Low chirp operation of 40 Gbit/s electroabsorption modulator integrated DFB laser module with low driving voltage

Hideki Fukano, Yuichi Akage, Yoshihiro Kawaguchi, Yasumasa Suzaki, Kenji Kishi, Takayuki Yamanaka, Yasuhiro Kondo, Hiroshi Yasaka

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We clarified experimentally that an EA-DFB laser in which the EAM and DFB parts are coupled with a passive waveguide provides a large bandwidth, even when a large reverse bias is applied to the EAM. This allows the chip to operate in a negative-chirp condition. We fabricated an EA-DFB module terminated with a 50 Ω resistor through a dc-block capacitor to suppress the increase in dc current as the reverse bias increases. A module equipped with our new EA-DFB chip successfully transmitted data over a distance of 3 km at a rate of 40 Gbit/s and at a driving voltage as low as 2 V.

Original languageEnglish
Pages (from-to)1129-1134
Number of pages6
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume13
Issue number5
DOIs
Publication statusPublished - Sep 2007
Externally publishedYes

Fingerprint

Electroabsorption modulators
embedded atom method
Distributed feedback lasers
chirp
Resistors
low voltage
modulators
Waveguides
Capacitors
modules
chips
Bandwidth
Electric potential
resistors
lasers
capacitors
waveguides
bandwidth
electric potential

Keywords

  • DFB laser
  • Electroabsorption
  • Electroabsorption modulator (EAM)
  • Electroabsorption modulator integrated DFB laser (EA-DFB)
  • Low driving voltage

ASJC Scopus subject areas

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

Cite this

Low chirp operation of 40 Gbit/s electroabsorption modulator integrated DFB laser module with low driving voltage. / Fukano, Hideki; Akage, Yuichi; Kawaguchi, Yoshihiro; Suzaki, Yasumasa; Kishi, Kenji; Yamanaka, Takayuki; Kondo, Yasuhiro; Yasaka, Hiroshi.

In: IEEE Journal on Selected Topics in Quantum Electronics, Vol. 13, No. 5, 09.2007, p. 1129-1134.

Research output: Contribution to journalArticle

Fukano, Hideki ; Akage, Yuichi ; Kawaguchi, Yoshihiro ; Suzaki, Yasumasa ; Kishi, Kenji ; Yamanaka, Takayuki ; Kondo, Yasuhiro ; Yasaka, Hiroshi. / Low chirp operation of 40 Gbit/s electroabsorption modulator integrated DFB laser module with low driving voltage. In: IEEE Journal on Selected Topics in Quantum Electronics. 2007 ; Vol. 13, No. 5. pp. 1129-1134.
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