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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18369
Title: High-power single-mode trench-assisted EDFA
Authors: Gaur A.
Rastogi, Vipul K.
Bhattacharya K.
Chakraborty R.
Published in: Proceedings of SPIE - The International Society for Optical Engineering
Abstract: A trench assisted, 0.15-NA, effective single mode leaky Erbium Doped Fiber Amplifier is proposed for high power applications. The segmented-core of the fiber enables to achieve 783 μm2 mode area which reduces nonlinearity and increases power handling capacity of the fiber. The leakage loss of the modes is controlled by annular core segments and low index trench in the cladding. The leakage loss of the LP<inf>11</inf> mode is 10.49 dB/m and that of the fundamental mode is 0.017 dB/m at 1530 nm wavelength. We have injected 20 mW power into each mode and have calculated the gain for 26 m length of the fiber using 250 W pump at 980 nm wavelength. The signal power in the LP01 mode is amplified to 122 W and that in the LP<inf>11</inf> mode drops down to 5.78×10-27W. The low output signal power in LP<inf>11</inf> mode ensures selective single mode amplification of fundamental mode. Selective single mode amplification confirms good beam quality at the output end. © 2015 Copyright SPIE.
Citation: Proceedings of SPIE - The International Society for Optical Engineering, (2015)
URI: https://doi.org/10.1117/12.2181627
http://repository.iitr.ac.in/handle/123456789/18369
Issue Date: 2015
Publisher: SPIE
Keywords: Effective Single Mode Fiber
Erbium Doped Fiber Amplifier
High Power Amplifier
Large Mode Area
Leaky Fiber
Multi-Mode Leaky Fiber
Segmented-core Fiber
Trench-assisted EDFA
ISBN: 9.78163E+12
ISSN: 0277786X
Author Scopus IDs: 56625626200
7006364661
Author Affiliations: Gaur, A., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Rastogi, V., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Appears in Collections:Conference Publications [PH]

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