An Integrated 40 Gbit/s Optical Costas Receiver
An Integrated 40 Gbit/s Optical Costas Receiver
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DOI：
10.1109/jlt.2013.2265075
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发表时间：
2013-07
影响因子：
4.7
通讯作者：
Mingzhi Lu;Hyun-Chul Park;E. Bloch;A. Sivananthan;J. Parker;Z. Griffith;L. Johansson;M. Rodwell;L. Coldren
中科院分区：
文献类型：
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作者：
Mingzhi Lu;Hyun-Chul Park;E. Bloch;A. Sivananthan;J. Parker;Z. Griffith;L. Johansson;M. Rodwell;L. Coldren
本文报道了一种高集成度、宽调谐的光零差接收机，其数据速率为40 Gbaud/S。采用光电集成技术，实现了10×10mm2的接收机，系统具有很强的鲁棒性和抗环境变化的能力。介绍了一种集成光子相干接收电路，其光电探测器带宽为35 GHz，集成本机振荡器(LO)激光器覆盖40 nm范围。电子集成电路(EIC)的工作频率高达50 GHz。对反馈环路进行了详细的分析和设计，实验结果表明>；1.1 GHz环路带宽符合设计要求。保持范围测量为>；15 GHz。发射激光的相位噪声被很好地克隆到LO激光器上，线宽测量和相位噪声测量都没有显示出二进制相移键控(BPSK)数据与光学锁相环(OPLL)之间的明显串扰。无误码(误码率<lt；；10-12)可达35Gbit/S。系统功耗为3瓦。
In this paper, a highly-integrated widely-tunable optical homodyne receiver is reported with 40 Gbaud/s data rate. By using photonic and electronic integration, the receiver is realized within a size of 10 × 10 mm2, and the system is very robust and resistive to environmental changes. An integrated photonic coherent receiver circuit is demonstrated with 35 GHz photodetector bandwidth, and the integrated local oscillator (LO) laser covers a 40 nm range. The electronic IC (EIC) has a working frequency up to 50 GHz. The feedback loop is carefully analyzed and designed, and the experimental results show > 1.1 GHz loop bandwidth, which matches the design. The hold-in range is measured to be > 15 GHz. The phase noise of the transmitting laser has been cloned to the LO laser quite well, and both the linewidth measurement and phase noise measurement show no observable cross talk between binary phase shift keying (BPSK) data and the optical phase-locked loop (OPLL). Error free ( bit error rate <; 10-12) is achieved up to 35 Gbit/s. The system consumes 3 Watts of power.