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Inherently gain flattened S-band erbium doped fiber amplifier based on dual core resonant leaky fiber
Authors:Koppole Kamakshi  Vipul Rastogi
Institution:1. L’UNAM, Université de Nantes, MOLTECH-Anjou, CNRS, UMR 6200, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex3, France;2. Université de Nantes, Institut des Matériaux Jean Rouxel (IMN), CNRS, UMR 6502, 2 rue de la Houssinière, BP 92208, 44322 Nantes cedex 3, France;3. L’UNAM, Université de Nantes, Faculté des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, Nantes F-44000 France;1. Laboratoire de Physico-chimie des Matériaux Minéraux et leurs Applications, Centre National des Recherches en Sciences des Matériaux, BP No.73, 8027 Soliman, Tunisia;2. Département de Physique, Faculté des Sciences de Tunis, Université de Tunis-ElManar, ElManar, 2092 Tunis, Tunisia;1. Process Chemistry Centre, Åbo Akademi University, Biskopsgatan 8, FI-20500 Turku, Finland;2. nLight Corporation, Sorronrinne 9, FI-08500 Lohja, Finland;3. Center of Excellence for Functional Materials, Laboratory of Physical Chemistry, Åbo Akademi University, Porthansgatan 3, FI-20500 Turku, Finland;4. CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr Schweitzer, F-33608 Pessac, France;1. School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China;2. Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, PR China;3. School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, PR China
Abstract:A co-axial dual core resonant leaky optical fiber (DCRLF) is designed for inherent gain equalization of S-band erbium doped fiber amplifier (EDFA). Resonance tail of leakage loss of the fiber into the S-band region is utilized to flatten the gain. We have numerically studied the effect of various design parameters and their fabrication tolerances on gain flattening. We show 23.5 dB flat gain with ± 0.9 dB ripple over 30 nm bandwidth (1490–1520 nm) using 120 mW pump. The study should be useful in designing optical fiber amplifiers for optical communication system employing wavelength division multiplexing.
Keywords:
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