Photorefractive Properties of Ce-Doped Strontium Barium Niobate Single-Crystal Fibers at 830 nm
| Autor: | Masami Miyagi, Iwao Hatakeyama, Sugiyama Yasuyuki, Shogo Yagi |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Materials science
Optical fiber business.industry Doping General Engineering Analytical chemistry General Physics and Astronomy Nonlinear optics Crystal growth Strontium barium niobate Photorefractive effect Diffraction efficiency law.invention chemistry.chemical_compound Optics chemistry law business Single crystal |
| Zdroj: | Japanese Journal of Applied Physics. 33:L1417 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.33.l1417 |
| Popis: | We have successfully grown strontium barium niobate (SBN) single-crystal fibers doped with up to 0.5 wt% of Ce by the laser-heated pedestal growth method. Their photorefractive properties were investigated systematically as a function of Ce concentration at 830 nm. The diffraction efficiency and two-beam coupling constant both increase with increasing Ce concentration and reach 3.5% and 1.5 cm-1, respectively, at a Ce concentration of 0.5 wt%. The Ce3+ is thought to act as a photorefractive species at near-infrared wavelengths. |
| Databáze: | OpenAIRE |
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