Continuous wave and tunable laser operation of Yb3+ in disordered NaLa(MoO4)2
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Continuous-wave Yb3+ laser operation is studied in single crystals of disordered NaLa(MoO4)2 at room temperature. The sample used was grown by the Czochralski technique and incorporates an Yb ion density of 3.1×1020 cm-3. The effect of the Yb concentration on some of the crystal properties is described as well as the spectroscopic Yb3+ properties at 5 K. Maximum slope efficiencies of about 40% for π and 38% for σ polarization were obtained under Ti:sapphire laser pumping near 976 nm, respectively. The maximum output power for the π polarization was 400 mW at 1039.5 nm, the threshold in this case amounted to 240 mW (absorbed pump power). The laser emission was tunable between 1016 and 1064 nm with a Lyot filter. Lasing was also realized by pumping with a fiber-coupled diode laser module. Maximum output power of 900 mW at 1035 nm was achieved in this case for the π polarization and the threshold was 280 mW. The results, in terms of output power and tunability, are superior in comparison to all previous reports on Yb-doped disordered double tungstate or molybdate crystals and represent a significant improvement in comparison to earlier experiments with low-doped Yb:NaLa(MoO4)2.
KeywordsPump Power Molybdate Maximum Output Power Laser Operation Laser Emission
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- 2.J. Liu, J.M. Cano-Torres, C. Cascales, F. Esteban-Betegón, M.D. Serrano, V. Volkov, C. Zaldo, M. Rico, U. Griebner, V. Petrov: Phys. Status Solidi A 202, R29 (2005)Google Scholar
- 3.A.S. Yasukevich, A.V. Mandrik, V.E. Kisel, V.G. Shcherbitsky, G.N. Klavsut, N.V. Kuleshov, A.A. Pavlyuk: Adv. Solid-State Photon. Feb. 6–9 (2005), Vienna, Austria, Technical Digest (CD ROM), Paper MB6Google Scholar
- 4.J. Johannsen, M. Mond, K. Petermann, G. Huber, L. Ackermann, D. Rytz, C. Dupre: Adv. Solid-State Photon. Feb. 6–9 (2005), Vienna, Austria, Technical Digest (CD ROM), Paper MB44Google Scholar
- 5.J. Liu, J.M. Cano-Torres, F. Esteban-Betegón, M.D. Serrano, C. Cascales, C. Zaldo, M. Rico, U. Griebner, V. Petrov: Opt. Laser Technol. (2005) submittedGoogle Scholar
- 6.A.M. Morozov, M.N. Tolstoi, P.P. Feofilov, V.N. Shapovalov: Opt. Spectrosc. 22, 224 (1967) (Transl. of Opt. Spektrosk. 22, 414 (1967))Google Scholar
- 7.G.M. Zverev, G.Y. Kolodny: Sov. Phys. JETP 25, 217 (1967) (Transl. of Zh. Eksp. Teor. Fiz. 52, 337 (1967))Google Scholar
- 8.A.A. Kaminskii, S.E. Sarkisov: Sov. J. Quantum Electron. 3, 248 (1973) (Transl. of Kvantovaya Elektron. (Moscow) No. 3(15), 106 (1973))Google Scholar
- 11.J. Viscakas, V. Syrusas: Sov. Phys. – Collection 27, 31 (1987) (Transl. of Litovskii Fiz. Sbornik 27, 547 (1987))Google Scholar
- 14.T. Roisnel, J. Rodríguez-Carvajal: WinPLOTR. http://www-llb.cea.fr/fullweb/winplotr/winplotr.htmGoogle Scholar