Highly efficient continuous wave blue second-harmonic generation in fs-laser written periodically poled Rb:KTiOPO4 waveguides

被引：17

作者：

Mueller, Sebastian ^{[1
]}

Calmano, Thomas ^{[1
]}

Metz, Philip W. ^{[1
]}

Kraenkel, Christian ^{[1
,2
]}

Canalias, Carlota ^{[3
]}

Liljestrand, Charlotte ^{[3
]}

Laurell, Fredrik ^{[3
]}

Huber, Guenter ^{[1
,2
]}

机构：

[1] Univ Hamburg, Inst Laser Phys, D-22761 Hamburg, Germany

[2] Hamburg Ctr Ultrafast Imaging, D-22761 Hamburg, Germany

[3] KTH, Dept Appl Phys, S-10691 Stockholm, Sweden

来源：

OPTICS LETTERS | 2014年 / 39卷 / 05期

基金：

瑞典研究理事会;

关键词：

FEMTOSECOND-LASER; INDUCED BREAKDOWN; SLOPE EFFICIENCY; DIODE-LASER; KTP; LIGHT; KTIOPO4; POWER; CRYSTAL;

D O I：

10.1364/OL.39.001274

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Waveguides were inscribed into a 9.5 mm long periodically poled KTiOPO4 crystal with a Ti:sapphire femtosecond-laser. Waveguiding was achieved between two parallel written tracks with spacings of 17-19 mu m. The fundamental power of 1.6 W for frequency doubling in the waveguide was delivered by a continuous wave Ti:sapphire laser at a wavelength of 943.18 nm. A maximum output power of 76 mW in the blue spectral region was achieved. This corresponds to a single pass normalized conversion efficiency of 4.6% W-1 cm(-2). (C) 2014 Optical Society of America

引用

页码：1274 / 1277

页数：4

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