• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The mediterranean journal of electronics and communications >AN IMPROVED OPTICAL PLL FOR COHERENT RECEIVERS
【24h】

AN IMPROVED OPTICAL PLL FOR COHERENT RECEIVERS

机译：用于相干接收器的改进型光学PLL

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new coherent receiver based on an optical PLL has been investigated in this paper. An additional optical phase modulation to VCO laser is incorporated for negative feedback to cancel the phase error alongwith the relaxation of lasers linewidth requirements and also to enhance dynamic stability of the system. Theoretical analysis have been made to obtain the transfer function, error function and phase error variance in terms of line-width requirement and loop stability. The investigation of receiver performance shows that the limitation of stringent lasers linewidth requirement has been relaxed upto 2MHz and phase error reduces by 0.015rad~2 for a typical system with phase modulation sensitivity 4×10~(-10) rad/V. Thus, commercially available DFB lasers (linewidth 10-50 MHz) will be hooked up in this scheme successfully in practical system.
机译：本文研究了一种基于光学PLL的新型相干接收机。 VCO激光器的附加光学相位调制可用于负反馈，以消除相位误差以及放宽激光器的线宽要求，并增强系统的动态稳定性。从线宽要求和回路稳定性方面进行了理论分析，以获得传递函数，误差函数和相位误差方差。对接收机性能的研究表明，对于典型的相位调制灵敏度为4×10〜（-10）rad / V的系统，严格的激光器对线宽要求的限制已放宽到2MHz，相位误差降低了0.015rad〜2。因此，商业上可获得的DFB激光器（线宽10-50 MHz）将在实际系统中成功连接到该方案中。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号