Development of a fiber laser diode module in the spectral range of 445–450 nm with an output optical power of more than 100 W

Kotova, E.I., Bugrov, V.Е., Odnoblyudov, M.A.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Котова Е.И., Бугров В.Е., Одноблюдов М.А. Расчёт волоконного лазерного диодного модуля спектрального диапазона 445–450 нм с выходной оптической мощностью более 100 Вт // Оптический журнал. 2019. Т. 86. № 4. С. 74–78. http://doi.org/10.17586/1023-5086-2019-86-04-74-78

Kotova E.I., Bugrov V.E., Odnoblyudov M.A. Development of a fiber laser diode module in the spectral range of 445–450 nm with an output optical power of more than 100 W [in Russian] // Opticheskii Zhurnal. 2019. V. 86. № 4. P. 74–78. http://doi.org/10.17586/1023-5086-2019-86-04-74-78

For citation (Journal of Optical Technology):

E. I. Kotova, V. E. Bugrov, and M. A. Odnoblyudov, "Development of a fiber laser diode module in the spectral range of 445–450 nm with an output optical power of more than 100 W," Journal of Optical Technology. 86(4), 255-259 (2019). https://doi.org/10.1364/JOT.86.000255

Abstract:

This study considers the possibility of developing a laser diode module with a fiber output, having an output power more than 100 W in the spectral range of 445–450 nm, for processing metals with a low reflectance in this wavelength range, such as gold, silver, and copper. As sources of radiation, 64 blue laser diodes were used in a standard TO-18 case with a diameter of 5.6 mm and an output optical power of 2 W each, combined into a single 8×8 array. The developed optical system for collimation, spatial beam conversion, and radiation focusing on the end face of the optical fiber makes it possible to input optical power of more than 116 W into a fiber with an efficiency of more than 90%.

Keywords:

laser diode, fiber connection, spectral range of 445–450 nm

Acknowledgements:

This work was supported by the Ministry of Education and Science of the Russian Federation within the federal target program Research and Development in Priority Areas of the Scientific and Technological Complex of Russia for 2014–2020, code 2017-14-579-0057, agreement No. 14.578.21.0254, dated 26 September 2017, with unique identifier RFMEFI57817X0254.

OCIS codes: 220.4830, 140.3298, 140.3325

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