Fabrication of tapers with Gaussian refractive-index profile in azo polymers
| Autor: | Alireza Gharavi, Khadije Miar-Abas-Kiani, Gholam-Mohamad Parsanasab |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Quantum optics Materials science Fabrication Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Polymer Refractive index profile Waveguide (optics) Wavelength Optics chemistry business Intensity (heat transfer) Power density |
| Zdroj: | Applied Physics B. 111:429-432 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-013-5352-2 |
| Popis: | We have fabricated a refractive-index-tapered waveguide by exposing an azo polymer film to a 532-nm wavelength laser beam focused to about 60-μm spot size at the film with no surface deformation. The converging ability of the taper (ability to increase intensity along the taper) was measured to be 5 db/cm while the loss was 0.39 db/cm. According to the data obtained, the power density increases along the taper while loss is nearly constant along the tapered and non-tapered segments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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