Er-Doped Tapered Fiber Amplifier for High Peak Power Sub-ns Pulse Amplification

Maksim M. Khudyakov; Andrei E. Levchenko; Vladimir V. Velmiskin; Konstantin K. Bobkov; Svetlana S. Aleshkina; Mikhail M. Bubnov; Mikhail V. Yashkov; Aleksei N. Gur’yanov; Leonid V. Kotov; Mikhail E. Likhachev

doi:10.3390/photonics8120523

Photonics (Nov 2021)

Er-Doped Tapered Fiber Amplifier for High Peak Power Sub-ns Pulse Amplification

Maksim M. Khudyakov,
Andrei E. Levchenko,
Vladimir V. Velmiskin,
Konstantin K. Bobkov,
Svetlana S. Aleshkina,
Mikhail M. Bubnov,
Mikhail V. Yashkov,
Aleksei N. Gur’yanov,
Leonid V. Kotov,
Mikhail E. Likhachev

Affiliations

Maksim M. Khudyakov: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Andrei E. Levchenko: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Vladimir V. Velmiskin: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Konstantin K. Bobkov: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Svetlana S. Aleshkina: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Mikhail M. Bubnov: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Mikhail V. Yashkov: Institute of Chemistry of High Purity Substances of the Russian Academy of Sciences, 49 Tropinin Street, 603950 Nizhny Novgorod, Russia
Aleksei N. Gur’yanov: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia
Leonid V. Kotov: James C. Wyant College of Optical Sciences, University of Arizona, 1630 E. University Blvd, Tucson, AZ 85721-0094, USA
Mikhail E. Likhachev: Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov Street, 119333 Moscow, Russia

DOI: https://doi.org/10.3390/photonics8120523
Journal volume & issue: Vol. 8, no. 12
p. 523

Abstract

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A tapered Er-doped fiber amplifier for high peak power pulses amplification has been developed and tested. The core diameter changed from 15.8 µm (mode field diameter (MFD) 14.5 µm) to 93 µm (MFD 40 µm) along 3.7 m maintaining single-mode performance at 1555 nm (according to the S2-method, the part of the power of high-order modes does not exceed 1.5%). The amplification of 0.9 ns pulses with spectral width below 0.04 nm up to a peak power above 200 kW (limited by self-phase modulation) with a slope pump-to-signal conversion efficiency of 15.6% was demonstrated.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

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