All-fiber, single-frequency, and single-mode Er3+:Yb3+ fiber amplifier at 1556 nm core-pumped at 1018 nm

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Omar de Varona
  • Michael Steinke
  • Jörg Neumann
  • Dietmar Kracht

Organisationseinheiten

Externe Organisationen

  • Laser Zentrum Hannover e.V. (LZH)
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Details

OriginalspracheEnglisch
Seiten (von - bis)2632-2635
Seitenumfang4
FachzeitschriftOptics letters
Jahrgang43
Ausgabenummer11
Frühes Online-Datum29 Mai 2018
PublikationsstatusVeröffentlicht - 1 Juni 2018

Abstract

Emerging applications, such as gravitational wave astronomy, demand single-frequency lasers with diffraction-limited emission at 1.5 μm. Fiber amplifiers have greatly evolved to fulfill these requirements. Hundreds of watts are feasible using large-mode-area and specialty fibers. However, their application in a few watts to tens of watts in monolithic systems is unnecessarily complex due to the poor commercial availability of fiber components and standard integration procedures. In this Letter we propose and experimentally demonstrate a novel and simple method to amplify single-frequency signals at 1.5 μm up to tens of watts by core-pumping single-mode Er3:Yb3 fiber amplifiers at 1018 nm. The proof-of-principle system is tested with different active fibers, lengths, and seed power levels. Over 11 W with an efficiency of more than 48% versus launched power is achieved. Additionally, performance degradation during operation was observed for which photodarkening due to P1 defects might be an explanation.

ASJC Scopus Sachgebiete

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All-fiber, single-frequency, and single-mode Er3+:Yb3+ fiber amplifier at 1556 nm core-pumped at 1018 nm. / de Varona, Omar; Steinke, Michael; Neumann, Jörg et al.
in: Optics letters, Jahrgang 43, Nr. 11, 01.06.2018, S. 2632-2635.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

de Varona O, Steinke M, Neumann J, Kracht D. All-fiber, single-frequency, and single-mode Er3+:Yb3+ fiber amplifier at 1556 nm core-pumped at 1018 nm. Optics letters. 2018 Jun 1;43(11):2632-2635. Epub 2018 Mai 29. doi: 10.1364/OL.43.002632
de Varona, Omar ; Steinke, Michael ; Neumann, Jörg et al. / All-fiber, single-frequency, and single-mode Er3+:Yb3+ fiber amplifier at 1556 nm core-pumped at 1018 nm. in: Optics letters. 2018 ; Jahrgang 43, Nr. 11. S. 2632-2635.
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AU - Kracht, Dietmar

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