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

Amir Capua; Ouri Karni; Gadi Eisenstein; Johann Peter Reithmaier; Kresten Yvind

doi:10.1364/OE.20.005987

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

Amir Capua^*, Ouri Karni, Gadi Eisenstein, Johann Peter Reithmaier, Kresten Yvind

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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).

Original language	English
Pages (from-to)	5987-5992
Number of pages	6
Journal	Optics Express
Volume	20
Issue number	6
DOIs	https://doi.org/10.1364/OE.20.005987
State	Published - 12 Mar 2012
Externally published	Yes

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abstract = "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).",

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AU - Yvind, Kresten

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AB - 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).

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

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