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Q: Fachverband Quantenoptik und Photonik

Q 40: Poster – Photonics

Q 40.19: Poster

Mittwoch, 4. März 2026, 17:00–19:00, Philo 1. OG

Fiber Fabry-Perot Cavities: Design, Arrays, and Interfaces — •Jana Blechmann, Daniel Stachanow, Lukas Tenbrake, Florian Giefer, Gian-Marco Schnueriger, Hannes Pfeifer, and Sebastian Hofferberth — Institute of Applied Physics, University of Bonn, Germany

Fiber Fabry-Perot cavities (FFPCs) offer many advantages, including their miniature size and robustness, in applications like sensing. In the Bonn Fiber Lab, we specialize in the precise fabrication and analysis of FFPCs and the integration with fiber interfaces.

This poster will showcase three ongoing projects, focusing on both the development of fiber cavities and their applications.

We will present our current research on a novel, monolithic, passively stable, fiber-based crossed-cavity, including the manufacturing of fiber mirrors with the in-house shooting setup.

Further, we will showcase our recent steps in manufacturing cavity arrays on optical multicore fibers. Among the numerous possible applications, we aim to use them as an interface for mechanical metamaterials.

We will also present our latest progress in the investigation of interfaced micro-mechanical resonators fabricated through 3D direct laser writing, covering techniques for optimizing Q-factors, such as dissipation dilution and the use of glassy structures with inherently higher intrinsic Q.

Keywords: Fiber Cavity; Fabry-Perot; Cross Cavity; Multicore Fibers; Direct Laser Writing