pimiПриборы и методы измеренийDevices and Methods of Measurements2220-95062414-0473BNTU10.21122/2220-9506-2020-11-1-7-14pimi-634Research ArticleСредства измеренийMeasuring instrumentsРегенеративный усилитель чирпированных импульсов на кристалле Yb3+:LuAlO3 с усилением отдельных спектральных компонент для применений в терагерцовой области спектраDual Wavelength Chirped Pulse Regenerative Amplifier Based on Yb3+:LuAlO3 Crystal for Terahertz ApplicationsРуденковА. С.RudenkovA. S.

Адрес для переписки: Александр Руденков – Центр оптических материалов и технологий, Белорусский национальный технический университет, пр-т Независимости, 65, г. Минск 220013, Беларусь.    e-mail: a.rudenkov@bntu.by

Address for correspondence: Alexander Rudenkov – Center for Optical Materials and Technologies, Belarusian National Technical University, Nezavisimosty Ave., 65, Minsk 220013, Belarus.    e-mail: a.rudenkov@bntu.by

a.rudenkov@bntu.byКисельВ. Э.KiselV. E.

Центр оптических материалов и технологий

пр-т Независимости, 65, Минск 220013

Viktor Kisel, Center for Optical Materials and Technologies

Nezavisimosty Ave., 65, Minsk 220013, Belarus

ЯсюкевичА. С.YasukevichA. S.

Центр оптических материалов и технологий

пр-т Независимости, 65, Минск 220013

Anatol Yasukevich, Center for Optical Materials and Technologies

Nezavisimosty Ave., 65, Minsk 220013, Belarus

ОванесьянК. Л.HovhannesyanK. L.

0203, Аштарак-2

Karine Hovhannesyan

0203, Ashtarak-2, Armenia

 

ПетросянА. Г.PetrosyanA. G.

0203, Аштарак-2

Ashot Petrosyan

0203, Ashtarak-2, Armenia

 

КулешовН. В.KuleshovN. V.

Центр оптических материалов и технологий

пр-т Независимости, 65, Минск 220013

Nikolai Kuleshov, Center for Optical Materials and Technologies

Nezavisimosty Ave., 65, Minsk 220013, Belarus

Белорусский национальный технический университетБеларусьBelarusian National Technical UniversityBelarusИнститут физических исследований Национальной академии наук АрменииАрменияInstitute for Physical Research, National Academy of Sciences of ArmeniaArmenia202017032020111714Copyright © Руденков А.С., Кисель В.Э., Ясюкевич А.С., Ованесьян К.Л., Петросян А.Г., Кулешов Н.В., 20202020Руденков А.С., Кисель В.Э., Ясюкевич А.С., Ованесьян К.Л., Петросян А.Г., Кулешов Н.В.Rudenkov A.S., Kisel V.E., Yasukevich A.S., Hovhannesyan K.L., Petrosyan A.G., Kuleshov N.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://pimi.bntu.by/jour/article/view/634

Компактные регенеративные усилители чирпированных импульсов с диодной накачкой, обеспечивающие частоту повторения усиленных импульсов в сотни килогерц, построенные на материалах, легированных ионами Yb3+, представляют практический интерес для широкого ряда научных, промышленных и биомедицинских применений. Целью данной работы являлось исследование регенеративного усилителя на кристалле Yb3+:LuAlO3 с усилением отдельных спектральных компонент импульсов задающего лазера.

Кристаллы алюминатов со структурой перовскита обладают уникальными спектроскопическими свойствами, что позволяет использовать спектр усиления активной среды регенеративного усилителя в качестве амплитудного фильтра и усиливать отдельные участки спектра импульсов задающего лазера без каких-либо дополнительных оптических компонентов.

