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The impact of elliptical deformations for optimizing the performance of dual-core fluorine-doped photonic crystal fiber couplers
| Title: | The impact of elliptical deformations for optimizing the performance of dual-core fluorine-doped photonic crystal fiber couplers |
| Authors: | Varshney, Shailendra K. Browse this author | | Florous, Nikolaos J. Browse this author | | Saitoh, Kunimasa3 Browse this author →KAKEN DB | | Koshiba, Masanori Browse this author →KAKEN DB |
| Authors(alt): | 斉藤, 晋聖3 |
| Issue Date: | 6-Mar-2006 |
| Publisher: | Optical Society of America |
| Journal Title: | Optics Express |
| Volume: | 14 |
| Issue: | 5 |
| Start Page: | 1982 |
| End Page: | 1995 |
| Abstract: | In this paper we study the impact of elliptically-deformed features such as cladding air-holes and elliptically-modulated cores, as ingredients for optimizing the coupling characteristics of dual-core fluorine-doped photonic crystal fiber (PCF) couplers. We provide a detailed numerical investigation by using a trial and error approach for optimizing the propagation characteristics of fluorine-doped PCF couplers. Typical characteristics of the newly proposed PCF coupler structure are: wavelength-flattened coupling characteristics between 0.7 μm and 1.6 μm wavelength range, coupling efficiency of 50±1 % from 0.9 μm to 1.6 μm, and a reasonably small coupling length of 1.3 cm. In addition we have elaborately derived the design parameters so that our proposed dual-core PCF coupler exhibits polarization-insensitive characteristics verified by using a full-vectorial beam propagation method. The proposed dual-core PCF can be effectively used as a 3-dB coupler, over a wide wavelength range. |
| Rights: | © 2006 Optical Society of America, Inc. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/6128 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 齊藤 晋聖
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