NDLI: Design of S-Band Erbium-Doped Concentric Dual-Core Photonic Crystal Fiber Amplifiers With ASE Suppression

Content Provider	IEEE Xplore Digital Library
Author	Varshney, S.K. Saitoh, K. Koshiba, M. Pal, B.P. Sinha, R.K.
Copyright Year	1983
Abstract	In this paper, we theoretically design and numerically demonstrate a large mode area and single-mode erbium-doped photonic crystal fiber (PCF) amplifier operating in the S-band with a complete suppression of amplified spontaneous emission (ASE) and very low Raman gain coefficient at 980-nm pump. The proposed fiber design is based on a dual-concentric core refractive index profile and is solved through full-vectorial finite-element method. Numerical simulations reveal that more than 50 dB of gain can be achieved with a mean gain value of 27 dB over 70-nm bandwidth in a 7.2-m-long fiber. The effect of bending on the amplification characteristics has been noted. It has been shown that by a proper choice of the PCF profile parameters, the fiber amplifier can be made bend-insensitive for a bending radius as small as 5 cm. Further, our design guidelines should be useful to achieve a functional bend-insensitive fiber amplifier, where rack space is a premium and tight bending radius becomes inevitable.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1725
Ending Page	1733
Page Count	9
File Size	814120
File Format	PDF
ISSN	07338724
Volume Number	27
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonic crystal fibers Erbium-doped fiber amplifier Spontaneous emission Stimulated emission Refractive index Finite element methods Numerical simulation Gain Bandwidth Guidelines S-band finite-element method microstructured optical fibers photonic crystal fibers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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