В данной работе впервые исследован простой подход, позволяющий использовать спектр усиления активной среды регенеративного усилителя как амплитудный фильтр для формирования спектра усиленного импульса в виде спектра состоящего из отдельных полос. Максимальная средняя выходная мощность 5,4 Вт (3,8 Вт после компрессора) с оптической эффективностью 22,5 % получена для поляризации излучения параллельной оси b кристалла Yb:LuAP при частоте следования импульсов 200 кГц. Длительность сжатых импульсов составила 708 фс при учете влияния всех спектральных компонент, и 643 фс и 536 фс отдельно для спектральных компонент с центральными длинами волн 1018,3 нм и 1041,1 нм. Проведённые исследования показывают высокий потенциал использования кристалла Yb3+:LuAP в качестве активного элемента компактных регенеративных усилителей чирпированных импульсов с диодной накачкой.

Compact diode-pumped chirped pulse regenerative amplifier systems with pulse repetition rate of hundreds kilohertz based on Yb3+-doped crystals are of practical importance for wide range of applications such as materials processing, medicine, scientific research, etc. The aim of this work was to study the Yb3+:LuAlO crystal based dual wavelength chirped pulse regenerative amplifier.

Perovskite-like aluminate crystals have unique spectroscopic properties that allowed to use amplifier active element gain spectrum as an amplitude filter for amplified pulse spectrum and even obtained dual wavelength amplification without any additional components.

In our work a simple way to obtain dual-wavelength operation of chirped pulse regenerative amplifier by using the active medium gain spectrum as an amplitude filter for the formation of the amplified pulses spectrum demonstrated for the first time to our knowledge. Maximum output power of 5.4 W of chirped pulses (3.8 W after compression) and optical-to-optical efficiency of 22.5 % have been obtained for Yb:LuAP E//b-polarization at 200 kHz repetition rate. Compressed amplified pulse duration was about 708 fs while separate spectral components durations were 643 fs and 536 fs at 1018.3 nm and 1041.1 nm central wavelengths, respectively. Performed investigations show high potential of Yb3+:LuAP crystals as active elements of compact diode pumped chirped pulse regenerative amplifiers

