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

authored by: 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-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-fibers in high-power laser systems.
Organisation(s): Institute of Gravitation Physics
QuantumFrontiers
External Organisation(s): Laser Zentrum Hannover e.V. (LZH)
nLIGHT Corporation, Lohja
nLIGHT
Type: Article
Journal: Journal of lightwave technology
Volume: 40
Pages: 2136 - 2143
No. of pages: 8
ISSN: 0733-8724
Publication date: 10.12.2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.1109/JLT.2021.3133814 (Access: Open)

BibTeX

@article{7fd7fac3b1f34b70865f284bb933a940,
title = "Single-frequency 336W spliceless all-fiber amplifier based on a chirally-coupled-core fiber for the next generation of gravitational wave detectors",
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-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-fibers in high-power laser systems.",
keywords = "chirally-coupledcore fiber, Gravitational wave detector, Isolators, Laser beams, Laser modes, Optical polarization, Optical pumping, Power generation, Pump lasers, signal and pump combiner, Chirally-coupled-core fiber, gravitational wave detector",
author = "Sven Hochheim and Eike Brockmuller and Peter Wessels and Joona Koponen and Tyson Lowder and Steffen Novotny and Benno Willke and Jorg Neumann and Dietmar Kracht",
note = "Funding Information: This work was supported in part by the Max-Planck-Institute for Gravitational Physics, Hanover, Germany, and in part by the Deutsche Forschungsgemeinschaft, DFG, German Research Foundation, under Germany's Excellence Strategy - EXC 2123 QuantumFrontiers under Grant 390837967.",
year = "2021",
month = dec,
day = "10",
doi = "10.1109/JLT.2021.3133814",
language = "English",
volume = "40",
pages = "2136 -- 2143",
journal = "Journal of lightwave technology",
issn = "0733-8724",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "7",
}