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Proceedings Paper

Single frequency green nanosecond Nd:YAG microlaser-oscillator power-amplifier system
Author(s): R. Dabu; C. Blanaru; A. Stratan; O. Pacala; C. Fenic; L. Neagu; L. Rusen; D. Ursu; V. Tornari; Y. Orphanos
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Paper Abstract

A compact single-frequency nanosecond green laser oscillator-amplifier system was developed. The single longitudinal mode oscillator consists in a cavity-coupled acousto-optically Q-switched Nd:YAG microlaser emitting pulses of 50 μJ energy, 10 nanosecond duration at 1064 nm wavelength. The oscillator pulses were amplified at 1-10 Hz repetition rate in a two-pass Nd:YAG amplifier up to 28 mJ energy. Infrared amplified radiation was frequency doubled (532 nm) in a KTP crystal with as much as 50% conversion efficiency. The pulsed green laser, with more than 1.5 m coherence length, was used as light source for the holography unit in the sensor of a multi-task device for nondestructive diagnosis in art conservation procedures.

Paper Details

Date Published: 1 August 2007
PDF: 8 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 678508 (1 August 2007); doi: 10.1117/12.755498
Show Author Affiliations
R. Dabu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
C. Blanaru, National Institute for Lasers, Plasma and Radiation Physics (Romania)
A. Stratan, National Institute for Lasers, Plasma and Radiation Physics (Romania)
O. Pacala, National Institute for Lasers, Plasma and Radiation Physics (Romania)
C. Fenic, National Institute for Lasers, Plasma and Radiation Physics (Romania)
L. Neagu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
L. Rusen, National Institute for Lasers, Plasma and Radiation Physics (Romania)
D. Ursu, ProOptica (Romania)
V. Tornari, Foundation for Research and Technology, Institute of Electronic Structure and Laser (Greece)
Y. Orphanos, Foundation for Research and Technology, Institute of Electronic Structure and Laser (Greece)


Published in SPIE Proceedings Vol. 6785:
ROMOPTO 2006: Eighth Conference on Optics

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