Multi-watt power blue light generation by intracavity sum- frequency-mixing in KTiOPO4 crystal

Zhu Haiyong; Zhang Ge; Huang Chenghui; Wei Yong; Huang Lingxiong; Chen Zhenqiang

doi:10.1364/oe.16.002989

Multi-watt power blue light generation by intracavity sum- frequency-mixing in KTiOPO4 crystal

Opt Express. 2008 Mar 3;16(5):2989-94. doi: 10.1364/oe.16.002989.

Authors

Zhu Haiyong¹, Zhang Ge, Huang Chenghui, Wei Yong, Huang Lingxiong, Chen Zhenqiang

Affiliation

¹ Fujian Institute of Research on Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.

PMID: 18542384
DOI: 10.1364/oe.16.002989

Abstract

In this paper, a high power blue laser at 447 nm was obtained by intracavity sum-frequency-mixing of a diode-side-pumped Q-switched Nd:YAlO(3)(Nd:YAP) laser operating at 1341.4 nm. A type-I critical phase matching LiB(3)O(5) (LBO) crystal and type-II critical phase matching KTiOPO(4) (KTP) crystal were used for second harmonic generation and third harmonic generation, respectively. The phase matching condition of the KTP crystal was researched. The results show that the KTP has superiority in intracavity sum-frequency-mixing blue light generation. 4.76 W blue light output was achieved at 4.6 kHz with the pulse width of 190ns. The fluctuation of output power was better than 3% at the output power of 4.76 W during half an hour.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Color
Equipment Design
Equipment Failure Analysis
Lasers, Solid-State*
Lighting / instrumentation*
Lighting / methods
Semiconductors*