Properties of GexAsySe1-x-y glasses for all-optical signal processing.
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.
Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Laser Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australia. amr111@rsphysse.anu.edu.au
Amrita
A
Prasad
Cong-Ji
CJ
Zha
Rong-Ping
RP
Wang
Anita
A
Smith
Steve
S
Madden
Barry
B
Luther-Davies