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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 5987–5992

Extreme nonlinearities in InAs/InP nanowire gain media: the two-photon induced laser

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

Optics Express, Vol. 20, Issue 6, pp. 5987-5992 (2012)

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We demonstrate a novel laser oscillation scheme in an InAs / InP wire-like quantum dash gain medium. A short optical pulse excites carriers by two photon absorption which relax to the energy levels providing gain thereby enabling laser oscillations. The nonlinear dynamic interaction is analyzed and quantified using multi-color pump-probe measurements and shows a highly efficient nonlinear two photon excitation process which is larger by more than an order of magnitude compared to common quantum well and bulk gain media. The dynamic response of the nonlinearly induced laser line is characterized by spectrally resolved temporal response measurements, while changes incurring upon propagation in the stimulating short pulse itself are characterized by frequency resolved optical gating (FROG).

© 2012 OSA

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(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:
Lasers and Laser Optics

Original Manuscript: January 10, 2012
Revised Manuscript: February 9, 2012
Manuscript Accepted: February 9, 2012
Published: February 27, 2012

Amir Capua, Ouri Karni, Gadi Eisenstein, Johann Peter Reithmaier, and Kresten Yvind, "Extreme nonlinearities in InAs/InP nanowire gain media: the two-photon induced laser," Opt. Express 20, 5987-5992 (2012)

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