Designing of endlessly single mode polarization maintaining highly birefringent nonlinear micro-structure fiber at telecommunication window by FV-FEM

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• 作者：R.K. Gangwar ; S.S. Mishra ; Vinod Kumar Singh
• 关键词：Full-vector finite element method ; Microstructure fiber ; Effective mode area ; Nonlinearity ; Birefringence
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：March, 2014
• 年：2014
• 卷：125
• 期：5
• 页码：1641-1645
• 全文大小：828 K

文摘

An endlessly single mode highly polarization maintaining nonlinear microstructure fiber at telecommunication window is reported via full-vector finite element method. By taking three ring hexagonal PCF with suitable fiber parameter such as air hole diameter in cladding region d = 0.8 渭m, pitch 2.3 渭m and introducing four symmetrical large air holes near core region d鈥?#xA0;= 2 渭m, single mode (V_eff 鈮?#xA0;蟺), small effective mode area 2.7 渭m², nonlinear co-efficient 44.39 W^鈭? km^鈭?, high phase birefringence of the order of 10^鈭? and group birefringence of the order of 10^鈭? with beat length 0.3 渭m at wavelength 1.55 渭m are achieved.