Design criteria for mode size optimization in diode-pumped solid-state lasers

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.97276· OSTI ID:5761446

Laporta, P ^[1]; Brussard, M ^[2]

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1. Centro di Elettronica Quantistica e Strumentazione Elettronica del CNR, Dept. di Fisica del Politecnico, 20133 Milano (IT)
2. Dept. di Ingegneria Elettronica, Univ. di Roma, Tor Vergata, 00173 Roma (IT)

In this paper based on space-dependent rate equation analysis, design and optimization criteria for the mode size of diode-pumped solid-state lasers are proposed, assuming TEM{sub oo} single transverse mode in the resonator and circular or elliptic Gaussian pump beam. The optimum ratio between mode and pump spot size increases with input power and ellipticity of the pump beam. Simple plots may be used as useful guidelines to determine, besides the optimum spot size, the corresponding laser threshold, slope efficiency, and expected output power. Experimental examples are given for an end-pumped Nd:YAG laser, showing a good agreement with the design predictions.

• OSTI ID: 5761446
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:10; ISSN 0018-9197; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
CONFIGURATION
DESIGN
DIODE TUBES
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ELLIPTICAL CONFIGURATION
EQUIPMENT
FUNCTIONS
GAUSS FUNCTION
LASERS
NEODYMIUM LASERS
OPTIMIZATION
POWER
RESONATORS
SIZE
SOLID STATE LASERS
THERMIONIC DIODES
THERMIONIC TUBES
USES