TY - JOUR
T1 - Low Etendue Yellow-Green Solid-State Light Generation by Laser-Pumped LuAG:Ce Ceramic
AU - Li, Kang
AU - Shi, Yun
AU - Jia, Fuqiang
AU - Price, Chris
AU - Gong, Yongkang
AU - Huang, Jungang
AU - Copner, Nigel
AU - Cao, Hui
AU - Yang, Lingzhen
AU - Chen, Shuo
AU - Chen, Haohong
AU - Li, Jiang
N1 - Funding Information:
Manuscript received January 23, 2018; revised February 28, 2018; accepted March 6, 2018. Date of publication March 12, 2018; date of current version April 27, 2018. This work was supported in part by the 2015 Foshan Technology Innovation Group Project (Advanced Solid-State Light Source Application and Innovation Team), in part by the National Natural Science Foundation of China under Grant 61475175 and Grant 6141130132, in part by the Natural Science Foundation of Guangdong Province, China, under Grant 2015A030313633, in part by the Key Project of Education Department of Guangdong Province under Grant 2014KTSCX153, and in part by the Fundamental Research Funds of Foshan University under Grant 2014042. (Corresponding authors: Kang Li, Yun Shi, and Fuqiang Jia.) K. Li, Y. Gong, J. Huang, and N. Copner are with the Faculty of Computing, Engineering and Science, University of South Wales at Cardiff, Cardiff CF37 1DL, U.K., and also with Foshan Luxmate Optoelectronics Ltd., Foshan 528315, China (e-mail: [email protected]).
Publisher Copyright:
© 2018 IEEE.
PY - 2018/5/15
Y1 - 2018/5/15
N2 - A low Etendue (6.1 mm2) yellow-green solid-state light source with optical conversion efficiency up to 101.3 lumen/Watt is demonstrated by through high-power laser diode pumping of a static LuAG:Ce transparent ceramic plate. A 443-nm blue laser diode array with a full-width-half-maximum (FWHM) of <1.5 nm and a maximum output power of 15.2 W is used to attain a high spectral absorption efficiency. The output from the high-power laser diode array is collimated, shaped, despeckled, and focused to display a Gaussian-like profile with a 1.5-mm beam waist (1/e2 radius) to stimulate a 1.2-mm thick LuAG:Ce transparent ceramic plate with an emission FWHM spectra at 505-585 nm. No thermal quenching, pump absorption saturation, and obvious luminous flux decrease is found during test.
AB - A low Etendue (6.1 mm2) yellow-green solid-state light source with optical conversion efficiency up to 101.3 lumen/Watt is demonstrated by through high-power laser diode pumping of a static LuAG:Ce transparent ceramic plate. A 443-nm blue laser diode array with a full-width-half-maximum (FWHM) of <1.5 nm and a maximum output power of 15.2 W is used to attain a high spectral absorption efficiency. The output from the high-power laser diode array is collimated, shaped, despeckled, and focused to display a Gaussian-like profile with a 1.5-mm beam waist (1/e2 radius) to stimulate a 1.2-mm thick LuAG:Ce transparent ceramic plate with an emission FWHM spectra at 505-585 nm. No thermal quenching, pump absorption saturation, and obvious luminous flux decrease is found during test.
KW - diode laser
KW - Light sources
KW - optical pumping
KW - phosphor ceramic
KW - photoluminescence
UR - http://www.scopus.com/inward/record.url?scp=85043470172&partnerID=8YFLogxK
U2 - 10.1109/LPT.2018.2813520
DO - 10.1109/LPT.2018.2813520
M3 - Article
AN - SCOPUS:85043470172
SN - 1041-1135
VL - 30
SP - 939
EP - 942
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 10
ER -