NATIONAL
INSTITUTE for LASER, PLASMA and RADIATION PHYSICS LABORATORY of SOLID-STATE QUANTUM ELECTRONICS |
|
Proiect Bilateral ROMANIA - BULGARIA
2010-2012
Bilateral Project ROMANIA - BULGARIA
2010-2012
PN II, Programul
CAPACITATI, Modul III
DirectorI de Proiect:
- Dr. Traian DASCALU (partenerul
din Romana PROJECT
MANAGERS:
- Dr. Traian DASCALU (from
Romania), traian.dascalu@inflpr.ro DURATA
PROIECTULUI:
01.10.2010
- 30.09.2012 CONDUCATOR PROIECT:
- INSTITUTUL NATIONAL DE
CERCETARE-DEZVOLTARE
PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI INFLPR DIN BUCURESTI,
- SOFIA
UNIVERSITY
"St. KLIMENT OHRIDSKI, Physics Department, 5
James
Bourchier Blvd.,1164
Sofia, BULGARIA OBIECTIVUL PROIECTULUI December 2010: The main goal was to plan the future experiments, choosing the laser and the nonlinear media. Ceramic materials like Nd:YAG and Cr:YAG were considered as possible laser media for the oscillator system. The ray tracing method was used to study the pump radiation distribution and to determine the temperature gradients in the laser media. December 2011: The goal was to build a compact and reliable, passively Q-switched microchip laser, with the role of seeder for the MOPA amplification stage. We have measured the laser pulse energy for different Nd doping concentrations, and the optimal value was of 0.75 mJ for the 1.1-at.% Nd:YAG ceramic. The beam quality factor was M2= 1.62. Laser pulses with 7.6 mJ energy have been obtained amplifying the 0.75 mJ pulses with a one-pass MOPA amplifier. The oscillator-amplifier system was used to pump the optical parametric oscillator for the spectral range 2 - 4 µm. ● Papers 1. G. Salamu, A. Ionescu, C. A. Brandus, O. Sandu, N. Pavel, and T. Dascalu, “High-Peak Power, Passively Q-switched, Composite, All-Poly-Crystalline Ceramics Nd:YAG/Cr4+:YAG Laser and Generation of 532-nm Green Light,” Laser Physics 22 (1), 68-73 (2012). 2. O. Sandu, G. Salamu, N. Pavel, T. Dascalu, D. Chuchumishev, A. Gaydardzhiev, I. Buchvarov, ”High-peak power, passively Q-switched, composite, all-poly-crystalline ceramics Nd:YAG/Cr4+:YAG lasers," Quantum Electronics 42 (3), 211-215 (2012). ● Conferences 1. D. Chuchumishev, I. Buchvarov, A. Gaydardzhiev, A. Trifonov, O. Sandu, and G. Salamu, “Sub-nanosecond, tunable between 3 μm and 3.5 μm OPO based on PPSLT, pumped by 0.5 kHz Nd:YAG laser,” International Student Workshop on Laser Applications ISWLA 2011, 31 May 31 - 04 June, 2011, Bran, Romania 2. G. Salamu, O. Sandu, N. Pavel, T. Dascalu, D. Chuchumishev, A. Gaydardzhiev, and I Buchvarov, “Passively Q-switched, Composite, All-Poly-Crystalline Ceramics Nd:YAG/Cr4+:YAG Laser,” 19th International Conference on Advanced Laser Technologies, 03 - 08 September 2011, Golden Sands, Bulgaria; in Book of Abstract, presentation O-6-LN, page 92. |
Laboratory of Solid-State Quantum Electronics |