A novel ultra-bright high-luminance and compact light source based on phosphor converted laser for advanced modern optical systems

Olivier Philip; Irina Shestakova; Jan Kubat; Martin Pokorny; Martin Mazura; Stepan Novotny; Vojtech Miller

doi:10.1117/12.2663087

15 June 2023 A novel ultra-bright high-luminance and compact light source based on phosphor converted laser for advanced modern optical systems

Olivier Philip, Irina Shestakova, Jan Kubat, Martin Pokorny, Martin Mazura, Stepan Novotny, Vojtech Miller

Author Affiliations +

Proceedings Volume 12515, Laser Technology for Defense and Security XVIII; 1251505 (2023) https://doi.org/10.1117/12.2663087
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Crytur recently introduced MonaLIGHT, a novel ultrabright light source built on an integrated OSARAM 5W laser diode pumping a single crystal phosphor element in a transmission configuration. The module can produce a luminous flux of 1200 lm and luminous intensity of 8000 cd, unattainable with existing LED technology. This new fit-for-purpose light source (Modular Narrow Angle Light) is characterized by a very low étendue <0.2mm².sr and brings high system efficiency in a very compact and energy efficient package. The phosphor is an optical element of the system which can produce excellent beam characteristics with a viewing angle as low as 4 degrees without the use of secondary optics. The internal quantum efficiency (QE) of the phosphor is 0.96 and external QE is greater than 0.55. The non-coherent emission spectrum is broad and continuous from 500 to 700 nm with no speckle pattern with applications in head up displays, micro projectors, navigation and instrument lighting, dazzlers, endoscopy, microscopy, and optical communications.

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Olivier Philip, Irina Shestakova, Jan Kubat, Martin Pokorny, Martin Mazura, Stepan Novotny, and Vojtech Miller "A novel ultra-bright high-luminance and compact light source based on phosphor converted laser for advanced modern optical systems", Proc. SPIE 12515, Laser Technology for Defense and Security XVIII, 1251505 (15 June 2023); https://doi.org/10.1117/12.2663087

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