Now showing items 1-20 of 28

    • Broadly tunable femtosecond mode-locking in a Tm:KYW laser near 2 μm 

      Lagatsky, A. A.; Calvez, S.; Gupta, J. A.; Kisel, V. E.; Kuleshov, N. V.; Brown, C. T. A.; Dawson, M. D.; Sibbett, W. (Optical Society of America, 2011)
      Efficient mode-locking in a Tm:KY(WO4)(2) laser is demonstrated by using InGaAsSb quantum-well SESAMs. Self-starting ultrashort pulse generation was realized in the 1979-2074 nm spectral region. Maximum average output power up to 411 mW was produced around 1986 nm with the corresponding pulse duration and repetition rate of 549 fs and 105 MHz respectively. Optimised pulse durations ...
      2018-03-15
    • Compact passively Q-switched diode-pumped Tm:KY(WO4)2 laser with 8 ns/30 μJ pulses 

      Gaponenko, M. S.; Onushchenko, A. A.; Kisel, V. E.; Malyarevich, A. M.; Yumashev, K. V. (2012)
      A compact diode-pumped solid-state Tm:KY(WO4)2 laser with cavity length of 1 cm passively Q-switched with a PbS-quantum-dot-based saturable absorber is presented. The laser operates at the wavelength of 1.94 ¹m and produces pulses with duration of 8 ns and energy of 30 ¹J at the repetition rate up to 4.2 kHz. The maximum output power of 120 mW is achieved at incident pump power ...
      2018-03-18
    • Compact Passively Q-Switched Tm:KY(WO4)2 Laser 

      Kisel, V. E. (БНТУ, 2022)
      Diode-pumped thulium lasers emitting in the spectral range near 2 μm are attractive for applications in different areas: surgery, rangefinding, and environmental atmosphere monitoring. In this article the latest results of Tm:KYW laser performance with a polycrystalline Cr:ZnSe as the most available saturable absorber for 2 μm spectral region are presented. A maximum continuous-wave ...
      2022-04-05
    • Continuous-wave and Q-switched operation of a compact, diode-pumped Yb3+:KY(WO4)2 planar waveguide laser 

      Bain, F. M.; Lagatsky, A. A.; Kurilchick, S. V.; Kisel, V. E.; Guretsky, S. A.; Luginets, A. M.; Kalanda, N. A.; Kolesova, I. M.; Kuleshov, N. V.; Sibbett, W.; Brown, C. T. A. (Optical Society of America, 2009)
      A diode-pumped LPE-grown Yb:KYW planar waveguide laser is demonstrated in a microchip monolithic cavity configuration. Output powers as high as 148mW and thresholds as low as 40mW were demonstrated during continuous-wave operation. Pulses of 170ns duration with maximum pulse energy of 44nJ at a 722kHz repetition rate were generated when Q-switched using a semiconductor saturable ...
      2012-01-23
    • Continuous-wave Laser on Er,Yb-Codoped Pentaborate Crystal 

      Gorbachenya, K. N.; Kisel, V. E.; Deineka, R. V.; Yasukevich, A. S.; Kuleshov, N. V.; Maltsev, V. V.; Mitina, D. D.; Volkova, E. A.; Leonyuk, N. I. (БНТУ, 2019)
      We report, for the first time to our knowledge, a diode-pumped continuous-wave microchip Er,Yb:YMgB5O10 laser. The purpose of this work was to study the growth technique, spectroscopic properties and continuous-wave laser performance of Er3+,Yb3+:YMgB5O10 novel crystal. Absorption and luminescence spectra as well as kinetics of luminescence decay were studied. Ytterbiumerbium ...
      2020-01-08
    • CW and Q-switched diode-pumped laser operation of Yb 3+:NaLa(MoO4)2 

      Mandrik, A. V.; Troshin, A. E.; Kisel, V. E.; Yasukevich, A. S.; Klavsut, G. N.; Kuleshov, N. V.; Pavlyuk, A. A. (Springer, 2005)
      Continuous wave (CW) and Q-switched diode-pumped laser operation of Yb3+:NaLa(MoO4)2 single crystal was to our knowledge, demonstrated for the first time. A CW output power of 220 mW and slope efficiency of 46% were obtained. Q-switched laser operation was achieved with a pulse duration of 60 ns average output power of 70mW and slope efficiency of 22%.
      2016-03-24
    • Diode-pumped Er,Yb:GdAB laser passively Q-switched by MBE-grown Cr:ZnS/Cr,Co:ZnS thin films 

      Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Tolstik, N.; Karhu, E.; Furtula, V.; Sorokin, E.; Maltsev, V. V.; Leonyuk, N. I.; Gibson, U.; Sorokina, I. T.; Kuleshov, N. V. (БНТУ, 2016)
      Diode-pumped Er,Yb:GdAB laser passively Q-switched by MBE-grown Cr:ZnS/Cr,Co:ZnS thin films / K. N. Gorbachenya [et al.] // Приборостроение-2016 : материалы 9-й международной научно-технической конференции, Минск, 23-25 ноября 2016 г. / Белорусский национальный технический университет ; редкол.: О. К. Гусев [и др.]. – Минск, 2016. – С. 234-235.
      2017-03-23
    • Diode-pumped passively mode-locked Er,Yb:YAl3(BO3)4laser at 1.5-1.6 μm 

