[PDF]    http://dx.doi.org/10.3952/lithjphys.51205

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 51, 137–142 (2011)

MULTIBEAM PUMPING OF OPA BY RADIATION OF FIBRE AMPLIFIERS
D. Kezys, M. Gecevičius, A. Piskarskas, V. Pyragaitė, V. Smilgevičius, and A. Stabinis
Laser Research Centre, Vilnius University, Saulėtekio 10, LT-10222 Vilnius, Lithuania
E-mail: valerijus.smilgevicius@ff.vu.lt

Received 22 March 2011; revised 2 June 2011; accepted 21 June 2011

The results of effective optical parametric amplification in KTP crystal pumped by three beams delivered by fibre amplifiers are presented. The second harmonic of three 1.2 ns and 200 μJ pulses each extracted from fibre amplifier have been used to pump optical parametric amplifier (OPA) simultaneously. The conversion efficiency of pump radiation into a signal beam was close to 25%.
Keywords: nonlinear optics, fibres, erbium, parametric oscillators and amplifiers
PACS: 42.65.-k, 42.55.Wd, 42.65.Yj


DAUGIAPLUOŠTIS OPTINIO PARAMETRINIO STIPRINTUVO KAUPINIMAS ŠVIESOLAIDINIŲ STIPRINTUVŲ SPINDULIUOTE
D. Kezys, M. Gecevičius, A. Piskarskas, V. Pyragaitė, V. Smilgevičius, A. Stabinis
Vilniaus universitetas, Vilnius, Lietuva

Pateikti efektyvaus optinio parametrinio stiprinimo KTP kristale, kaupinamo trimis sustiprintais šviesolaidiniuose stiprintuvuose pluoštais, tyrimo rezultatai. Vienalaikiam optinio parametrinio stiprintuvo kaupinimui buvo panaudota sustiprintų šviesolaidiniuose stiprintuvuose trijų 1,2 ns trukmės ir 200 μJ energijos impulsų antrosios harmonikos spinduliuotė. Kaupinimo spinduliuotės keitimo efektyvumas į signalinę bangą siekė ~25%.

References / Nuorodos

[1] A. Dubietis, G. Jonušauskas, and A. Piskarskas, Powerful femtosecond pulse generation by chirped and stretched pulse parametrical amplification in BBO crystal, Opt. Commun. 88(4–6), 437–440 (1992),
http://dx.doi.org/10.1016/0030-4018(92)90070-8
[2] E. Gaizhauskas, A. Piskarskas, V. Smilgyavichyus, and G. Shlekys, Parametric oscillation in LiNbO3 crystal in the presence of a photorefractive diffraction grating, Sov. J. Quantum Electron. 21(5), 577–578 (1991),
http://dx.doi.org/10.1070/QE1991v021n05ABEH003881
[3] V. Smilgevičius and A. Stabinis, Two-beam pumped travelling-wave optical parametric generator, Opt. Commun. 106(1–3), 69–74 (1994),
http://dx.doi.org/10.1016/0030-4018(94)90059-0
[4] A. Piskarskas, V. Smilgevicius, A. Stabinis, and V. Vaicaitis, Spatially cumulative phenomena and output patterns in optical parametric oscillators and generators pumped by conical beams, J. Opt. Soc. Am. B 16(9), 1566–1578 (1999),
http://dx.doi.org/10.1364/JOSAB.16.001566
[5] A. Dubietis, R. Danielius, G. Tamošauskas, and A. Piskarskas, Combining effect in a multiple-beam-pumped optical parametric amplifier, J. Opt. Soc. Am. B 15(3), 1135–1139 (1998),
http://dx.doi.org/10.1364/JOSAB.15.001135
[6] G. Tamošauskas, A. Dubietis, G. Valiulis, and A. Piskarskas, Optical parametric amplifier pumped by two mutually incoherent laser beams, Appl. Phys. B 91(2), 305–307 (2008),
http://dx.doi.org/10.1007/s00340-008-2984-8
[7] S. Ališauskas, R. Butkus, V. Pyragaite, V. Smilgevicius, A. Stabinis, and A. Piskarskas, Prospects for increasing average power of optical parametric chirped pulse amplifiers via multi-beam pumping, Opt. Commun. 283(3), 469–473 (2010),
http://dx.doi.org/10.1016/j.optcom.2009.10.029
[8] D. Herrmann, R. Tautz, F. Travella, F. Krausz, and L. Veisz, Investigation of two-beam-pumped noncollinear optical parametric chirped-pulse amplification for the generation of few-cycle light pulses, Opt. Express 18(5), 4170–4183 (2010),
http://dx.doi.org/10.1364/OE.18.004170
[9] T. Kurita, K. Sueda, K. Tsubakimoto, and N. Miyanaga, Experimental demonstration of spatially coherent beam combining using optical parametric amplification, Opt. Express 18(14), 14541–14546 (2010),
http://dx.doi.org/10.1364/OE.18.014541
[10] R. Danielius, P. Di Trapani, A. Dubietis, A. Piskarskas, D. Podenas, and G.P. Banfi, Self-diffraction through cascaded second-order frequency-mixing effects in Beta-barium borate, Opt. Lett. 18(8), 574–576 (1993),
http://dx.doi.org/10.1364/OL.18.000574
[11] C.D. Brooks and F. Di Teodoro, Multimegawatt peakpower, single-transverse-mode operation of a 100 μm core diameter, Yb-doped rodlike photonic crystal fiber amplifier, Appl. Phys. Lett. 89(11), 111–119 (2006),
http://dx.doi.org/10.1063/1.2348742
[12] G.T. Moore, C.A. Denman, and T.S. Ross, Using multiple mutually incoherent fiber lasers to pump a coherent signal beam in an optical parametric oscillator, IEEE J. Quantum Electron. 36(7), 828–834 (2000),
http://dx.doi.org/10.1109/3.848355
[13] D.N. Nikogosyan, Nonlinear Optical Crystals: A Complete Survey (Springer, 2005),
http://www.springer.com/physics/atomic%2C+molecular%2C+optical+%26+plasma+physics/book/978-0-387-22022-2?otherVersion=978-1-4419-1957-1
[14] A. Piskarskas, V. Smilgevičius, and J. Jasevičiūtė, Optimization of three-photon parametric excitation of light in the picosecond pulse range, Sov. Phys. Collect. 20(1), 66–74 (1980)
[15] R. Gadonas, A. Marcinkevičius, A. Piskarskas, V. Smilgevičius, and A. Stabinis, Travelling wave optical parametric generator pumped by a conical beam, Opt. Commun. 146(1–6), 253–256 (1998),
http://dx.doi.org/10.1016/S0030-4018(97)00559-2