Title :
Characterization of waveguide and grating formation in As2 S3
Author :
Guo, J.P. ; Ramachandran, S. ; Bishop, S.G. ; Brady, D.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
31 Oct-3 Nov 1994
Abstract :
Photodarkening in the chalcogenide glass As2S3 makes it attractive for applications in integrated optics and data storage. Various optical devices can be fabricated using the laser-induced change of refractive index in this material. Waveguides, directional couplers, and holographic gratings have been fabricated on thin films and bulk samples of As2S3. This paper reports studies of the dynamics of waveguide and grating formation on the surface of bulk As2S3. Spatial and temporal characteristics of laser-induced refractive index changes are described. Several different materials effects are shown to contribute to the index modulation
Keywords :
arsenic compounds; As2S3; bulk samples; chalcogenide glass; grating formation; holographic gratings; index modulation; integrated optics; laser-induced change; laser-induced refractive index changes; optical data storage; optical directional couplers; photodarkening; refractive index; spatial characteristics; temporal characteristics; thin films; waveguide formation; Glass; Gratings; Integrated optics; Laser transitions; Memory; Optical materials; Optical waveguides; Photochromism; Refractive index; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1994. LEOS '94 Conference Proceedings. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1470-0
DOI :
10.1109/LEOS.1994.586362
