Chapter

Ultrahigh-Speed Optical Transmission Technology

Volume 3 of the series Optical and Fiber Communications Reports pp 21-51

Semiconductor mode-locked lasers as pulse sources for high bit rate data transmission

  • Leaf A. JiangAffiliated withResearch Laboratories of Electronics, Massachusetts Institute of Technology
  • , Erich P. IppenAffiliated withResearch Laboratories of Electronics, Massachusetts Institute of Technology
  • , Hiroyuki YokoyamaAffiliated withNew Industry Creation Hatchery Center (NICHe), Tohoku University

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Abstract

Semiconductor mode-locked lasers are evaluated as pulse sources for high bit rate data transmission. This chapter describes the requirements of OTDM sources for high bit rate data transmission, compares various OTDM source technologies, describes three semiconductor mode-locked laser cavity designs, explains the impact of timing jitter and amplitude noise on OTDM performance, illustrates how to characterize noise of OTDM sources using rf and optical techniques, shows how to interpret the noise measurements, and finally discusses semiconductor mode-locked laser cavity optimizations that can achieve low noise performance.