Crynodeb
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 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.
Iaith wreiddiol | Saesneg |
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Tudalennau (o-i) | 939-942 |
Cyfnodolyn | IEEE Photonics Technology Letters |
Cyfrol | 30 |
Rhif cyhoeddi | 10 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 15 Mai 2018 |