Open AccessThermal performance in high power SHG characterized by phase-matched calorimetry
Author(s) -
Hwan Hong Lim,
Toshio Katagai,
Sunao Kurimura,
Takahiro Shimizu,
Keisuke Noguchi,
Noriaki Ohmae,
Norikatsu Mio,
Ichiro Shoji
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.022588
Subject(s) - materials science , calorimetry , optics , thermal , energy conversion efficiency , crystal (programming language) , optoelectronics , phase (matter) , aperture (computer memory) , saturation (graph theory) , chemistry , physics , mathematics , organic chemistry , combinatorics , meteorology , computer science , acoustics , thermodynamics , programming language
We proposed a method to determine device quality in heat removal. Temperature change depending on SH power was analyzed by fitting with a new model to characterize heat removal performance of SHG modules, named as phase-matched calorimetry (PMC). The thermal disposal performance of SHG devices was improved by combination of metal housing and reduced crystal aperture. With a tight aperture, we demonstrated a 19 W single-pass 532-nm SHG at a conversion efficiency of 26.5% in a 10-mm-long PPMgSLT crystal without saturation.