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This article is cited in 21 scientific papers (total in 21 papers)
Lasers
High-peak power, passively Q-switched, composite, all-polycrystalline ceramic Nd : YAG/Cr4+ : YAG lasers
O. Sandua, G. Salamua, N. Pavela, T. Dascalua, D. Chuchumishevb, A. Gaydardzhievb, I. Buchvarovb a Laboratory of Solid-State Quantum Electronics, National Institute for Laser, Plasma and Radiation Physics, Romania
b Department of Physics, Sofia University, Bulgaria
Abstract:
High-peak power, passively Q-switched, composite Nd : YAG/Cr4+ : YAG lasers consisting of all-polycrystalline bonded Nd : YAG and Cr4+ : YAG ceramics are developed, and two applications of such lasers are discussed. A 1.1-at. %-doped Nd : YAG/Cr4+ : YAG ceramic laser is fabricated, which is quasi-cw pumped by a diode laser in the Hz-range, delivering laser pulses of 2.5-mJ energy and 1.9-MW peak power. By frequency doubling the laser output in a LiB3O5 (LBO) nonlinear crystal at room temperature, 0.36-mJ, 0.3-MW green laser pulses with 27 % conversion efficiency are produced at 532 nm. Furthermore, a highly doped (1.5-at. %) Nd : YAG/Cr4+ : YAG ceramic laser operates successfully in the range of pulse repetition rates from 50 to 500 Hz, yielding 0.8-to-1.0 mJ pulses with a peak power around 1 MW. The laser output beam is amplified in a master-oscillator — power-amplifier (MOPA) system to generate laser pulses with 11-mJ energy at a 250-Hz repetition rate.
Keywords:
neodymium lasers, passive Q-switching, ceramic lasers, diode laser pumping.
Received: 04.10.2011
Citation:
O. Sandu, G. Salamu, N. Pavel, T. Dascalu, D. Chuchumishev, A. Gaydardzhiev, I. Buchvarov, “High-peak power, passively Q-switched, composite, all-polycrystalline ceramic Nd : YAG/Cr4+ : YAG lasers”, Kvantovaya Elektronika, 42:3 (2012), 211–215 [Quantum Electron., 42:3 (2012), 211–215]
Linking options:
https://www.mathnet.ru/eng/qe14745 https://www.mathnet.ru/eng/qe/v42/i3/p211
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Abstract page: | 414 | Full-text PDF : | 267 | References: | 35 | First page: | 3 |
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