Efficient generation of 509 nm light by sum-frequency mixing between two tapered diode lasers

被引：16

作者：

Tawfieq, Mahmoud ^{[1
]}

Jensen, Ole Bjarlin ^{[1
]}

Hansen, Anders Kragh ^{[1
]}

Sumpf, Bernd ^{[2
]}

Paschke, Katrin ^{[2
]}

Andersen, Peter E. ^{[1
]}

机构：

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

[2] Leibniz Inst Hochstfrequenztech, Ferdinand Braun Inst, D-12389 Berlin, Germany

来源：

OPTICS COMMUNICATIONS | 2015年 / 339卷

关键词：

Diode lasers; Sum frequency generation; Tapered lasers; Visible lasers; GREEN-LIGHT; COMPACT;

D O I：

10.1016/j.optcom.2014.11.078

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a concept for visible laser sources based on sum-frequency generation of beam combined tapered diode lasers. In this specific case, a 1.7 W sum-frequency generated green laser at 509 nm is obtained, by frequency adding of 6.17W from a 978 nm tapered diode laser with 8.06W from a 1063 nm tapered diode laser, inside a periodically poled MgO doped lithium niobate crystal. This corresponds to an optical to optical conversion efficiency of 12.1%. As an example of potential applications, the generated nearly diffraction-limited green light is used for pumping a Ti:sapphire laser, thus demonstrating good beam quality and power stability. The maximum output powers achieved when pumping the Ti:sapphire laser are 226 mW (CW) and 185 mW (mode-locked) at 1.7W green pump power. The optical spectrum emitted by the mode-locked Ti:sapphire laser shows a spectral width of about 54 nm (FWHM), indicating less than 20 fs pulse width. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：137 / 140

页数：4

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