Generation of 45 femtosecond pulses at 3 μm with a KNbO3 optical parametric amplifier

被引：49

作者：

Fecko, CJ

Loparo, JJ

Tokmakoff, A

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

[2] MIT, George R Harrison Spect Lab, Cambridge, MA 02139 USA

来源：

OPTICS COMMUNICATIONS | 2004年 / 241卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.optcom.2004.07.038

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the design and characterization of a two-stage Ti:sapphire-pumped optical parametric amplifier based on BBO and KNbO3. After compression, the pulses are 45 fs in duration with 400 cm(-1) of bandwidth in the 3 mum wavelength range which is important for spectroscopy of hydride stretching vibrations. We discuss the choice of nonlinear crystals for each stage, describe the compression of mid-infrared pulses using materials with normal and anomalous dispersion, and characterize the output after each stage of the OPA. (C) 2004 Elsevier B.V. All rights reserved.

引用

收藏

页码：521 / 528

页数：8

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