First- and second-order Bragg gratings in single-mode planar waveguides of chalcogenide glasses
Abbreviated Journal Title
J. Lightwave Technol.
Bragg grating; Bragg wavelength; chalcogenide glasses; index modulation; planar waveguide; photodarkening; transmission function; AMORPHOUS AS2S3 FILMS; CHANNEL WAVE-GUIDES; HOLOGRAPHIC GRATINGS; OPTICAL-FIBER; FABRICATION; PHOTOSENSITIVITY; LASER; ABSORPTION; COUPLER; FILTERS; Engineering, Electrical & Electronic; Optics; Telecommunications
First- and second-order Bragg reflectors at telecommunication wavelength (1.5 mu m) were fabricated in single-mode monolayer (As2S3) and multilayer (As-S-Se/As-S) chalcogenide glass (ChG) planar waveguides with near bandgap illumination using an interferometric technique. Reflectivities as high as 90% near 1555 nm, and index modulations up to 3 x 10(-4) were achieved, The volume photodarkening effect is the principal mechanism involved in the formation of the Bragg gratings.
Journal of Lightwave Technology
"First- and second-order Bragg gratings in single-mode planar waveguides of chalcogenide glasses" (1999). Faculty Bibliography 1990s. 2825.