On the super-Gaussian unstable resonator for high-gain short-pulse laser media

Journal Article · Sat May 01 00:00:00 EDT 1993 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.236157· OSTI ID:6462263

Perrone, M R ^[1]; Piegari, A; Scaglione, S ^[2]

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1. Dipartimento di Fisica, Via per Arnesano (Italy)
2. Laboratorio Film Sottili, ENEA Casaccia (Italy)

High-mode-volume high-energy (70 mJ) high-brightness (1.6 [times] 10[sup 14] W cm[sup [minus]2] Sr[sup [minus]1]) laser beams have been extracted from a high gain short-pulse XeCl laser with a super-Gaussian unstable resonator. These results are obtained by increasing the cavity magnification factor to 6.6 and the output mirror peak reflectivity to 78%. The output beam divergence is seen to decrease from an initial value of [approximately]0.2 mrad down to nearly diffraction limited after 6 ns for the short gain build-up time of the active medium.

• OSTI ID: 6462263
• 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. 29:5; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
EXCIMER LASERS
GAIN
GAS LASERS
LASER CAVITIES
LASER MATERIALS
LASER MIRRORS
LASER RADIATION
LASERS
MATERIALS
MIRRORS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PULSES
RADIATIONS
REFLECTIVITY
RESONATORS
SURFACE PROPERTIES