| A Novel Fabrication for Method Long PeriodFiber Grating |
| |
| 作者姓名： | HE Shuo LI Xinwan YE Ailun HE Wanxun SONG Hao |
| |
| 作者单位： | State Key Laboratory on Local Fiber Communication Networks andAdvanced Fiber Communication Systems，Optical Fiber Technology Institute，Shanghai Jiaotong University，Shanghai 200030，China |
| |
| 摘 要： | A new method of fabricating all-fiber broadband-rejection filter based on long period fiber grating (LPFG) is proposed. The principle in the method is to make periodic asymmetrical deformation in the core of fiber without microbends by electrode discharging so as to induce periodic refractive index changes. Two kinds of filters whose rejection peak wavelength at 1550 nm and 1310 nm are obtained. The insertion loss is less than 0.6 dB and 1.4 dB respectively. The 20 dB bandwidth ranges from 10 nm to 39 nm. The backward reflection loss is extremely small (less than - 70 dB). Such devices can be used as isolation filters in 1310/1550 nm WDM system and other fields.
|
A Novel Fabrication for Method Long PeriodFiber Grating |
| |
| HE Shuo LI Xinwan YE Ailun HE Wanxun SONG Hao.A Novel Fabrication for Method Long PeriodFiber Grating[J].中国激光(英文版),2002(2). |
| |
| Authors: | HE Shuo LI Xinwan YE Ailun HE Wanxun SONG Hao |
| |
| Abstract: | A new method of fabricating all-fiber broadband-rejection filter based on long period fiber grating (LPFG) is proposed. The principle in the method is to make periodic asymmetrical deformation in the core of fiber without microbends by electrode discharging so as to induce periodic refractive index changes. Two kinds of filters whose rejection peak wavelength at 1550 nm and 1310 nm are obtained. The insertion loss is less than 0.6 dB and 1.4 dB respectively. The 20 dB bandwidth ranges from 10 nm to 39 nm. The backward reflection loss is extremely small (less than - 70 dB). Such devices can be used as isolation filters in 1310/1550 nm WDM system and other fields. |
| |
| Keywords: | long period fiber grating band-rejection filter asymmetrical deformation |
| 本文献已被 CNKI 等数据库收录！ |
