Miniaturized thin-film filters to connect multiple self-written waveguides

authored by

A. Günther, K. Kushwaha, A. K. Rüsseler, F. Carstens, D. Ristau, W. Kowalsky, B. Roth

Abstract

Self-written waveguides (SWWs) have been well investigated within the last decades. In most cases, they are used as low-loss coupling structures, i.e., to connect buried optical structures in photonic integrated circuits. In this work, we extend the field of possible applications for SWWs by embedding a novel thin-film filter to split the beam and connect multiple output ports simultaneously. The multilayer design of the dielectric filter can be customized to enable its application as a dichroic beamsplitter for photonic networks. The embedded thin-film filter was characterized in detail and used to connect an additional optical sensing element, which is also based on SWWs, to demonstrate its usability for measurement of physical quantities.

Organisation(s)

Hannover Centre for Optical Technologies (HOT)
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Institute of Quantum Optics

External Organisation(s)

Technische Universität Braunschweig
Laser Zentrum Hannover e.V. (LZH)

Type

Article

Journal

Journal of Optics (United Kingdom)

Volume

25

ISSN

2040-8978

Publication date

06.2023

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1088/2040-8986/acca91 (Access: Open)