Design and Optimal Parameters of a Small-sized Diode-Pumped Nd:YAG Laser Setup
| Authors | Yu.P. Machekhin , S.S. Herasymov, O.S. Hnatenko |
| Affiliations |
Kharkiv National University of Radioelectronics, 14, Nauky Ave., 61166 Kharkiv, Ukraine |
| Е-mail | |
| Issue | Volume 15, Year 2023, Number 5 |
| Dates | Received 05 August 2023; revised manuscript received 17 October 2023; published online 30 October 2023 |
| Citation | Yu.P. Machekhin, S.S. Herasymov, O.S. Hnatenko, J. Nano- Electron. Phys. 15 No 5, 05010 (2023) |
| DOI | https://doi.org/10.21272/jnep.15(5).05010 |
| PACS Number(s) | 42.55.Rz, 42.55.Xi, 42.62.Cf |
| Keywords | Laser diode (2) , Radiation power, Pumping, Solid-state laser, Active zone, Reflective mirror, Wavelength, Laboratory setup. |
| Annotation |
This paper is dedicated to the modeling, design, and consequent construction of the practical setup of the small-size solid-state laser with Nd:YAG gain medium and the diode pumping. Solid-state lasers have been in existence for around 50 years and have experienced both positive and negative aspects during their evolution. Nevertheless, they have always held an essential position in numerous industries, scientific endeavors, and everyday activities. Nowadays, such devices are widely used and developed in location, manufacturing, medicine, and of course in military. Hence, the development and optimization of their structure remain a pertinent and important issue. The research reveals the basic component parameters for a compact Nd:YAG laser with diode pump, which can be implemented in the construction of range-finder. The main results of the work. Nd:YAG laser with overall dimensions of 350 х 25 х 25 mm was developed and modeled; the dimensions of the laser active head are 110 х 25 х 25 mm. Diode pumping is a matrix of six diodes with a power of 90 W each, which operate in a pulse mode with a duration of 250 ns. The resonator consists of two mirrors, with an output reflectance from 0.66 to 0.74. The active element is 72 mm long. With these laser parameters, the first giant pulse after the start of pumping was achieved at 59 s, an output energy of 25 mJ, and a laser system efficiency of 22 %. Additionally, the following radiation pulses were generated with a time interval of 4 s. The results obtained in this work make it possible to create a diode-pumped solid-state laser with an output radiation energy of up to 25 mJ and have compact cavity dimensions of about 80 х 25 х 25 mm. |
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