Abstract
Silica based planar waveguides co-doped with Er3+, TiO2 and Al2O3 have been fabricated on SOS (silica on silicon) by a sol-gel process using multiple spin-coating and rapid thermal processing (RTP). Their characteristics, such as refractive index, thickness photoluminescence (PL), FTIR (Furior Transform infrared spectrum), XRD (X-ray diffraction), and surface roughness are investigated. The relatively strong PL emitted from planar waveguide has been got using the recipe of 93SiO2: 7TiO2: 10Al2O3: 0.5 Er2O3 (mole ratio). The presence of O2 during annealing in RTP is indispensable for sol-gel waveguide to guide light. Both the average refractive index and thickness of multilayer film increase as the layer number increases.
Original language | English |
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Pages (from-to) | 116-121 |
Number of pages | 6 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3622 |
Publication status | Published - 1999 |
Externally published | Yes |
Event | Proceedings of the 1999 Rare-Earth-Doped Materials and Devices III - San Jose, CA, USA Duration: Jan 27 1999 → Jan 28 1999 |
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering