Very high-speed light-source module up to 40 Gb/s containing an MQW electroabsorption modulator integrated with a DFB laser

Hiroaki Takeuchi, Ken Tsuzuki, Kenji Sato, Mitsuo Yamamoto, Yoshio Itaya, Akihide Sano, Mikio Yoneyama, Taiichi Otsuji

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

A very high-speed integrated light source up to 40 Gb/s has been developed. The integrated light source consists of an multiple-quantum-well (MQW) electroabsorption (EA) modulator and a distributed-feedback (DFB) laser. After optimizing the structure of the integrated modulator, the device is packaged in a compact module with a single-mode fiber (SMF). While the DFB laser is injected with a constant current, the integrated MQW electroabsorption modulator is driven with a 40-Gb/s electrical NRZ signal. A clearly-open eye diagram is observed in the modulated light from the modulator. Further, a receiver sensitivity of -27.2 dBm at 10-9 is experimentally confirmed in bit-error-rate (BER) performance. Highly resolved optical short pulse is also generated at a repetition rate of 40 GHz using the new light-source module.

Original languageEnglish
Pages (from-to)336-343
Number of pages8
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume3
Issue number2
DOIs
Publication statusPublished - 1997 Apr 1
Externally publishedYes

Keywords

  • Distributed-feedback laser
  • Electroabsorption modulator
  • Multiquantum well

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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