|
篇目详细内容 |
|
【篇名】 |
Tunable fiber Bragg grating filters realized by chirp rate tuning with a cantilever beam |
|
【刊名】 |
Frontiers of Optoelectronics in China |
|
【刊名缩写】 |
Front. Optoelectron. China |
|
【ISSN】 |
1674-4128 |
|
【EISSN】 |
1674-4594 |
|
【DOI】 |
10.1007/s12200-009-0090-0 |
|
【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
|
【出版年】 |
2010 |
|
【卷期】 |
3
卷1期 |
|
【页码】 |
71-77
页,共
7
页 |
|
【作者】 |
Xinyong DONG;
Perry Ping SHUM;
|
|
【关键词】 |
optical filter; fiber Bragg grating; multi-wavelength filter; bandwidth-tunable filter |
【摘要】 |
|
An efficient scheme to change the chirp rate of a fiber Bragg grating (FBG) has been developed based on a specially-designed cantilever beam with the beam-bending method. It allows, to date, the largest tuning range of 36 nm in reflection bandwidth of a chirped-FBG (CFBG) while keeping the center wavelength nearly fixed during the tuning process. Using this method, bandwidth-tunable fiber grating filters with tunable chromatic dispersion or differential group delay have been demonstrated. Channel spacing-tunable multi-wavelength filters based on both sampled- and superimposed-CFBGs have also been realized. Moreover, tuning of the bandwidth and channel spacing is continuous with this scheme that makes the achieved devices more flexible. |
