E. Flück, F. Horst, et al.
IEEE Photonics Technology Letters
Negative refractive index changes of up to 1.7 ×10-3 have been induced by 248 nm excimer laser light in planar germanium-free SiON waveguides. Highly temperature-stable 4OdB Bragg gratings with a length of 8mm have been written. A novel mechanism of photosensitisation was used to create the high-index changes.
E. Flück, F. Horst, et al.
IEEE Photonics Technology Letters
A. Catana, R.F. Broom, et al.
Journal of Crystal Growth
R. Germann
IEE/LEOS Summer Topical Meetings 1991
B.J. Offrein, F. Horst, et al.
IEEE Photonics Technology Letters