Simulation and properties of Erbium-Doped Distributed Bragg Reflectors (ED-DBRs) and Fiber Bragg Gratings (ED-FBGs)
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- 作者：Nikolaos A. Stathopoulos ; Stylianos P. Savaidis ; Hercules Simos ; Maria Rangoussi ; Paata Kervalishvili
- 关键词：Erbium-doped distributed Bragg reflectors ; Erbium-doped fiber Bragg-gratings ; Coupled-mode theory ; Transmission line model
- 刊名：Optical Fiber Technology
- 出版年：2013
- 出版时间：October, 2013
- 年：2013
- 卷：19
- 期：5
- 页码：369-377
- 全文大小：1121 K
文摘
The structure of an active Erbium-Doped Distributed Bragg Reflector (ED-DBR) and a Fiber Bragg Grating (ED-FBG) is simulated using a rigorous transmission line model and an approximate version of the coupled-mode theory, respectively. The basic calculation steps and assumptions of the proposed simulation models are described and the key parameters that determine the devices¡¯ reflection characteristics are in detail discussed. By applying the proposed transmission line model, numerical results are provided for both spectral reflectivity and transparency response for an active-slab DBR with increased erbium-ion concentration. In addition, using coupled-mode theory for the simulation of the cylindrical geometry of the ED-FBG device, the pump power-dependent reflection and transmission coefficients are obtained and their potential use in active sensor applications are discussed.