Three-dimensional mid-infrared photonic circuits in chalcogenide glass.
Opt Lett
; 37(3): 392-4, 2012 Feb 01.
Article
in En
| MEDLINE
| ID: mdl-22297363
ABSTRACT
We report the fabrication of single-mode buried channel waveguides for the whole mid-IR transparency range of chalcogenide sulphide glasses (λ ≤ 11 µm), by means of direct laser writing. We have explored the potential of this technology by fabricating a prototype three-dimensional three-beam combiner for future application in stellar interferometry that delivers a monochromatic interference visibility of 99.89% at 10.6 µm and an ultrahigh bandwidth (3-11 µm) interference visibility of 21.3%. These results demonstrate that it is possible to harness the whole transparency range offered by chalcogenide glasses on a single on-chip instrument by means of direct laser writing, a finding that may be of key significance in future technologies such as astrophotonics and biochemical sensing.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Photons
/
Chalcogens
/
Glass
/
Infrared Rays
Language:
En
Journal:
Opt Lett
Year:
2012
Document type:
Article
Affiliation country:
United kingdom
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA