Zobrazeno 1 - 10
of 19
pro vyhledávání: '"M Yu, Koptev"'
Publikováno v:
Applied optics. 61(32)
This paper presents an experimental study of broadband mid-IR amplification that is carried out, for the first time, to the best of our knowledge, in an erbium-doped tungsten tellurite fiber. A simple, robust supercontinuum source based on a tapered
Autor:
M. Yu. Koptev, A. N. Morozov, K. V. Shatilova, S. V. Muravyev, A. E. Zapryalov, M. E. Likhachev, A. V. Kim
Publikováno v:
Applied optics. 61(16)
An all-fiber high-power erbium-doped fiber laser (EDFL) source generating optical pulses from 200 µs to 5 ms with a stable rectangular envelope for fractional photo-rejuvenation is proposed and experimentally demonstrated. A master oscillator power
Autor:
Mikhail E. Likhachev, V. V. Velmiskin, Denis S. Lipatov, A. E. Levchenko, Mikhail M. Bubnov, A. V. Kim, Elena A. Anashkina, S. V. Muravyev, Alexey V. Andrianov, M. Yu. Koptev
Publikováno v:
Quantum Electronics. 49:1093-1099
We consider a fibre laser system generating ∼10-μJ, ∼500-fs pulses with a peak power of ∼10 MW at a repetition rate of 100 kHz and emission wavelength of 1.56 μm. The system is based on a master oscillator – power amplifier configuration. T
Publikováno v:
Quantum Electronics. 49:322-329
Autor:
Alexey V. Andrianov, S E Motorin, A. A. Sorokin, M. Yu. Koptev, S. V. Muravyev, A. V. Kim, Elena A. Anashkina, Vitaly V. Dorofeev, Surinder Singh
Publikováno v:
Quantum Electronics. 48:1118-1127
Publikováno v:
Quantum Electronics. 46:387-391
We have investigated a new fibre laser configuration for the generation of ultrashort pulses at a repetition rate far exceeding the fundamental cavity frequency. The laser configuration includes a nonlinear amplifying mirror as an artificial saturabl
Publikováno v:
2018 International Conference Laser Optics (ICLO).
Nonlinear spatiotemporal dynamics of femtosecond pulses in a hexagonal 7-core silica fiber pumped by a sub-uJ 370 fs Er:fiber CPA system was studied. Two orders of magnitude contrast enhancement of the pulses trapped in the central core of a multicor
Autor:
A N Gur'yanov, Alexey V. Andrianov, Svetlana S. Aleshkina, Mikhail E. Likhachev, Denis S. Lipatov, Mikhail M. Bubnov, Arkady Kim, Sergey L. Semjonov, V. V. Velmiskin, Konstantin K. Bobkov, A. E. Levchenko, S. V. Muravyev, M. Yu. Koptev
Publikováno v:
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF).
In this work we demonstrate possibility of scaling peak power to MW level (before compression) using end-pumped monolithic amplifier based on a novel type of large mode area fibers, Yb-doped tapered fiber.
Autor:
Sergey L. Semjonov, Konstantin K. Bobkov, Denis S. Lipatov, A. E. Levchenko, Arkady Kim, S. V. Muravyev, A N Gur'yanov, Svetlana S. Aleshkina, Mikhail E. Likhachev, A.N. Denisov, A Yu Laptev, Elena A. Anashkina, M. Yu. Koptev, Mikhail M. Bubnov, Alexey V. Andrianov
Publikováno v:
Quantum Electronics. 45:443-450
We report a new ytterbium-doped active tapered fibre used in the output amplifier stage of a fibre laser system for the generation of megawatt peak power ultrashort pulses in the microjoule energy range. The tapered fibre is single-mode at its input
Publikováno v:
2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC).
New functionalities in ultrafast photonics are inherently linked to the development of phase-sensitive measurement techniques. While free-space ultrafast metrology of optical pulses is a mature field, the development of simple, robust, and cost-effec