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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 1 — Jan. 2, 2012
  • pp: 347–353

Complex characterization of short-pulse propagation through InAs/InP quantum-dash optical amplifiers: from the quasi-linear to the two-photon-dominated regime

Amir Capua, Abigael Saal, Ouri Karni, Gadi Eisenstein, Johann Peter Reithmaier, and Kresten Yvind  »View Author Affiliations

Optics Express, Vol. 20, Issue 1, pp. 347-353 (2012)

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We describe direct measurements at a high temporal resolution of the changes experienced by the phase and amplitude of an ultra-short pulse upon propagation through an inhomogenously broadened semiconductor nanostructured optical gain medium. Using a cross frequency-resolved optical gating technique, we analyze 150 fs-wide pulses propagating along an InP based quantum dash optical amplifier in both the quasi-linear and saturated regimes. For very large electrical and optical excitations, a second, trailing peak is generated and enhanced by a unique two-photon-induced amplification process.

© 2011 OSA

OCIS Codes
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(320.0320) Ultrafast optics : Ultrafast optics
(320.2250) Ultrafast optics : Femtosecond phenomena
(250.4390) Optoelectronics : Nonlinear optics, integrated optics
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Ultrafast Optics

Original Manuscript: October 18, 2011
Revised Manuscript: November 20, 2011
Manuscript Accepted: November 23, 2011
Published: December 21, 2011

Amir Capua, Abigael Saal, Ouri Karni, Gadi Eisenstein, Johann Peter Reithmaier, and Kresten Yvind, "Complex characterization of short-pulse propagation through InAs/InP quantum-dash optical amplifiers: from the quasi-linear to the two-photon-dominated regime," Opt. Express 20, 347-353 (2012)

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