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The room-temperature polarized absorption and emission spectra of Yb doped mixed vanadates Yb0.005:Y0.298Gd0.697VO4, Yb0.007:Y0.407Gd0.586VO4, and Yb0.009:Y0.575Gd0.416VO4 have been studied. The results show that the strongest absorption and emission, occurring at wavelength of 985 nm, correspond to the π polarization, depending on the composition the maximum absorption cross section ranges from 4.8 to 8.5×10-20 cm2, with bandwidths of 9.5—9.9 nm, whereas the maximum stimulated emission cross section varies in the range of 5.8—10.3×10-20 cm2. Continuous-wave laser operation has been realized at room temperature with the mixed crystals through longitudinal pumping with a diode laser. It was found that the laser oscillation behavior differs significantly from one mixed crystal to another:in the case of T=2% (T is the output coupling of the resonator), the coexistence and switching of σ, π polarization states occur on reducing the pump power in the laser oscillation of Yb0.005:Y0.298Gd0.697VO4 and Yb0.009:Y0.575Gd0.416VO4, while the laser oscillation of Yb0.007:Y0.407Gd0.586VO4 is capable of maintaining its π polarization state. In the case of T=5%, however, the laser oscillation generated with Yb0.009:Y0.575Gd0.416VO4 is purely σ-polarized, whereas the laser behavior of Yb0.005:Y0.298Gd0.697VO4 is similar to that exhibited in the case of T=2%.
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Keywords:
- Yb doped mixed vanadates /
- absorption and emission spectra /
- laser oscillation /
- polarization state
[1] Petit J, Viana B, Goldner P, Vivien D, Louiseau P, Ferrand B 2004 Opt. Lett. 29 833
[2] Kisel V E, Troshin A E, Tolstik N A, Shcherbitsky V G, Kuleshov N V, Matrosov V N, Matrosova T A, Kupchenko M I 2004 Opt. Lett. 29 2491
[3] Liu J, Mateos X, Zhang H, Wang J, Jiang M, Griebner U, Petrov V 2005 Opt. Lett. 30 3162
[4] Cheng Y, Zhang H J, Yu Y G, Wang J Y, Tao X T, Liu J H, Petrov V, Ling Z C, Xia H R, Jiang M H 2007 Appl. Phys. B 86 681
[5] Liu J, Han W, Zhang H, Mateos X, Petrov V 2009 IEEE J. Quantum Electron. 45 807
[6] Liu J, Petrov V, Griebner U, Noack F, Zhang H, Wang J, Jiang M 2006 Opt. Express 14 12183
[7] Liu J, Wan Y, Han W, Yang H, Zhang H, Wang J, Petrov V 2010 Acta Phys. Sin. 59 293 (in Chinese) [刘均海、万 勇、韩文娟、杨红卫、张怀金、王继扬、Petrov V 2010 物理学报 59 293]
[8] Liu J, Han W, Zhang H, Yang H, Petrov V 2010 Appl. Phys. B 98 87
[9] Liu J, Meng X, Shao Z, Jiang M, Ozygus B, Ding A, Weber H 2003 Appl. Phys. Lett. 83 1289
[10] Liu J, Wan Y, Han W, Yang H, Zhang H, Wang J 2010 Appl. Phys. B 98 69
[11] Liu J, Mateos X, Zhang H, Wang J, Jiang M, Griebner U, Petrov V 2006 Opt. Lett. 31 2580
[12] Fox M 2009 Optical Properties of Solids (Beijing:Science Press) pp186—203
[13] Powell R C 1998 Physics of Solid-State Laser Materials (New York:AIP Press, Springer) pp359—377
[14] Kisel V E, Tolstik N A, Troshin A E, Kuleshov N V, Matrosov V N, Matrosova T A, Kupchenko M I, Brunner F, Paschotta R, Morier-Genoud F, Keller U 2006 Appl. Phys. B 85 581
[15] DeLoach L D, Payne S A, Chase L L, Smith L K, Kway W L, Krupke W F 1993 IEEE J. Quantum Electron. 29 1179
[16] Liu J, Zhang H, Wang J, Petrov V 2007 Opt. Lett. 32 2909
[17] Liu J, Yang H, Zhang H, Wang J, Petrov V 2008 Appl. Opt. 47 5436
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[1] Petit J, Viana B, Goldner P, Vivien D, Louiseau P, Ferrand B 2004 Opt. Lett. 29 833
[2] Kisel V E, Troshin A E, Tolstik N A, Shcherbitsky V G, Kuleshov N V, Matrosov V N, Matrosova T A, Kupchenko M I 2004 Opt. Lett. 29 2491
[3] Liu J, Mateos X, Zhang H, Wang J, Jiang M, Griebner U, Petrov V 2005 Opt. Lett. 30 3162
[4] Cheng Y, Zhang H J, Yu Y G, Wang J Y, Tao X T, Liu J H, Petrov V, Ling Z C, Xia H R, Jiang M H 2007 Appl. Phys. B 86 681
[5] Liu J, Han W, Zhang H, Mateos X, Petrov V 2009 IEEE J. Quantum Electron. 45 807
[6] Liu J, Petrov V, Griebner U, Noack F, Zhang H, Wang J, Jiang M 2006 Opt. Express 14 12183
[7] Liu J, Wan Y, Han W, Yang H, Zhang H, Wang J, Petrov V 2010 Acta Phys. Sin. 59 293 (in Chinese) [刘均海、万 勇、韩文娟、杨红卫、张怀金、王继扬、Petrov V 2010 物理学报 59 293]
[8] Liu J, Han W, Zhang H, Yang H, Petrov V 2010 Appl. Phys. B 98 87
[9] Liu J, Meng X, Shao Z, Jiang M, Ozygus B, Ding A, Weber H 2003 Appl. Phys. Lett. 83 1289
[10] Liu J, Wan Y, Han W, Yang H, Zhang H, Wang J 2010 Appl. Phys. B 98 69
[11] Liu J, Mateos X, Zhang H, Wang J, Jiang M, Griebner U, Petrov V 2006 Opt. Lett. 31 2580
[12] Fox M 2009 Optical Properties of Solids (Beijing:Science Press) pp186—203
[13] Powell R C 1998 Physics of Solid-State Laser Materials (New York:AIP Press, Springer) pp359—377
[14] Kisel V E, Tolstik N A, Troshin A E, Kuleshov N V, Matrosov V N, Matrosova T A, Kupchenko M I, Brunner F, Paschotta R, Morier-Genoud F, Keller U 2006 Appl. Phys. B 85 581
[15] DeLoach L D, Payne S A, Chase L L, Smith L K, Kway W L, Krupke W F 1993 IEEE J. Quantum Electron. 29 1179
[16] Liu J, Zhang H, Wang J, Petrov V 2007 Opt. Lett. 32 2909
[17] Liu J, Yang H, Zhang H, Wang J, Petrov V 2008 Appl. Opt. 47 5436
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