標題: | Stress-Induced Versatile Tunable Long-Period Gratings in Photonic Crystal Fibers |
作者: | Chen, Hou-Ren Lin, Kuei-Huei Lin, Ja-Hon Hsieh, Wen-Feng 光電工程學系 Department of Photonics |
關鍵字: | Long-period fiber grating;mode coupling;photonic crystal fiber (PCF);tunable filter |
公開日期: | 1-九月-2008 |
摘要: | We report a method for generating versatile tunable long-period gratings (LPGs) in photonic crystal fibers (PCFs). The central wavelength and rejection bandwidth of LPGs can be tuned over a broad spectral range with adjustable transmission loss. Spectral fringes with uneven spacing are observed in chirped LPGs, depending on the interaction length and the amount of chirping between the two ends of the LPG, and can be removed by reducing the chirping and increasing the grating length. By utilizing a stress-induced LPG, gain flattening of an erbium-doped fiber amplifier has also been demonstrated. |
URI: | http://dx.doi.org/10.1109/LPT.2008.928534 http://hdl.handle.net/11536/8439 |
ISSN: | 1041-1135 |
DOI: | 10.1109/LPT.2008.928534 |
期刊: | IEEE PHOTONICS TECHNOLOGY LETTERS |
Volume: | 20 |
Issue: | 17-20 |
起始頁: | 1503 |
結束頁: | 1505 |
顯示於類別: | 期刊論文 |