%0 Journal Article
%T Polarization-maintaining photonic crystal fibre
%A Lou Shu-Qin
%A Wang Zhi
%A Ren Guo-Bin
%A Jian Shui-Sheng
%A <br>娄淑琴
%A 王智
%A 任国斌
%A 简水生
%J 中国物理 B
%D 2004
%I 
%X Photonic crystal fibres (PCFs) offer new possibilities of realizing highly birefringent fibres due to a higher intrinsic index contrast compared to conventional fibres. In this paper, we analyse theoretically the modal properties of a kind of polarization-maintaining PCF, namely the elliptical hole photonic crystal fibre (EHPCF) with a central small elliptical hole introduced in the core region. We demonstrate the possibility of achieving large birefringence with zero walk-off in the single-mode regime. This PCF also exhibits unusual dispersion properties. Several hundred nanometres of ultra broadband flattened dispersion near the wavelength 1.55μm is achieved in this EHPCF with a central small hole of d_c=0.4Λ.
%K photonic crystal fibre (PCF)
%K birefringence
%K walk-off parameter
%K dispersion<br>光子晶体光纤
%K 色散
%K 椭圆孔
%K 波导光学
%K 光偏振
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=D514C5266B7619186C02F8D693B06155&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=DF92D298D3FF1E6E&sid=33C2C2DAF31F219B&eid=10343777FBBF55D5&journal_id=1009-1963&journal_name=中国物理&referenced_num=1&reference_num=20