Optimization of core size in erbium doped holey fiber amplifiers

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• 作者：Maryam Karimi ^{mykarimi@aeoi.org.ir" class="auth_mail}
• 关键词：Holey fiber ; Optical fiber amplifier ; Core size optimization
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：June 2014
• 年：2014
• 卷：125
• 期：12
• 页码：2780-2783
• 全文大小：1212 K

文摘

Holey fibers (HFs) can be used as amplifier in optical communication systems. These new fiber structures have flexibility to change the fiber parameters such as refractive index of guided mode, air filling factor (AFF), V number, group velocity dispersion (GVD) and numerical aperture, only by the change of the hole size and air-hole spacing. In this paper we will use improved fully vectorial effective index method (IFEIM) to analyze the erbium doped holey fiber amplifier (EDHFA) with hexagonal unit cell. The range that core size can change in any air-hole spacing will determine and the growth of core size in the amplifier character such as maximum gain and optimum length will study. By determination of single mode region the effect of pump power and dopant concentration growth, on the amplifier parameter will define.