International Display Workshops General Incorporated Association

11:40 〜 12:00

[PRJ5-4] Laser Excited Single Crystal Phosphor Waveguide for High Power Applications

Yung Peng Chang2, Kirk Huang2, Lion Wang2, *Kenneth Li1 (1. Optonomous Technologies Inc.(United States of America), 2. Taiwan Color Optics, Inc.(Taiwan))

laser, crystal phosphor, projection, high-power, waveguide

https://doi.org/10.36463/idw.2020.0676

Single crystal phosphor has been developed with superior material performance for conversion of blue laser light into yellow visible light providing high efficiency, high temperature operation, and operation in a larger volume waveguide form for ease of heat sinking. This paper presents an end-pumped structured crystal phosphor waveguide design such that the volume of laser absorption and heat dissipating surfaces are both larger with a small output cross-section for small etendue operations. Preliminary samples have been fabricated with expected results. Several structures and measurement results will be presented.