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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 12 — Jun. 8, 2009
  • pp: 9680–9687

A photonic ultra-wideband pulse generator based on relaxation oscillations of a semiconductor laser

Xianbin Yu, Timothy Braidwood Gibbon, Michal Pawlik, Søren Blaaberg, and Idelfonso Tafur Monroy  »View Author Affiliations

Optics Express, Vol. 17, Issue 12, pp. 9680-9687 (2009)

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A photonic ultra-wideband (UWB) pulse generator based on relaxation oscillations of a semiconductor laser is proposed and experimentally demonstrated. We numerically simulate the modulation response of a direct modulation laser (DML) and show that due to the relaxation oscillations of the laser, the generated signals with complex shape in time domain match the Federal Communications Commission (FCC) mask in the frequency domain. Experimental results using a DML agree well with simulation predictions. Furthermore, we also experimentally demonstrate the generation of FCC compliant UWB signals by externally injecting a distributed feedback (DFB) laser.

© 2009 Optical Society of America

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(320.5550) Ultrafast optics : Pulses
(250.4745) Optoelectronics : Optical processing devices
(060.5625) Fiber optics and optical communications : Radio frequency photonics
(250.5960) Optoelectronics : Semiconductor lasers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 25, 2009
Revised Manuscript: May 13, 2009
Manuscript Accepted: May 17, 2009
Published: May 26, 2009

Xianbin Yu, Timothy Braidwood Gibbon, Michal Pawlik, Søren Blaaberg, and Idelfonso Tafur Monroy, "A photonic ultra-wideband pulse generator based on relaxation oscillations of a semiconductor laser," Opt. Express 17, 9680-9687 (2009)

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