首页> 外文期刊>Applied optics >Photonic generation of ultrawideband signals based on a gain-switched semiconductor laser with optical feedback
【24h】

Photonic generation of ultrawideband signals based on a gain-switched semiconductor laser with optical feedback

机译:基于带有光反馈的增益开关半导体激光器的超宽带信号的光子产生

获取原文
获取原文并翻译 | 示例
           

摘要

A simple photonic approach to generate ultrawideband (UWB) pulse signals utilizing a gain-switched semiconductor laser with optical feedback is proposed and demonstrated. The RF spectrum of the generated chaotic UWB signals has a -10 dB bandwidth of 9 GHz and central frequency of 6.6 GHz (fractional bandwidth of 155%), which is consistent with the Federal Communications Commission indoor mask. The central frequency and -10 dB bandwidth can be tuned by adjusting the bias current and feedback strength of the semiconductor laser. After transmission through a 30 km single-mode fiber, the spectrum shape of the chaotic UWB signals is almost unaffected by the chromatic dispersion of the fiber.
机译:提出并演示了一种简单的光子方法,该方法利用具有光反馈的增益开关半导体激光器来生成超宽带(UWB)脉冲信号。生成的混沌UWB信号的RF频谱具有-10 dB的9 GHz带宽和6.6 GHz的中心频率(分数带宽为155%),这与联邦通信委员会的室内口罩一致。中心频率和-10 dB带宽可以通过调整半导体激光器的偏置电流和反馈强度来进行调整。通过30 km单模光纤传输后,混沌UWB信号的频谱形状几乎不受光纤色散的影响。

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