Efficiency and threshold pump intensity of CW solar-pumped solid-state lasers

Journal Article · Sun Sep 01 00:00:00 EDT 1991 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.135171· OSTI ID:5761482

Hwang, I H ^[1]; Lee, J H ^[2]

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1. Hampton Univ., VA (United States). Dept. of Physics
2. National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center

This paper reports on the efficiencies and threshold pump intensities of various solid-state laser materials that have been estimated to compare their performance characteristics as direct solar-pumped CW lasers. Among the laser materials evaluated in this research, alexandrite has the highest slope efficiency of about 12.6%; however, it does not seem to be practical for solar-pumped laser application because of its high threshold pump intensity. Cr:Nd:GSGG is the most promising for solar-pumped lasing. Its threshold pump intensity is about 100 air-mass-zero (AMO) solar constants and its slope efficiency is about 12% when thermal deformation is completely prevented.

• Sponsoring Organization: National Aeronautic and Space Administration (NASA); National Aeronautics and Space Administration, Washington, DC (United States)
• OSTI ID: 5761482
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:9; ISSN 0018-9197
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER MATERIALS
EFFICIENCY
SOLID STATE LASERS
ALUMINATES
AMPLITUDES
BERYLLIUM COMPOUNDS
CHROMIUM ADDITIONS
COMPARATIVE EVALUATIONS
NEODYMIUM ADDITIONS
PERFORMANCE
SOLAR RADIATION
THRESHOLD ENERGY
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
CHROMIUM ALLOYS
ENERGY
EVALUATION
LASERS
MATERIALS
NEODYMIUM ALLOYS
OXYGEN COMPOUNDS
RADIATIONS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
STELLAR RADIATION
426002* - Engineering- Lasers & Masers- (1990-)