Sub-four-cycle laser pulses directly from a high-repetition-rate optical parametric chirped-pulse amplifier at 3.4 μm

被引：64

作者：

Mayer, B. W. ^{[1
]}

Phillips, C. R. ^{[1
,2
]}

Gallmann, L. ^{[1
]}

Fejer, M. M. ^{[2
]}

Keller, U. ^{[1
]}

机构：

[1] ETH, Inst Quantum Elect, Dept Phys, CH-8093 Zurich, Switzerland

[2] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA

来源：

OPTICS LETTERS | 2013年 / 38卷 / 21期

基金：

瑞士国家科学基金会;

关键词：

QUASI-PHASEMATCHING GRATINGS; CYCLE MIDINFRARED PULSES; GENERATION; APODIZATION; 2.1-MU-M; DESIGN; POWER;

D O I：

10.1364/OL.38.004265

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We generate sub-four-cycle pulses (41.6 fs) with 12 mu J of pulse energy in the mid-infrared spectral range (center wavelength 3.4 mu m) from a high-repetition-rate, collinear three-stage optical parametric chirped-pulse amplifier (OPCPA) operating at 50 kHz. Apodized aperiodically poled MgO:LiNbO3 crystals with a negative chirp rate are employed as gain media to achieve ultrabroadband phase-matching while minimizing optical parametric generation. The seed pulses are obtained via a 1.56 mu m femtosecond fiber laser, which is spectrally broadened in a dispersion-shifted telecom fiber to support 1000 nm bandwidth idler pulses in the mid-infrared. (C) 2013 Optical Society of America

引用

页码：4265 / 4268

页数：4

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