регенеративный усилитель чирпированных импульсовионы иттербиядиодная накачкакристалл лютециевого алюминатаэффект сужения спектра усиленияchirped pulse regenerative amplifierytterbium ionsdiode pumpinglutetium aluminate crystalsgain narrowing effectReferencesSchneider W., Ryabov A., Lombosi Cs., Metzger T., Major Zs., Fülöp J.A., Baum P. 800-fs, 330μJ pulses from a 100-W regenerative Yb:YAG thin-disk amplifier at 300 kHz and THz generation in LiNbO3. Opt. Lett., 2014, vol. 39, iss. 23, pp. 6604‒6607. DOI: 10.1364/OL.39.006604Schneider W., Ryabov A., Lombosi Cs., Metzger T., Major Zs., Fülöp J.A., Baum P. 800-fs, 330μJ pulses from a 100-W regenerative Yb:YAG thin-disk amplifier at 300 kHz and THz generation in LiNbO3. Opt. Lett., 2014, vol. 39, iss. 23, pp. 6604‒6607. DOI: 10.1364/OL.39.006604Koustuban Ravi, Wenqian Ronny Huang, Sergio Carbajo, Emilio A. Nanni, Damian N. Schimpf, Erich P. Ippen, and Franz. X. Kärtner. Theory of terahertz generation by optical rectification using tilted-pulsefronts. Opt. Express, 2015, vol. 23, iss. 4, pp. 5253‒5276. DOI: 10.1364/OE.23.005253Koustuban Ravi, Wenqian Ronny Huang, Sergio Carbajo, Emilio A. Nanni, Damian N. Schimpf, Erich P. Ippen, and Franz. X. Kärtner. Theory of terahertz generation by optical rectification using tilted-pulsefronts. Opt. Express, 2015, vol. 23, iss. 4, pp. 5253‒5276. DOI: 10.1364/OE.23.005253Meyer F., Hekmat N., Mansourzadeh S., Fobbe F., Aslani F., Hoffmann M., Saraceno C.J. Optical rectification of a 100 W average power mode-locked thindisk oscillator. Opt. Lett., 2018, vol. 43, pp. 5909‒5912. DOI: 10.1364/OL.43.005909Meyer F., Hekmat N., Mansourzadeh S., Fobbe F., Aslani F., Hoffmann M., Saraceno C.J. Optical rectification of a 100 W average power mode-locked thindisk oscillator. Opt. Lett., 2018, vol. 43, pp. 5909‒5912. DOI: 10.1364/OL.43.005909Ding Y.J. Generation of quasi-single-cycle THz pulses based on broadband-phase-matched differencefrequency generation: high conversion efficiencies and output powers. Conference on Lasers and Electro-Optics, 2005, Baltimore, MD, vol. 2, pp. 1453−1455. DOI: 10.1109/CLEO.2005.202156Ding Y.J. Generation of quasi-single-cycle THz pulses based on broadband-phase-matched differencefrequency generation: high conversion efficiencies and output powers. Conference on Lasers and Electro-Optics, 2005, Baltimore, MD, vol. 2, pp. 1453−1455. DOI: 10.1109/CLEO.2005.202156Saito K., Tanabe T., Oyama Y. THz-Wave Generation from GaP THz Photonic Crystal Waveguides under Difference-Frequency Mixing. Optics and Photonics Journal, 2012, vol. 2, no. 3, pp. 201‒205. DOI: 10.4236/opj.2012.223030Saito K., Tanabe T., Oyama Y. THz-Wave Generation from GaP THz Photonic Crystal Waveguides under Difference-Frequency Mixing. Optics and Photonics Journal, 2012, vol. 2, no. 3, pp. 201‒205. DOI: 10.4236/opj.2012.223030Zhao Pu, Ragam Srinivasa, Yujie J. Ding and Ioulia B. Zotova. Investigation of terahertz generation from passively Q-switched dual-frequency laser pulses. Optics Letters, 2011, vol. 36, iss. 24, pp. 4818‒4820. DOI: 10.1364/OL.36.004818Zhao Pu, Ragam Srinivasa, Yujie J. Ding and Ioulia B. Zotova. Investigation of terahertz generation from passively Q-switched dual-frequency laser pulses. Optics Letters, 2011, vol. 36, iss. 24, pp. 4818‒4820. DOI: 10.1364/OL.36.004818Bezotosnyi V.V., Cheshev E.A., Gorbunkov M.V., Koromyslov A.L., Krokhin O.N., Mityagin Yu.A., Popov Yu.M., Savinov S.A., Tunkin V.G. Coherent THz Repetitive Pulse Generation in a GaSe Crystal by Dualwavelength Nd:YLF Laser. Physics Procedia, 2015, vol. 72, pp. 405−410. DOI: 10.1016/j.phpro.2015.09.075Bezotosnyi V.V., Cheshev