Absorption loss and photorefractive-index changes in Ti:LiNbO(3)crystals and waveguides
| Autor: | A. A. Ballman, Alastair M. Glass, Ivan P. Kaminow, D. H. Olson |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Materials science
genetic structures business.industry Materials Science (miscellaneous) Transmission loss Physics::Optics Photorefractive effect Substrate (electronics) Industrial and Manufacturing Engineering Pyroelectricity Crystal Wavelength Optics Impurity Condensed Matter::Superconductivity sense organs Crystal optics Business and International Management business |
| Zdroj: | Applied optics. 19(2) |
| ISSN: | 1559-128X |
| Popis: | Measurement of optical absorption loss and photorefractive sensitivity (optically induced index changes) in Ti-diffused waveguides and bulk Ti-doped single crystals are reported. The absorption loss of strip guides is found to be 0.3 dB/cm at 0.633 microm, and this is expected to decrease at longer wavelengths. The results demonstrate that Ti impurities do not contribute to the absorption loss or to the photorefractive-index changes directly, rather these parameters are determined by impurities in the substrate crystal. A simple pyroelectric method for electrical adjustment of the optical input coupling is also reported. |
| Databáze: | OpenAIRE |
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