Open AccessOn the use of the Type I and II scheme for classifying ultrafast laser direct-write photonics
Author(s) -
Simon Gross,
Mykhaylo Dubov,
Michael J. Withford
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.007767
Subject(s) - fiber bragg grating , optics , photonics , ultrashort pulse , laser , waveguide , materials science , grating , fiber laser , optoelectronics , computer science , physics
The use of the Type I and Type II scheme, first introduced and used by fiber Bragg grating researchers, has recently been adopted by the ultrafast laser direct-write photonics community to classify the physical geometry of waveguides written into glasses and crystals. This has created confusion between the fiber Bragg grating and direct-write photonics community. Here we propose a return to the original basis of the classification based on the characteristics of the material modification rather than the physical geometry of the waveguide.