Frequency-doubled DBR-tapered diode laser for direct pumping of Ti:sapphire lasers generating sub-20 fs pulses

被引：29

作者：

Muller, Andre ^{[1
]}

Jensen, Ole Bjarlin ^{[1
]}

Unterhuber, Angelika ^{[2
]}

Le, Tuan ^{[2
]}

Stingl, Andreas ^{[2
]}

Hasler, Karl-Heinz ^{[3
]}

Sumpf, Bernd ^{[3
]}

Erbert, Goetz ^{[3
]}

Andersen, Peter E. ^{[1
]}

Petersen, Paul Michael ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Photon Engn, DK-4000 Roskilde, Denmark

[2] Femtolasers Prod GmbH, A-1100 Vienna, Austria

[3] Leibniz Inst Hochstfrequenztech, Ferdinand Braun Inst, D-12489 Berlin, Germany

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 13期

关键词：

OPTICAL COHERENCE TOMOGRAPHY; TI-SAPPHIRE LASER; REPETITION RATE; GREEN LASER; HIGH-POWER; NM; EFFICIENCY; TI-AL2O3; BARS;

D O I：

10.1364/OE.19.012156

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For the first time a single-pass frequency doubled DBR-tapered diode laser suitable for pumping Ti:sapphire lasers generating ultrashort pulses is demonstrated. The maximum output powers achieved when pumping the Ti: sapphire laser are 110 mW (CW) and 82 mW (mode-locked) respectively at 1.2 W of pump power. This corresponds to a reduction in optical conversion efficiencies to 75% of the values achieved with a commercial diode pumped solid-state laser. However, the superior electro-optical efficiency of the diode laser improves the overall efficiency of the Ti: sapphire laser by a factor > 2. The optical spectrum emitted by the Ti: sapphire laser when pumped with our diode laser shows a spectral width of 112 nm (FWHM). Based on autocorrelation measurements, pulse widths of less than 20 fs can therefore be expected. (C) 2011 Optical Society of America

引用

页码：12156 / 12163

页数：8

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