Dr. Konstantin K. Bobkov Profile

Dr. Konstantin K. Bobkov

Research Fellow at Optoelectronics Research Ctr

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 25 May 2022 Poster + Paper

All-fiber high-peak power chirped pulse amplifier based on a triple-cladding fiber for pulse stretching and a highly-Yb-doped pedestal fiber for pulse amplification

Konstantin Bobkov, Denis Lipatov, Mikhail Salganskiy, Dmitry Khydiakov, Alexey Guryanov, Mikhail Likhachev

Proceedings Volume 12142, 121421I (2022) https://doi.org/10.1117/12.2624502

KEYWORDS: Picosecond phenomena, Refractive index, Fiber amplifiers, Cladding, Reflectivity, Optical amplifiers, Medium wave, Glasses, Diffraction gratings, Optical design

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Proceedings Article | 25 May 2022 Presentation + Paper

Er-doped tapered fiber amplifier for high peak power sub-ns pulse amplification

Maxim Khudyakov, Andrey Levchenko, Vladimir Velmiskin, Konstantin Bobkov, Svetlana Aleshkina, Mikhail Bubnov, Mikhail Yashkov, Aleksey Gur'yanov, Leonid Kotov, Mikhail Likhachev

Proceedings Volume 12142, 121420S (2022) https://doi.org/10.1117/12.2624393

KEYWORDS: Erbium, Cladding, Optical amplifiers, Ions, Fiber amplifiers, Glasses, Scanning probe microscopy, Aluminum, Absorption, Silica

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Proceedings Article | 18 April 2021 Presentation + Paper

Ultra-highly Yb-doped silica-based optical fibers

Denis Lipatov, Mikhail Yashkov, Alexey Abramov, Andrey Umnikov, Alexey Guryanov, Konstantin Bobkov, Mikhail Bubnov, Mikhail Likhachev

Proceedings Volume 11773, 117730G (2021) https://doi.org/10.1117/12.2592505

KEYWORDS: Optical fibers, Silica, Ytterbium, Glasses, Fiber lasers, Resonators, Optical amplifiers, Fiber amplifiers, Absorption, Reliability

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Proceedings Article | 18 April 2021 Presentation + Paper

Active tapered fibers for high peak power fiber lasers

Konstantin Bobkov, Svetlana Aleshkina, Maxim Khudyakov, Denis Lipatov, Mikhail Likhachev

Proceedings Volume 11773, 117730F (2021) https://doi.org/10.1117/12.2592504

KEYWORDS: Optical fibers, Fiber lasers, Cladding, Fiber amplifiers, Ultrafast phenomena, Pulsed fiber lasers, Nonlinear optics, Laser damage threshold

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Er-Yb co-doped aluminosilicate glass matrix for spectral filtering with a very high absorption in the 0.9-1.0 um spectral range

Mikhail Yashkov, Alexey Abramov, Nikolay Vechkanov, Alexey Guryanov, Konstantin Bobkov, Svetlana Aleshkina, Tatyana Kashaykina, Mikhail Khudyakov, Mikhail Bubnov, Mikhail Likhachev

Proceedings Volume 11682, 116821F (2021) https://doi.org/10.1117/12.2577917

KEYWORDS: Absorption, Glasses, Optical filters, Absorption filters, Ytterbium, Erbium, Ions, Thulium, Single mode fibers

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Proceedings Article | 21 February 2020 Presentation + Paper

Generation of picosecond pulses with 150 W of average and 0.92 MW of peak power from an Yb-doped tapered fiber MOPA

Konstantin Bobkov, Andrey Levchenko, Tatiana Kochergina, Svetlana Aleshkina, Mikhail Bubnov, Denis Lipatov, Aleksandr Yu. Laptev, Alexey Guryanov, Mikhail Likhachev

Proceedings Volume 11260, 1126020 (2020) https://doi.org/10.1117/12.2546650

KEYWORDS: Fiber amplifiers, Ytterbium, High power fiber amplifiers, Picosecond lasers

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Proceedings Article | 27 February 2019 Paper

Single-mode large-mode-area Er-Yb fiber

Maxim Khudyakov, Aleksey Lobanov, Denis Lipatov, Konstantin Bobkov, Svetlana Aleshkina, Tatyana Kochergina, Mikhail Bubnov, Alexey Abramov, Nikolay Vechkanov, Aleksey Guryanov, Mikhail Likhachev

