Substrate-free miniaturized thin-film filters for single-element coarse wavelength division multiplexing fibers

Autor: Anna K. Rüsseler, Philipp Gehrke, Florian Carstens, Gerd-A. Hoffmann, Guido Schönsee, Axel Thiel, Martina Vitt, Andreas Wienke, Detlev Ristau
Rok vydání: 2023
Předmět:
Zdroj: Applied Optics. 62:B188
ISSN: 2155-3165
1559-128X
DOI: 10.1364/ao.478083
Popis: We have created high-precision, miniaturized, substrate-free filters, based on ion beam sputtering on a sacrificial substrate. The sacrificial layer is cost efficient and environmentally friendly and can be dissolved using only water. We demonstrate an improved performance compared to filters on thin polymer layers from the same coating run. With these filters, a single-element coarse wavelength division multiplexing transmitting device for telecommunication applications can be realized by inserting the filter between fiber ends.
Databáze: OpenAIRE