Highly-integrated signal and pump combiner in chirally-coupled-core fibers

authored by
Sven Hochheim, Eike Brockmuller, Peter Wessels, Michael Steinke, Joona Koponen, Tyson Lowder, Steffen Novotny, Jorg Neumann, Dietmar Kracht
Abstract

Integrated fiber components enable compact and robust laser systems but are usually not available with specialty fibers. However, specialty fibers allow power scaling of fiber lasers and amplifiers with all advantages of these fiber designs. In this context, chirally-coupled-core fibers show promising properties for optical fiber components. In this paper, we present the development of a highly-integrated signal and pump combiner in chirally-core-fibers using a side-pumping technology. Combining up to four fiber-coupled pump diodes, a pump-light limited power handling of 600W can be achieved with an efficiency of 78%. The combiner was tested in a side-pumped single-frequency all-fiber amplifier but can also be implemented in almost any fiber laser or amplifier.

External Organisation(s)
Laser Zentrum Hannover e.V. (LZH)
nLIGHT
Type
Article
Journal
Journal of lightwave technology
Volume
39
Pages
7246-7250
No. of pages
5
ISSN
0733-8724
Publication date
13.09.2021
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.2021.3111993 (Access: Open)