Proceedings Volume 10914, 109141R (2019) https://doi.org/10.1117/12.2508547

KEYWORDS: Ytterbium, Erbium, Glasses, Fluorine, Ions, Fiber lasers, Cladding, Silica, Absorption, Doping

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Proceedings Article | 26 February 2018 Presentation + Paper

Monolithic diffraction-limited 976-nm laser based on saddle-shaped photo darkening-free Yb-doped fiber

Svetlana Aleshkina, Denis Lipatov, Andrei Levchenko, Oleg Medvedkov, Konstantin Bobkov, Mikhail Bubnov, Alexei Guryanov, Mikhail Likhachev

Proceedings Volume 10512, 105121R (2018) https://doi.org/10.1117/12.2289918

KEYWORDS: Cladding, Fiber lasers, Fiber Bragg gratings, Optical fibers, Diodes, Laser development, Ytterbium, Ions, Refractive index, Absorption

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Proceedings Article | 22 February 2017 Presentation + Paper

MW peak power diffraction limited monolithic Yb-doped tapered fiber amplifier

Konstantin Bobkov, Maxim Yu. Koptev, Andrei Levchenko, Svetlana Aleshkina, Sergey Semenov, Alexander Denisov, Mikhail Bubnov, Denis Lipatov, Alexander Yu. Laptev, Alexey Guryanov, Elena Anashkina, Sergey Muravyev, Alexey Andrianov, Arkady Kim, Mikhail Likhachev

Proceedings Volume 10083, 1008309 (2017) https://doi.org/10.1117/12.2253270

KEYWORDS: Fiber amplifiers, Amplifiers, Medium wave, Absorption, Cladding, Ytterbium, Silica, Ions, Picosecond phenomena, Refractive index

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Proceedings Article | 22 February 2017 Presentation + Paper

The first experimental observation of long-term mode degradation in high peak power Yb-doped amplifiers

Konstantin Bobkov, Mikhail Bubnov, Svetlana Aleshkina, Mikhail Likhachev

Proceedings Volume 10083, 100830T (2017) https://doi.org/10.1117/12.2251734

KEYWORDS: Step index fibers, Fiber lasers, Refractive index, Diodes, Modulation, Ytterbium, Aluminum, Glasses, Optical amplifiers, Fiber amplifiers

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Proceedings Article | 11 March 2016 Paper

5.5 W monolitic single-mode fiber laser and amplifier operating near 976 nm

Svetlana Aleshkina, Mikhail Likhachev, Denis Lipatov, Oleg Medvedkov, Konstantin Bobkov, Mikhail Bubnov, Alexei Guryanov

Proceedings Volume 9728, 97281C (2016) https://doi.org/10.1117/12.2209610

KEYWORDS: Optical fibers, Fiber lasers, Fiber amplifiers, Optical amplifiers, Cladding, Glasses, Fiber Bragg gratings, Single mode fibers, Semiconductor lasers, Refractive index

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Proceedings Article | 11 March 2016 Paper

Monolithic high peak-power coherent Doppler lidar system

Leonid Kotov, Albert Töws, Alfred Kurtz, Konstantin Bobkov, Svetlana Aleshkina, Mikhail Bubnov, Denis Lipatov, Alexey Guryanov, Mikhail Likhachev

Proceedings Volume 9728, 97282U (2016) https://doi.org/10.1117/12.2213165

KEYWORDS: Amplifiers, LIDAR, Fiber amplifiers, Phase modulation, Glasses, Refractive index, Wind measurement, Birefringence, Erbium lasers, Optical amplifiers, Polarization, Collimators, Oscillators, Feedback control

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Proceedings Article | 4 March 2015 Paper

Monolithic sub-MW peak power tapered ytterbium-doped fiber amplifier

Konstantin Bobkov, Maxim Koptev, Andrei Levchenko, Svetlana Aleshkina, Segrey Semenov, Alexander Denisov, Mikhail Bubnov, Denis Lipatov, Alexander Laptev, Alexey Guryanov, Elena Anashkina, Sergey Muravyev, Alexey Andrianov, Arkady Kim, Mikhail Likhachev

Proceedings Volume 9344, 93440S (2015) https://doi.org/10.1117/12.2079364

KEYWORDS: Fiber amplifiers, Medium wave, Cladding, Silica, Optical amplifiers, Fiber lasers, Structured optical fibers, Glasses, Ytterbium, Oxides

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