УДК: 621.375.8, 535-15, 621.372.632, 615.47:617-089, 617.7, 616.8-089, 616.1

Mid-IR laser for high-precision surgery

Serebryakov, V.A., Boyko, E.V., Kalintsev, A.G., Kornev, A.F., Narivonchik, A.S., Pavlova, A.L.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Серебряков В.А., Бойко Э.В., Калинцев А.Г., Корнев А.Ф., Наривончик А.С., Павлова А.Л. Лазер среднего инфракрасного диапазона спектра для прецизионной хирургии // Оптический журнал. 2015. Т. 82. № 12. С. 3–13.

Serebryakov V.A., Boyko E.V., Kalintsev A.G., Kornev A.F., Narivonchik A.S., Pavlova A.L. Mid-IR laser for high-precision surgery [in Russian] // Opticheskii Zhurnal. 2015. V. 82. № 12. P. 3–13.

For citation (Journal of Optical Technology):

V. S. Serebryakov, É. V. Boĭko, A. G. Kalintsev, A. F. Kornev, A. S. Narivonchik, and A. L. Pavlova, "Mid-IR laser for high-precision surgery," Journal of Optical Technology. 82(12), 781-788 (2015). https://doi.org/10.1364/JOT.82.000781

Abstract:

We have studied the potential for using mid-IR lasers in high-precision non-traumatic surgery, validated the parameters and optical design of a tunable solid-state laser with parametric conversion of radiation to the protein absorption band (6–8 μm), and tested the key components of such a laser experimentally. A pulsed-periodic Ho³⁺:YLF laser (λ=2.051 μm), pumped by a Tm fiber laser (λ=1.94 μm), with pulse energies of up to 80 mJ (at a frequency of 100 Hz) and 50 mJ (at a frequency of 1000 Hz) was developed. The laser had a pulse width of 20 ns, a beam quality M² of 1.5, and a laser optical efficiency of 30%. The radiation from the Ho:YLF laser was parametrically converted to the mid-IR (3–6 μm) using ZnGeP₂ (ZGP) nonlinear crystals. The total signal + idler wave energies of up to 100 mJ at pulse repetition rates of 100 Hz (and a conversion efficiency of 40%) were achieved using a two-cavity ZGP optical parametric oscillator system and a parametric amplifier (paramp).

Keywords:

mid-IR lasers, parametric oscillator, laser ablation, high-precision surgery

Acknowledgements:

This work was funded by the Russian Federation Ministry of Education and Science (Contract No. 14.579.21.0015), by government funding provided to leading Russian Federation universities (Subsidy 074-U01), and by Russian Federation Presidential Grant for Government Support of Leading Scientific Schools No. NShch 1364.201.

OCIS codes: 140.3070 , 170.1020, 170.3890, 190.4970

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