%0 Journal Article
%T All fiber dynamic gain equalizer based on a fiber grating with rotary refractive index change<br>基于包层旋转折变型光纤光栅的动态增益均衡器
%A Zhu Tao
%A Rao Yun-Jiang
%A Wang Ruo-Kun
%A Wang Jiu-Ling
%A <br>朱涛
%A 饶云江
%A 王若崑
%A 王久玲
%J 物理学报
%D 2006
%I 
%X An all-fiber dynamic gain equalizer for flattening Er-doped fiber amplifiers based on a long period fiber grating (LPFG) with rotary refractive index change induced by high-frequency CO2 laser pulses is reported, for the first time to our knowledge. Experimental results show that its transverse load sensitivity is up to 0.37dB/(g·mm-1), which is 9 times higher than that of a normal LPFG induced by the same method. In addition, it is found that the strong orientation-dependence of the transverse load sensitivity of the normal LPFG reported previously has been weakened considerably. Therefore, such a dynamic gain equalizer based on the transverse load and temperature characteristics of this novel LPFG provides a much larger adjustable range and makes packaging of the gain equalizer much easier. A demonstration has been carried out to flatten an Er-doped fibre amplifier to ±0.5dB over a 32nm bandwidth.
%K optical communications
%K long-period fiber grating
%K dynamic gain equalizing
%K rotary refractive index change<br>光纤通信技术
%K 长周期光纤光栅
%K 动态增益均衡
%K 旋转折变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=56891A8B5719E84E&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=9CF7A0430CBB2DFD&sid=5378E8E8735DAEAC&eid=1C2A9C2CE65406F4&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=10