因素引起的误差,提升产品测试的精确度和测试效率,自主开发了一种掺铒光纤放大器自动校准测试系统。根据影响光学指标各因素设计合理的校准测试方案,设计了掺铒光纤放大器测试光路切换开关,利用通用接口总线对设备进行自动化控制,VC++实现自动化控制及测试。采用分层的模块化设计,具有高内聚、松耦合的特点,多数子模块封装成动态链接库,软件的兼容性与扩展性强,其维护修改更加容易。经过试验验证,使用自动控制测试设备和光路切换开关的掺铒光纤放大器的研发测试效率提高了60%。结果表明,此自动校准测试系统能有效提高测试效率和测试精度,具有研发生产的实用价值。

In order to reduce the error caused by manual operation in test process,improve testing efficiency and accuracy, a new automatic erbium-doped optical fiber amplifier（EDFA） calibration and test system was developed. The optical switch in the testing system was designed according to the factors affecting the optical performance. The automatic device was controlled through general-purpose interface bus（GPIB） interface. The automatic control and test was realized by VC＋＋ , the software was designed in modular pattern with high cohesion and low coupling characteristics. Major sub-modules were encapsulated as a dynamic link library so that the compatibility and expansibility of software was enhanced, and it＇ s also easier to maintain and modify the software. The efficiency was improved by 60% in the experiments. The result indicates that the testing system is full of practical value for its high test efficiency and accuracy.