Open AccessProperties of Ge_xAs_ySe_1-x-y glasses for all-optical signal processing
Author(s) -
Amrita Prasad,
Congji Zha,
Rongping Wang,
Anita Smith,
Steve Madden,
Barry LutherDavies
Publication year - 2008
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.16.002804
Subject(s) - chalcogenide , germanium , materials science , optics , chalcogenide glass , refractive index , band gap , optoelectronics , physics , silicon
We present a systematic study of Ge(x)As(y)Se(1-x-y) bulk chalcogenide glasses to determine the best composition for fabricating all-optical devices. The dependence of physical parameters such as the band-gap, glass transition temperature and third order optical nonlinearity (n(2)) on composition has been studied and a relation between the bond-structure and elevated linear loss levels in high Germanium glasses has been identified. It is found that glasses with 11<x<13 % are most suitable for all-optical devices.