      Lagatsky, A. A.; Kisel, V. E.; Troshin, A. E.; Tolstik, N. A.; Kuleshov, N. V.; Leonyuk, N. I.; Zhukov, A. E.; Rafailov, E. U.; Sibbett, W. (2008)
      We report the first demonstration to our knowledge of passive mode locking in a diode-pumped Er3+ and Yb3+ codoped YAl3(BO3)4 laser operating in the 1.5-1.6 μm spectral region. Low-loss GaInNAs quantum-well semiconductor saturable absorber mirrors are used for the initiation and stabilization of the ultrashort-pulse generation. Pulses as short as 4.8 ps were generated at 1530 nm ...
      2012-01-23
    • Efficient 1 W continuous-wave diode-pumped Er,Yb:YAl3(BO3)4 laser 

      Tolstik, N. A.; Kurilchik, S. V.; Kisel, V. E.; Kuleshov, N. V.; Maltsev, V. V.; Pilipenko, O. V.; Koporulina, E. V.; Leonyuk, N. I. (Optical Society of America, 2007)
      We report the spectroscopy and high-power continuous-wave (CW) diode-pumped laser operation of Er:Yb:YAl3(BO3)4 crystal. Absorption and stimulated emission spectra, emission lifetimes, and efficiency of energy transfer from Yb3+ to Er3+ ions were determined. A CW Er:Yb:YAB laser emitting at 1602, 1555, and 1531 nm with output power as high as 1 W and slope efficiency up to 35% ...
      2012-01-23
    • Energy transfer in Tm,Ho:KYW crystal and diode-pumped microchip laser operation 

      Kurilchik, S. V.; Gusakova, N. V.; Demesh, M. P.; Yasukevich, A. S.; Kisel, V. E.; Pavlyuk, A. A.; Kuleshov, N. V. (Optical Society of America, 2016)
      An investigation of Tm-Ho energy transfer in Tm(5at.%), Ho(0.4at.%):KYW single crystal by two independent techiques was performed. Based on fluorescence dynamics measurements, energy transfer parameters P71 and P28 for direct (Tm→Ho) and back (Ho→Tm) transfers, respectively, as well as equilibrium constant Θ were evaluated. The obtained results were supported by calculation of ...
      2016-05-12
    • Er,Yb:Ca3RE2(BO3)4 (RE=Y, Gd) – Novel 1.5 μm Laser Crystals 

      Gorbachenya, K. N.; Deineka, R. V.; Kisel, V. E.; Yasukevich, A. S.; Shekhovtsov, A. N.; Kosmyna, M. B.; Kuleshov, N. V. (БНТУ, 2019)
      The search for new crystalline host materials for the usage in lasers emitting in the eye-safe spectral range of 1.5–1.6 μm is an important task. The aim of this work was to study the growth technique, spectroscopic properties and laser characteristics of new active media – crystals Er3+,Yb3+:Ca3RE2(BO3)4 (RE=Y, Gd). Calcium-yttrium Er3+,Yb3+:Ca3Y2(BO3)4 (CYB) and calcium-gadolinium ...
      2019-03-15
    • Er,Yb:ReGa3(BO3)4 (Re = Y, Gd) laser crystals 

      Maltsev, V. V.; Volkova, E. A.; Koporulina, E. V.; Mitina, D. D.; Kosorukov, V. L.; Jiliaeva, A. I.; Naprasnikov, D. A.; Gorbachenya, K. N.; Kisel, V. E. (БНТУ, 2023)
      Phase relationships in the ErxYbyY1-x-yGa3(BO3)4-Bi2O3-B2O3-(Y,Er,Yb)2O3–Ga2O3 and ErxYbyGd1-x-yGa3(BO3)4-Bi2O3-B2O3-(Gd,Er,Yb)2O3 – Ga2O3 (x = 0.02, y = 0.11 at.%) system were studied in the temperature range from 1000 to 900 оС. Multicomponent melt Bi2O3-Ga2O3-B2O3-(Y,Gd)2O3 were used as reasonable fluxes for high-temperature solution growth of ErxYbyR1-x-yGa3(BO3)4 (R = Y, Gd) ...
      2023-12-21
    • Femtosecond pulse generation with a diode-pumped Yb3+:YVO4 laser 

      Kisel, V. E.; Troshin, A. E.; Shcherbitsky, V. G.; Kuleshov, N. V.; Matrosov, V. N.; Matrosova, T. A.; Kupchenko, M. I.; Brunner, F.; Paschotta, R.; Morier-Genoud, F.; Keller, U. (Optical Society of America, 2005)
      A diode-pumped Yb:YVO4 laser has been passively mode locked for the first time, to our knowledge. 120 fs pulses with an average output power of 300 mW and a peak power as high as 14.5 kW are obtained by use of a semiconductor saturable-absorber mirror for passive mode locking. The optical spectrum has a 10 nm bandwidth (full width at half-maximum) and is centered at 1021 nm.
      2012-01-23
    • Femtosecond pulse operation of a Tm,Ho-codoped crystalline laser near 2 μm 

