光模块消光比的补偿方法  

Compensation for extinction ratios of optical modules

作　　者：王三[1] 徐红春[1] 

机构地区：[1]武汉电信器件有限公司,光纤通信技术和网络国家重点实验室,湖北武汉430074

出　　处：《中国光学》2011年第6期648-653,共6页Chinese Optics

基　　金：国家863高技术研究发展计划资助项目(No.2006AA01Z284)

摘　　要：提出了一种新型光模块消光比补偿方法。该方法首先根据不同温度下驱动芯片上报电流的大小,结合光功率和消光比的计算公式,模拟出激光器光功率随电流及电压的变化曲线。然后根据要求调整激光器调制电流的大小,以保持消光比的稳定。该补偿方式有效地解决了光器件一致性较差的问题,可以将原来斜效率的指标适当放宽10%,从而提高了利用率和成品率,降低了模块生产成本。A new way of extinction ratio compensation for optical modules is proposed.According to the driver current with different temperatures,combined with the calculating methods for the optical power and extinction ratio,the curves of the laser power with current and voltage changings are simulated.And then the modulation current on principle is adjusted to keep the stability of extinction ratio.The compensation way solves the problem of bad laser efficiency uniformity and extends the value of slope efficiency about ten percent.The proposed method improves utilization and yield products,and reduces product costs.

关 键 词：光纤收发合一模块 消光比 K系数 斜效率 补偿 调制电流 

分 类 号：TN256[电子电信—物理电子学]