Optimizing fiber component manufacturing by observing the modal composition and PER in real-time

authored by
Nils Haverland, Eike Brockmüller, Fabian Kranert, Jörg Neumann, Dietmar Kracht
Abstract

Fiber-based laser and amplifier systems provide high output power, excellent beam quality and easy handling by utilizing a setup consisting of fiber components like signal-pump combiners and cladding-light strippers. Large-mode-area fibers are used in these systems to improve the performance while maintaining single-mode operation. Compared to pure single-mode fibers, these fibers always guide higher order modes, which can have an impact on the system’s performance. An instrument was developed based on the S2-method, which is able to perform high-speed, in-line measurements of the modal composition and polarization extinction ratio. This device is used to monitor the fiber component manufacturing process using large-mode-area fibers in real-time, enabling us to improve critical process steps and, thereby, optimize the manufactured components, namely signal-pump combiners and fiber endcaps.

Organisation(s)
QuantumFrontiers
External Organisation(s)
Laser Zentrum Hannover e.V. (LZH)
Type
Conference contribution
Publication date
12.03.2024
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications, Applied Mathematics, Electrical and Electronic Engineering
Electronic version(s)
https://doi.org/10.1117/12.3000926 (Access: Closed)