Laser-excited phosphor light recycling using parabolic reflectors

Kenneth Li

doi:10.1117/12.2542244

25 February 2020 Laser-excited phosphor light recycling using parabolic reflectors

Kenneth Li

Proceedings Volume 11302, Light-Emitting Devices, Materials, and Applications XXIV; 113021S (2020) https://doi.org/10.1117/12.2542244
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

This paper describes a patent pending system in which the configuration, utilizing a single parabolic reflector, could allow high power reflective phosphor mode of operation, accommodate multiple laser diodes, and recycles the high angle light for increased output with low NA. In addition, the reflective phosphor and the laser diodes are both mounted on the same heat sink allowing a simple light module design with low cost. The parabolic reflector functions as the coupling optics between the laser diodes and the phosphor plate and as part of the recycling optics. With an addition of another parabolic reflector, the system produces a focused output suitable for coupling light into a fiber optic or cable. Other related recycling systems are also described, which will be useful for various applications with different requirements.

Conference Presentation

Citation Download Citation

Kenneth Li "Laser-excited phosphor light recycling using parabolic reflectors", Proc. SPIE 11302, Light-Emitting Devices, Materials, and Applications XXIV, 113021S (25 February 2020); https://doi.org/10.1117/12.2542244

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