Single-frequency 336W spliceless all-fiber amplifier based on a chirally-coupled-core fiber for the next generation of gravitational wave detectors

verfasst von
Sven Hochheim, Eike Brockmuller, Peter Wessels, Joona Koponen, Tyson Lowder, Steffen Novotny, Benno Willke, Jorg Neumann, Dietmar Kracht
Abstract

Specialty fibers such as chirally-coupled-core fibers show a high potential for further power scaling of single-frequency fiber amplifiers. For the first time, we demonstrate a spliceless all-fiber amplifier, where all optical components are directly integrated in a single Yb-doped 3C<sup></sup>-fiber. Such a spliceless laser design enables a compact and robust architecture using specialty fibers, while maintaining excellent beam properties. At an output power of 336W operating at 1064nm, a fundamental mode content of 90.4% at a polarization extinction ratio above 13dB was measured only limited by the onset of SBS without any impact of transverse mode instabilities or other parasitic effects. This work emphasizes the field of applications of 3C<sup></sup>-fibers in high-power laser systems.

Organisationseinheit(en)
Institut für Gravitationsphysik
QuantumFrontiers
Externe Organisation(en)
Laser Zentrum Hannover e.V. (LZH)
nLIGHT Corporation, Lohja
nLIGHT
Typ
Artikel
Journal
Journal of lightwave technology
Band
40
Seiten
2136 - 2143
Anzahl der Seiten
8
ISSN
0733-8724
Publikationsdatum
10.12.2021
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Atom- und Molekularphysik sowie Optik
Elektronische Version(en)
https://doi.org/10.1109/JLT.2021.3133814 (Zugang: Offen)