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

被引：8

作者：

Capua, Amir ^{[1
]}

Karni, Ouri ^{[1
]}

Eisenstein, Gadi ^{[1
]}

Reithmaier, Johann Peter ^{[2
]}

Yvind, Kresten ^{[3
]}

机构：

[1] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel

[2] Univ Kassel, Inst Nanostruct Technol & Analyt, D-34132 Kassel, Germany

[3] Tech Univ Denmark, Dept Photon Engn, DTU Fotonik, DK-2800 Lyngby, Denmark

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 06期

关键词：

10 GBIT/S DATA; OPTICAL AMPLIFIERS; QUANTUM; ABSORPTION; GENERATION; HARMONICS; CLUSTERS;

D O I：

10.1364/OE.20.005987

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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). (c) 2012 Optical Society of America

引用

页码：5987 / 5992

页数：6

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