E.A., Gorbunkov M.V., Koromyslov A.L., Krokhin O.N., Mityagin Yu.A., Popov Yu.M., Savinov S.A., Tunkin V.G. Coherent THz Repetitive Pulse Generation in a GaSe Crystal by Dualwavelength Nd:YLF Laser. Physics Procedia, 2015, vol. 72, pp. 405−410. DOI: 10.1016/j.phpro.2015.09.075Schaar J.E., Vodopyanov K.L., Fejer M.M. Intracavity terahertz-wave generation in a synchronously pumped optical parametric oscillator using quasi-phasematched GaAs. Opt. Lett., 2007, vol. 32, pp. 1284‒1286. DOI: 10.1364/OL.32.001284Schaar J.E., Vodopyanov K.L., Fejer M.M. Intracavity terahertz-wave generation in a synchronously pumped optical parametric oscillator using quasi-phasematched GaAs. Opt. Lett., 2007, vol. 32, pp. 1284‒1286. DOI: 10.1364/OL.32.001284Walsh David A., Browne Peter G., Dunn Malcolm H., Rae Cameron F. Intracavity parametric generation of nanosecond terahertz radiation using quasi-phasematching. Opt. Express, 2010, vol. 18, pp. 13951‒13963. DOI: 10.1364/OE.18.013951Walsh David A., Browne Peter G., Dunn Malcolm H., Rae Cameron F. Intracavity parametric generation of nanosecond terahertz radiation using quasi-phasematching. Opt. Express, 2010, vol. 18, pp. 13951‒13963. DOI: 10.1364/OE.18.013951Hoffmann S., Hofmann M.R. Generation of Terahertz radiation with two color semiconductor lasers. Laser & Photon. Rev., 2007, vol. 1, iss. 1, pp. 44–56. DOI: 10.1002/lpor.200710004Hoffmann S., Hofmann M.R. Generation of Terahertz radiation with two color semiconductor lasers. Laser & Photon. Rev., 2007, vol. 1, iss. 1, pp. 44–56. DOI: 10.1002/lpor.200710004Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, Nikolay Kuleshov. Spectroscopy and continuous wave laser performance of Yb3+:LuAlO3 crystal. Opt. Lett., 2016, vol. 41, pp. 5805‒5808. DOI: 10.1364/OL.41.005805Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, Nikolay Kuleshov. Spectroscopy and continuous wave laser performance of Yb3+:LuAlO3 crystal. Opt. Lett., 2016, vol. 41, pp. 5805‒5808. DOI: 10.1364/OL.41.005805Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, Nikolai Kuleshov. Compact 999.6 nm Аctively Q-Switched Yb3+:LuAlO3 Laserfor Laser-Induced Breakdown Spectroscopy. Devices and Methods of Measurements, 2019, vol. 10, no. 2, рр. 119–127. DOI: 10.21122/2220-9506-2019-10-2-119-127Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, Nikolai Kuleshov. Compact 999.6 nm Аctively Q-Switched Yb3+:LuAlO3 Laserfor Laser-Induced Breakdown Spectroscopy. Devices and Methods of Measurements, 2019, vol. 10, no. 2, рр. 119–127. DOI: 10.21122/2220-9506-2019-10-2-119-127Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, and Nikolay Kuleshov. Yb3+:LuAlO3 crystal as a gain medium for efficient broadband chirped pulse regenerative amplification. Opt. Lett., 2017, vol. 42, pp. 2415‒2418. DOI:10.1364/OL.42.002415Alexander Rudenkov, Viktor Kisel, Anatol Yasukevich, Karine Hovhannesyan, Ashot Petrosyan, and Nikolay Kuleshov. Yb3+:LuAlO3 crystal as a gain medium for efficient broadband chirped pulse regenerative amplification. Opt. Lett., 2017, vol. 42, pp. 2415‒2418. DOI:10.1364/OL.42.002415Petrosyan A.G., Popova V.F., Gusarov V.V., Shirinyan G.O., Pedrini C., Lecoq P. The Lu2O3– Al2O3 system: Relationships for equilibrium-phase and supercooled states. Journal of Crystal Growth, 2006, vol. 293, pp. 74‒77. DOI: 10.1016/j.jcrysgro.2006.05.017Petrosyan A.G., Popova V.F., Gusarov V.V., Shirinyan G.O., Pedrini C., Lecoq P. The Lu2O3– Al2O3 system: Relationships for equilibrium-phase and supercooled states. Journal of Crystal Growth, 2006, vol. 293, pp. 74‒77. DOI: 10.1016/j.jcrysgro.2006.05.017Petrosyan A.G., Popova V., Ugolkov