%0 Journal Article
%T A Bi-directionally Pumped S-band Thulium-doped Silica Fiber Amplifier Using Up-conversion Pumping at 1 064 nm<br>1 064 nm波长双向泵浦的S波段掺铥石英光纤放大器
%A DU Ge-guo
%A LI Da-jun
%A LI Hong-wei
%A RUAN Shuang-chen
%A <br>杜戈果
%A 黎大军
%A 李宏伟
%A 阮双琛
%J 光子学报
%D 2007
%I 
%X The TDFA (Thulium-Doped Fiber Amplifier) is a promising candidate for an amplifying device in S band. We established a bi-directionally pumped Thulium-Doped Silica Fiber Amplifier (TDSFA) with a single 1 064 nm pump wavelength in order to know the characteristics of the amplifier. The on-off gain was measured for simplicity. The gain varying with pump power and with signal wavelength was studied in detail. At the maximum launched pump power of 1 400 mW,the amplifier had a gain over a wide wavelength region of 1 485 to 1 517 nm, with a peak gain of 3.76 dB. Weak GSA (Ground-State Absorption) and strong ESA (Excited-State Absorption) limit the further increase of the gain. The results show that TDSFA is operable using such an up-conversion pumping scheme.
%K Thulium-doped silica fiber amplifier
%K Up-conversion pumping
%K Bi-directionally pumping
%K On-off gain<br>掺铥石英光纤放大器
%K 上转换泵浦
%K 双向泵浦
%K 开关增益
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=8A03E72D4BB94E74FC6435E53ECC0564&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=B31275AF3241DB2D&sid=7EEA6F8DDD9FAD6E&eid=20154CF366EC08B1&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=13