Next Article in Journal
The Structural Dimorphism of Lanthanum Oxide Fluoride Selenide La2OF2Se
Previous Article in Journal
Utilization of a CO2 Storage Material: Shape-Controlled Preparation of CaCO3 Microspheres
Previous Article in Special Issue
Femtosecond Laser Pulses Amplification in Crystals
Open AccessArticle

Pulse-Propagation Modeling and Experiment for Femtosecond-Laser Writing of Waveguide in Nd:YAG

1
Chester F. Carlson Center for Imaging Science, Rochester Institute of Technology, Rochester, NY 14623, USA
2
Aktiwave LLC, 150 Lucius Gordon Dr., Rochester, NY 14586, USA
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(8), 434; https://doi.org/10.3390/cryst9080434
Received: 19 July 2019 / Revised: 9 August 2019 / Accepted: 16 August 2019 / Published: 20 August 2019
(This article belongs to the Special Issue Laser Crystals)
In this work, unidirectional pulse propagation equation (UPPE) modeling is performed to study the nonlinear laser-mater interaction in silicon and Nd:Y3Al5O12 (Nd:YAG) crystals. The simulation results are validated with reported experimental results for silicon and applied to Nd:YAG crystals with experimental validation. Stress-induced waveguides are written in Nd:YAG crystals using 515 nm, 300 fs pulses at a 1 kHz repetition rate. Waveguides having a mean propagation loss of 0.21 ± 0.06 dB/cm are obtained, which is lower than the previous reported values for Type-II waveguides written in Nd:YAG crystals. The modeling and experimental results consistently show that the modification (waveguide track) depth increases with input energy. A detailed analysis is presented to control the modal properties of the waveguide in the context of UPPE simulation. View Full-Text
Keywords: femtosecond laser writing; nonlinear pulse propagation; stress-induced waveguide writing; Nd:YAG crystal femtosecond laser writing; nonlinear pulse propagation; stress-induced waveguide writing; Nd:YAG crystal
Show Figures

Figure 1

MDPI and ACS Style

Feng, T.; Sahoo, P.K.; Arteaga-Sierra, F.R.; Dorrer, C.; Qiao, J. Pulse-Propagation Modeling and Experiment for Femtosecond-Laser Writing of Waveguide in Nd:YAG. Crystals 2019, 9, 434.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop