УДК: 535.345

Study of neodymium-containing crystalline active elements with discrete and gradient variation of the dopant concentration in the pumping direction

Gagarskiy, S.V., Nazarov V.V., Sergeev, A.N., Yurevich V.I.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Гагарский С.В., Назаров В.В., Сергеев А.Н., Юревич В.И. Исследование неодимсодержащих кристаллических активных элементов с дискретным и градиентным изменением концентрации активатора в направлении накачки // Оптический журнал. 2012. Т. 79. № 6. С. 20–30.

Gagarskiĭ S. V. , Yurevich V. I., Nazarov V. V., Sergeev A. N. Study of neodymium-containing crystalline active elements with discrete and gradient variation of the dopant concentration in the pumping direction [in Russian] // Opticheskii Zhurnal. 2012. V. 79. № 6. P. 20–30.

For citation (Journal of Optical Technology):

S. V. Gagarskiĭ, V. I. Yurevich, V. V. Nazarov, and A. N. Sergeev, "Study of neodymium-containing crystalline active elements with discrete and gradient variation of the dopant concentration in the pumping direction," Journal of Optical Technology. 79(6), 329-336 (2012). https://doi.org/10.1364/JOT.79.000329

Abstract:

This paper discusses the operation of active elements with various types of supplementary end heat sinks in a laser based on neodymium-containing crystals with end diode pumping. A comparison is made of heat sinks coupled with the active element and fabricated from an undoped crystal with the same matrix as the active element, as well as crystals with gradient variation of the dopant concentration from zero to a maximum. The types of laser devices in which such elements are suitable are determined.

Keywords:

laser, neodymium-containing media, activator concentration, end pumping, additional heat sink

OCIS codes: 140.3530

References:

1. W. Koechner, Solid-State Laser Engineering (Springer-Verlag, Berlin, 1999).
2. R. Ifflaender, Solid-State Lasers for Materials Processing: Fundamental Relations (Springer-Verlag, Berlin, 1998).
3. J. Kalisky, The Physics and Engineering of Solid-State Lasers (SPIE Press, Bellingham, Washington, 2009).
4. D. G. Matthews and L. R. Marshall, “Pump face cooling,” in Advanced Solid-State Lasers, Jan. 2001, Conference Paper 75/MB19-2.
5. M. Frede, R. Wilhelm, M. Brendel, C. Fallnich, F. Seifert, B. Willke, and K. Danzmann, “High-power fundamental-mode Nd:YAG laser with efficient birefringence compensation,” Opt. Express 12, 3581 (2004).
6. D. Kracht, M. Frede, and C. Fallnich, “Comparison of crystalline and ceramic composite Nd:YAG for high-power diode end-pumping,” Opt. Express 13, 6212 (2005).
7. Y. J. Huang, Y. P. Huang, H. C. Liang, K. W. Su, Y. F. Chen, and K. F. Huang, “Comparative study between conventional and diffusion- bonded Nd-doped vanadate crystals in the passively mode-locked operation,” Opt. Express 18, 9518 (2010).
8. J. K. Jabczyn´ski, K. Kopczyn´ski, and A. Szczes´niak, “Thermal lensing and thermal aberration investigations in diode-pumped lasers,” Opt. Eng. 35, 3572 (1996).
9. C. H. Chen, M. D. Wei, and W. F. Hsieh, “Beam-propagation-dominant instability in an axially pumped solid-state laser near degenerate resonator configurations,” J. Opt. Soc. Am. B 18, 1076 (2001).
10. N. P. Belashenko, S. V. Gagarski˘ı, M. Z. Smirnov, P. N. Fimin, and V. Yu. Khramov, “Diffraction model of a quasi-continuous laser with diode pumping and active Q switching,” Nauchno-Tekhnich. Vestnik SPbGU ITMO No. 16, 101 (2004).
11. G. Turri, H. P. Jenssen, F. Cornacchia, M. Tonelli, and M. Bass, “Temperature-dependent stimulated-emission cross-section in Nd3+:YVO4 crystal,” J. Opt. Soc. Am. B 26, 2084 (2009).
12. V. A. Alekseeva, S. V. Gagarski˘ı, U. Kang, K. K. Li, A. V. Lukin, M. Yu. Sibirev, and S. I. Khankov, “Temperature dependence of the energy parameters of a KGW:Nd3+ laser that lases at 1.06 and 1.35 μm,” Opt. Zh. 70, No. 2, 33 (2003). [J. Opt. Technol. 70, 95 (2003)].
13. J. L. Blows, T. Omatsu, J. Dawes, H. Pask, and M. Tated, “Heat generation In Nd:YVO with and without laser action,” IEEE Photonics Technol. Lett. 10, 1727 (1998).
14. V. V. Togatov, S. V. Gagarski˘ı, P. A. Gnatyuk, and Yu. I. Cherevko, “Pulsed supply unit of laser diode modules for pumping solid-state lasers,” Prib. Tekh. ´Eksp. No. 2, 158 (2007).
15. D. Wright, P. Greve, J. Fleischer, and L. Austin, “Laser beam width, divergence and beam propagation factor—an international standardization approach,” Opt. Quantum Electron. 24, 993 (1992).