| 題名: | Dual wavelength demultiplexing by coupling and decoupling of photonic crystal waveguides |
| 作者: | Chien FSS;Hsu YJ;Hsieh WF;Cheng SC |
| 貢獻者: | 物理系 |
| 日期: | 2004 |
| 上傳時間: | 2009-11-27 11:21:21 (UTC+8) |
| 摘要: | We demonstrate that the fundamental mode of the two coupled photonic crystal waveguides (PCWs) can be odd parity in a triangular photonic crystal and their dispersion curves do intersect. Thus, the PCWs are decoupled at the crossing point. By employing the decoupling at the crossing-point frequency and ultra short coupling length for another frequency, we designed a dual-wavelength demultiplexer with a coupling length of only two wavelengths and output power ratio as high as 15 dB. A loop-shape PCW is adapted to eliminate the backward energy flow. (C) 2004 Optical Society of America. |
| 關聯: | OPTICS EXPRESS Volume: 12 Issue: 6 Pages: 1119-1125 |
| 顯示於類別: | [光電物理系] 期刊論文
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