Femtosecond-laser-written microstructured waveguides in BK7 glass
Files
(Published version)
Date
2018
Authors
Chen, G.Y.
Piantedosi, F.
Otten, D.
Kang, Y.Q.
Zhang, W.Q.
Zhou, X.
Monro, T.M.
Lancaster, D.G.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Scientific Reports, 2018; 8(article no. 10377):1-7
Statement of Responsibility
Conference Name
Abstract
There is a defciency of low-loss microstructured waveguides that can be fabricated with a single laser-pass to minimize stress build-up, which can enable enhanced functionality and higher compactness for integrated optical devices. We demonstrate, for the first time, a series of multi-ring claddings each with a pair of cores in BK7 glass. Each waveguide was fabricated using only a single laser-pass at1MHz pulse repetition rate, 5mm/s translation speed, 250fs pulse width, over a set of pulse energies.We obtained the lowest-reported propagation loss of 0.062 dB/cm, measured at 1155nm wavelength from the waveguide written with 340nJ pulse energy. The maximum observed numerical aperture is0.020, measured at 1155nm wavelength from the waveguide written with 620nJ pulse energy. Suchwaveguides could be incorporated in integrated Raman laser platforms for biomedical applications.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2018 The Author(s) Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. (http://creativecommons.org/licenses/by/4.0/)