Analysis of the thermal behavior of self-written waveguides

authored by

Axel Günther, Murat Baran, Roopanshu Garg, Bernhard Roth, Wolfgang Kowalsky

Abstract

Photonic elements are among the key components of various integrated systems for measurement, sensing and data transmission. Thus, to realize more complex systems, connecting different such elements reliably with each other gains more and more interest. Self-written waveguides (SWWs) represent a promising class of optical interconnects and might, in addition, even be suited for further functional applications. Here, we investigate the thermal behaviour of SWWs and demonstrate that a change in temperature can be detected with an SWW-connected fiber by monitoring the transmitted light only. In contrast to the usual behaviour of polymers, we find conditions where the transmitted intensity through the SWW increases as the temperature is raised which is counter-intuitive. By studying the thermal behaviour of SWWs, we create a firm basis for their potential use as simple, robust and versatile sensing elements in the future.

Organisation(s)

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

External Organisation(s)

Technische Universität Braunschweig

Type

Review article

Journal

Optics and lasers in engineering

Volume

151

No. of pages

6

ISSN

0143-8166

Publication date

04.2022

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Mechanical Engineering, Electrical and Electronic Engineering

Electronic version(s)

https://doi.org/10.1016/j.optlaseng.2021.106922 (Access: Open)