20 September 2004 New class of cw high-power diode-pumped alkali lasers (DPALs) (Plenary Paper)
Author Affiliations +
Proceedings Volume 5448, High-Power Laser Ablation V; (2004) https://doi.org/10.1117/12.547954
Event: High-Power Laser Ablation, 2004, Taos, New Mexico, United States
Abstract
The new class of diode-pumped alkali vapor lasers (DPALs) offers high efficiency cw laser radiation at near-infrared wavelengths: cesium 895 nm, rubidium 795 nm, and potassium 770 nm. The working physical principles of DPALs will be presented. Initial 795 nm Rb and 895 nm Cs laser experiments performed using a titanium sapphire laser as a surrogate pump source demonstrated DPAL slope power conversion efficiencies in the 50-70% range, in excellent agreement with device models utilizing only literature spectroscopic and kinetic data. Using these benchmarked models for Rb and Cs, optimized DPALs with optical-optical efficiencies >60%, and electrical efficiencies of 25-30% are projected. DPAL device architectures for near-diffraction-limited power scaling into the high kilowatt power regime from a single aperture will be described. DPAL wavelengths of operation offer ideal matches to silicon and gallium arsenide based photovoltaic power conversion cells for efficient power beaming.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William F. Krupke, Raymond J. Beach, Vernon K. Kanz, Stephen A. Payne, James T. Early, "New class of cw high-power diode-pumped alkali lasers (DPALs) (Plenary Paper)", Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.547954; https://doi.org/10.1117/12.547954
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

Reviews of a Diode Pumped Alkali Laser (DPAL) a...
Proceedings of SPIE (March 04 2015)
Diode pumped alkali lasers (DPALs): an overview
Proceedings of SPIE (May 14 2008)
DPAL a new class of CW near infrared high...
Proceedings of SPIE (May 11 2004)
Diode-pumped alkali laser-bleached wave dynamics
Proceedings of SPIE (November 08 2012)
Diode-pumped alkali vapor lasers for high power applications
Proceedings of SPIE (February 21 2008)

Back to Top