V.L., Romanov D.P., Ovanesyan K.L. A phase stability study in the Lu2O3-Al2O3 system. J. Crystal Growth, 2013, vol. 377, pp. 178–183. DOI: 10.1016/j.jcrysgro.2013.04.054Petrosyan A.G., Popova V., Ugolkov V.L., Romanov D.P., Ovanesyan K.L. A phase stability study in the Lu2O3-Al2O3 system. J. Crystal Growth, 2013, vol. 377, pp. 178–183. DOI: 10.1016/j.jcrysgro.2013.04.054Kühn Henning, Fredrich-Thornton Susanne T., Kränkel Christian, Peters Rigo, Petermann Klaus. Model for the calculation of radiation trapping and description of the pinhole method. Opt. Lett., 2007, vol. 32, pp. 1908‒1910. DOI: 10.1364/OL.32.001908Kühn Henning, Fredrich-Thornton Susanne T., Kränkel Christian, Peters Rigo, Petermann Klaus. Model for the calculation of radiation trapping and description of the pinhole method. Opt. Lett., 2007, vol. 32, pp. 1908‒1910. DOI: 10.1364/OL.32.001908Petrosyan A.G. Crystal growth of laser oxides in the vertical Bridgman configuration. Journal of Crystal Growth, 1994, vol. 139, pp. 372‒392. DOI: 10.1016/0022-0248(94)90190-2Petrosyan A.G. Crystal growth of laser oxides in the vertical Bridgman configuration. Journal of Crystal Growth, 1994, vol. 139, pp. 372‒392. DOI: 10.1016/0022-0248(94)90190-2Shannon R.D. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallogr A., 1976, vol. 32, pp. 751‒767. DOI: 10.1107/S0567739476001551Shannon R.D. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallogr A., 1976, vol. 32, pp. 751‒767. DOI: 10.1107/S0567739476001551Sumida D.S., Fan T.Y. Effect of radiation trapping on fluorescence lifetime and emission cross section measurements in solid-state laser media. Opt. Lett., 1994, vol. 19, pp. 1343‒1345. DOI: 10.1364/OL.19.001343Sumida D.S., Fan T.Y. Effect of radiation trapping on fluorescence lifetime and emission cross section measurements in solid-state laser media. Opt. Lett., 1994, vol. 19, pp. 1343‒1345. DOI: 10.1364/OL.19.001343Boulon G., Guyot Y., Canibano H., Hraiech S., Yoshikawa A. Characterization and comparison of Yb3+doped YA1O3 perovskite crystals (Yb:YAP) with Yb3+doped Y3Al5O12 garnet crystals (Yb:YAG) for laser application. J. Opt. Soc. Am. B, 2008, vol. 25, pp. 884‒896. DOI: 10.1364/JOSAB.25.000884Boulon G., Guyot Y., Canibano H., Hraiech S., Yoshikawa A. Characterization and comparison of Yb3+doped YA1O3 perovskite crystals (Yb:YAP) with Yb3+doped Y3Al5O12 garnet crystals (Yb:YAG) for laser application. J. Opt. Soc. Am. B, 2008, vol. 25, pp. 884‒896. DOI: 10.1364/JOSAB.25.000884Yasyukevich A.S., Shcherbitskii V.G., Kisel V.E., Mandrik A.V., Kuleshov N.V. Integral method of reciprocity in the spectroscopy of laser crystals with impurity centers. Journal of Applied Spectroscopy, 2004, vol. 71, no. 2, pp. 202‒208. DOI: 10.1023/B:JAPS.0000032875.04400.a0Yasyukevich A.S., Shcherbitskii V.G., Kisel V.E., Mandrik A.V., Kuleshov N.V. Integral method of reciprocity in the spectroscopy of laser crystals with impurity centers. Journal of Applied Spectroscopy, 2004, vol. 71, no. 2, pp. 202‒208. DOI: 10.1023/B:JAPS.0000032875.04400.a0Viktor E. Kisel, Sergey V. Kurilchik, Anatol S. Yasukevich, Sergey V. Grigoriev, Sofya A. Smirnova, and Nikolay V. Kuleshov. Spectroscopy and femtosecond laser performance of Yb3+:YAlO3 crystal. Opt. Lett., 2008, vol. 33, pp. 2194‒2196. DOI: 10.1364/OL.33.002194Viktor E. Kisel, Sergey V. Kurilchik, Anatol S. Yasukevich, Sergey V. Grigoriev, Sofya A. Smirnova, and Nikolay V. Kuleshov. Spectroscopy and femtosecond laser performance of Yb3+:YAlO3 crystal. Opt. Lett., 2008, vol. 33, pp. 2194‒2196. DOI: 10.1364/OL.33.002194

The authors declare that there are no conflicts of interest present.