| 講演抄録/キーワード |
| 講演名 |
2007-05-25 10:45
Design of grating couplers based on dual-core fibres ○Florence Yuen Ming Chan・Kiyotoshi Yasumoto(Kyushu Univ.) OFT2007-12 |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
We demonstrate a Bragg-reflection grating coupler using a dual-core fibre with long-period (LPG) and short-period grating (FBG) pair. The LPG couples light from the primary core to the cladding while the FBG operates in reflection and acts to drop the channel from the secondary core. In contrast to conventional FBG-based devices, the proposed coupler is non-reflective along the launching core. Achievement of high reflectivity and means of suppressing side lobes are highlighted. Numerical examples are given to illustrate the possibility of obtaining an effective flat-top Bragg-reflection bandpass filter with steep band transitions and negligible side lobes. The results are useful for the design of grating-based devices with applications in wavelength-division-multiplexed systems. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
coupled-mode theory / fibre gratings / long-period gratings / Bragg gratings / dual-core fibres / optical couplers / optical filters / |
| 文献情報 |
信学技報, vol. 107, no. 52, OFT2007-12, pp. 57-60, 2007年5月. |
| 資料番号 |
OFT2007-12 |
| 発行日 |
2007-05-17 (OFT) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
OFT2007-12 |