      Lagatsky, A. A.; Fusari, F.; Calvez, S.; Kurilchik, S. V.; Kisel, V. E.; Kuleshov, N. V.; Dawson, M. D.; Brown, C. T. A.; Sibbett, W. (Optical Society of America, 2010)
      We demonstrate, for the first time to our knowledge, femtosecond-regime mode locking of a Tm,Ho-codoped crystalline laser operating in the 2 μm spectral region. Transform-limited 570 fs pulses were generated at 2055 nm by a Tm,Ho:KY(WO4)2 laser that produced an average output power of 130 mW at a pulse repetition frequency of 118 MHz. Mode locking was achieved using an ion-implanted ...
      2012-01-23
    • Growth and spectroscopy of Er₀. ₀₁:KGd₀. ₂Yb₀. ₁₅Y₀. ₆₄(WO₄)₂ epitaxial layer 

      Dernovich, O. P.; Kurilchik, S. V.; Kisel, V. E.; Guretsky, S. A.; Kuleshov, N. V. (БНТУ, 2017)
      Growth and spectroscopy of Er₀. ₀₁:KGd₀. ₂Yb₀. ₁₅Y₀. ₆₄(WO₄)₂ epitaxial layer / O. P. Dernovich [et al.] // Новые направления развития приборостроения : материалы 10-й международной научно-технической конференции молодых ученых и студентов, Минск, 26−28 апреля 2017 г. : в 2 т. / Белорусский национальный технический университет ; редкол.: О. К. Гусев [и др.]. – Минск, 2017. – Т. ...
      2017-06-29
    • High efficient 12W diode-pumped actively Q-switched YB:KGD(WO4)2 laser 

      Kisel, V. E.; Rudenkov, A. S.; Kuleshov, N. V.; Pavlyuk, A. A. (BNTU, 2013)
      Compact diode-pumped actively Q-switched Yb:KGW laser is demonstrated with optical-to-optical efficiency of 50%. In a Z-shaped laser cavity configuration output power of 12.2 W with repetition rate up to 50 kHz and pulse duration of 10-24 ns was obtained. The maximum pulse peak power of 70 kW was achieved. The laser output beam profile was Gaussian up to maximum pump powers with ...
      2018-05-28
    • High Power Diode-Pumped Erbium Laser Emitting at Near 1.5 μm 

      Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Koporulina, E. V.; Volkova, E. A.; Maltsev, V. V.; Leonyuk, N. I.; Kuleshov, N. V. (БНТУ, 2021)
      Solid-state lasers emitting in the 1.5–1.6 μm spectral range are very promising for eye-safe laser range finding, ophthalmology, fiber-optic communication systems, and optical location. The aim of this work is the investigation of spectrosposcopic and laser properties of gain medium based on borate crystal for abovementioned lasers. Spectroscopic and laser properties of ...
      2021-07-06
    • Highly efficient continuous-wave diode-pumped Er, Yb:GdAl3(BO3)4 laser 

      Kisel, V. E.; Gorbachenya, K. N.; Yasukevich, A. S.; Maltsev, V. V.; Leonyuk, N. I.; Kuleshov, N. V. (Optical Society of America, 2013)
      We report the highly efficient continuous-wave diode-pumped laser operation of Er, Yb:GdAl3 BO3 4 crystal. Absorption and stimulated emission spectra, emission lifetimes, and efficiencies of energy transfer from Yb3 to Er3 ions were determined. A maximal output power of 780 mWwas obtained at 1531 nm at absorbed pump power of 4 W with slope efficiency of 26%.
      2016-01-05
    • Highly efficient ER,YB:YAL3(BO3)4 laser emitting in the 1.5-1.6 μM spectral range 

      Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Maltsev, V. V.; Leonyuk, N. I.; Kuleshov, N. V. (БНТУ, 2014)
      The highly efficient Er,Yb:YAl3(BO3)4 laser emitting in the 1.5-1.6 μm spectral range was demonstrated. A maximal output power of 1.6 W in CW and 2.7 W in QCW regimes with slope efficiency up to 40 % was obtained at 1522 nm.
      2018-05-11
    • In-Band Pumped Continuous-Wave Lasers Based on Ho:KY(WO4)2 Crystal and Ho:KGdYbY(WO4)2 Epitaxial Layer 

      Dernovich, O. P.; Gusakova, N. V.; Kisel, V. E.; Kravtsov, A. V.; Guretsky, S. A.; Pavlyuk, A. A.; Kuleshov, N. V. (БНТУ, 2020)
      2 μm lasers are in demand for a number of practical applications, such as environmental monitoring, remote sensing, medicine, material processing, and are also used as a pump sources for optical parametric generators. Crystals of double potassium tungstates doped with ions of rare-earth elements were shown to be promising materials both for the creation of classical solid-state ...
      2020-12-18