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Photonics
Volume 12
Issue 8
10.3390/photonics12080750
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Burst-Mode Operation of End-Pumped, Passively Q-Switched (Er/Yb):Glass Lasers

by
Stephen R. Chinn
1,
Lew Goldberg
2 and
A. D. Hays
2,*
1
Fibertek Inc., Herndon, VA 20107, USA
2
U.S. Army DEVCOM C5ISR, Fort Belvoir, VA 22060, USA
*
Author to whom correspondence should be addressed.
Photonics 2025, 12(8), 750; https://doi.org/10.3390/photonics12080750
Submission received: 2 June 2025 / Revised: 24 June 2025 / Accepted: 17 July 2025 / Published: 25 July 2025
(This article belongs to the Special Issue Laser Technology and Applications)
Versions Notes

Abstract

We describe the output characteristics of a compact, passively Q-switched, diode-end-pumped (Er/Yb):Glass laser operating in a multi-pulse burst mode. Such operation enables much higher optical efficiency and larger output of total energy than possible with conventional solitary pulse emissions. The laser generated a 15-pulse burst of pulses at 1.5 μm with a combined energy of 5.8 mJ. Measurements of pulse energies, spatial mode characteristics, output beam divergence, and impact of thermal effects in the (Er/Yb):Glass are described. These results are compared to predictions of a numerical simulation using a finite-difference beam propagation method (FD-BPM) that incorporates thermal effects caused by distributed local heating in the glass. We show good agreement between the measured and simulated laser output characteristics.
Keywords: solid state lasers; ytterbium; erbium; (Er/Yb):Glass; Q-switching; passive Q-switch; FD-BPM; Co:Spinel; thermal lensing solid state lasers; ytterbium; erbium; (Er/Yb):Glass; Q-switching; passive Q-switch; FD-BPM; Co:Spinel; thermal lensing

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MDPI and ACS Style

Chinn, S.R.; Goldberg, L.; Hays, A.D. Burst-Mode Operation of End-Pumped, Passively Q-Switched (Er/Yb):Glass Lasers. Photonics 2025, 12, 750. https://doi.org/10.3390/photonics12080750

AMA Style

Chinn SR, Goldberg L, Hays AD. Burst-Mode Operation of End-Pumped, Passively Q-Switched (Er/Yb):Glass Lasers. Photonics. 2025; 12(8):750. https://doi.org/10.3390/photonics12080750

Chicago/Turabian Style

Chinn, Stephen R., Lew Goldberg, and A. D. Hays. 2025. "Burst-Mode Operation of End-Pumped, Passively Q-Switched (Er/Yb):Glass Lasers" Photonics 12, no. 8: 750. https://doi.org/10.3390/photonics12080750

APA Style

Chinn, S. R., Goldberg, L., & Hays, A. D. (2025). Burst-Mode Operation of End-Pumped, Passively Q-Switched (Er/Yb):Glass Lasers. Photonics, 12(8), 750. https://doi.org/10.3390/photonics12080750

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