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- Title
Possibility of Pumping Lasers on Alexandrite and Ti:Sapphire Leds Emitting in the Range of 440–510 nm.
- Authors
Aladov, A. V.; Zakgeim, A. L.; Ivanov, A. E.; Chernyakov, A. E.
- Abstract
The energy and spectral characteristics of the most powerful AlInGaN LEDs with emission spectrum peaks at wavelengths of 440, 470, and 510 nm were studied in relation to the pumping of two laser media: Ti:Sapphire (Ti:Al2O3) and alexandrite (Cr:Al2BeO4). The absorption coefficients of the LED radiation in the laser media were studied experimentally with respect to the peak wavelength, operating mode, and excitation level. The corresponding spectral matching values (the efficiency of absorption of the pump radiation) were calculated for various combinations of the LEDs and active laser media. The energy characteristics (radiation power, pulse energy) of the LED emitters were studied over a wide range of excitation levels. The maximum energy capabilities of the LED emitters were assessed in terms of both output optical power and efficiency. The optimum combinations of LEDs and active laser media to achieve laser generation were determined.
- Subjects
LASER pumping; ACTIVE medium; RADIATION absorption; LASER beams; ABSORPTION coefficients
- Publication
Journal of Applied Spectroscopy, 2024, Vol 91, Issue 2, p286
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-024-01719-7