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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 4 — Feb. 19, 2007
  • pp: 1467–1473

Phase-shift-keying and on-off-keying with improved performances using electroabsorption modulators with interferometric effects

Inuk Kang  »View Author Affiliations

Optics Express, Vol. 15, Issue 4, pp. 1467-1473 (2007)

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We present methods of optical modulation employing electroabsorption in an interferometric structure. The interferometric operation enables electroabsorption modulators for phase-shift keying and allows generation of on-off-keying signals with much improved extinction ratios. We demonstrate 40-Gb/s phase-shift-keying modulation, and up to 8.7 dB improvement in extinction ratio in 40-Gb/s on-off-keying modulation with 0.8V driving voltage using a commercial electroabsorption modulator. Methods of applying electroabsorption modulators for high spectral-efficiency formats generation are also proposed.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
(250.3140) Optoelectronics : Integrated optoelectronic circuits

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 28, 2006
Revised Manuscript: January 22, 2007
Manuscript Accepted: January 28, 2007
Published: February 19, 2007

Inuk Kang, "Phase-shift-keying and on-off-keying with improved performances using electroabsorption modulators with interferometric effects," Opt. Express 15, 1467-1473 (2007)

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