Ion-implanted diamond blade diced ridge waveguides in Pr:YLF
Optical characterization and small-signal gain measurement
Publication date
2025-04-30
Document type
Forschungsartikel
Author
Tanaka, Hiroki
Kränkel, Christian
Bányász, Istvan
Mikšová, Romana
Organisational unit
Publisher
MDPI
Series or journal
Applied Sciences
ISSN
Periodical volume
15
Periodical issue
9
Article ID
4956
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Abstract
Planar optical waveguides were fabricated in Pr:YLF crystals by ion implantation. In a further step, ridge waveguides were fabricated using precision diamond dicing. These enable strong light confinement and have propagation losses as low as 0.4 dB/cm. To study the influence of ion implantation on the spectroscopic properties, fluorescence and lifetime measurements were conducted in the ridge waveguides. Under blue pumping, small-signal optical gains of 6.5 dB/cm and 5 dB/cm were demonstrated at wavelengths of 607 nm and 639 nm, respectively. These results make ion-implanted ridge waveguides in Pr:YLF promising candidates for compact integrated lasers in the visible spectral region with high output powers in the watt range.
Description
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Version
Published version
Access right on openHSU
Metadata only access