Efficient laser based on neodymium-doped yttrium aluminum garnet with passive cooling of the active element and linear laser diode arrays

Alekseev, V.N.

Full text «Opticheskii Zhurnal»

Full text on elibrary.ru

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Алексеев В.Н. Эффективный лазер на основе алюмоиттриевого граната с неодимом с пассивным охлаждением активного элемента и линеек лазерных диодов // Оптический журнал. 2019. Т. 86. № 8. С. 70–75. http://doi.org/10.17586/1023-5086-2019-86-08-70-75

Alekseev V.N. Efficient laser based on neodymium-doped yttrium aluminum garnet with passive cooling of the active element and linear laser diode arrays [in Russian] // Opticheskii Zhurnal. 2019. V. 86. № 8. P. 70–75. http://doi.org/10.17586/1023-5086-2019-86-08-70-75

For citation (Journal of Optical Technology):

V. N. Alekseev, "Efficient laser based on neodymium-doped yttrium aluminum garnet with passive cooling of the active element and linear laser diode arrays," Journal of Optical Technology. 86(8), 515-520 (2019). https://doi.org/10.1364/JOT.86.000515

Abstract:

This paper considers a variant of a compact laser emitter for a rangefinder with passive (contact) cooling of the cylindrical active element and linear laser diode arrays. The density distribution of the stored energy in the cross-section of the active element was calculated when pumped from three and five sides, and the thermal fields during a 90 s operation of the laser emitter with a pulse repetition rate of 10 Hz were calculated. The results indicate that the thermal lens in the active element has less optical power than under traditional liquid flow cooling. The experimental results verifying the calculations are provided herein. The laser efficiency in the single-pulse operating regime is close to 20% at an energy pulse of 70 mJ.

Keywords:

laser emitter with diode pumping, passive cooling, laser rangefinder, thermal lens, laser resonator

OCIS codes: 140.3489, 140.3410, 140.3570, 140.3280

References:

1. P. P. Nikolaev, “Quantrons of solid-state lasers with a variable distribution of the gain in the active element,” in Author’s abstract of dissertation for candidate of sciences, IOF RAN, Moscow (2016).
2. K. A. Orekhov, “Simulation of a Nd:YAG based laser emitter with passive cooling for distance measurement,” Prib. Metody Izmer. 7(1), 50–57 (2016).
3. D. A. Arkhipov, V. I. Venglyuk, V. A. Derevyanko, M. S. Egorov, Yu. A. Rezunkov, and V. V. Stepanov, “Optimization of the performance of a solid-state diode-pumped laser for space applications,” Nauchno-Tekh. Vestn. Inf. Tekhnol. Mekh. Opt. 15(6), 1000–1007 (2015).
4. A. V. Mezenov, L. N. Soms, and A. I. Stepanov, Thermo-optics of Solid-State Lasers (Mashinostroenie, Leningrad, 1986).
5. V. N. Alekseev, V. I. Liber, and A. S. Volkov, “A cavity for enhancing the brightness of lasers with an induced thermal lens in the active element,” J. Opt. Technol. 81(9), 540–544 (2014) [Opt. Zh. 81(9), 73–79 (2014).