DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark.
Opt Lett. 2011 Mar 15;36(6):810-2. doi: 10.1364/OL.36.000810.
We propose an approach to generate ultrawideband (UWB) pulses with tunable high-speed modulation based on pulse compression. Flexible generation of up to a record 5 Gbits/s on-off keying impulse radio UWB signals are successfully demonstrated as well. We also investigate 5 Gbits/s on-off keying bit-error-rate (BER) performance after 40 km single mode fiber transmission by employing a digital signal processing receiver, and the BER below forward error correction limit is achieved.
我们提出了一种基于脉冲压缩的可产生超宽带（UWB）脉冲的方法，该方法可以进行高速调制。成功地演示了高达 5Gbits/s 的开关键控脉冲无线电 UWB 信号的灵活产生。我们还通过采用数字信号处理接收器研究了经过 40km 单模光纤传输后的 5Gbits/s 的开关键控误码率（BER）性能，并且达到了前向纠错限制以下的 BER。
