S-band gain and noise figure improvements in thulium-doped fiber amplifier by using macro-bending approach

Document Type

Article

Publication Date

1-1-2012

Abstract

A new method for gain and noise figure enhancements in S-band thulium-doped fiber amplifier (TDFA) co-doped with aluminum is demonstrated using a macro-bending approach. The macro-bending suppresses both the amplified spontaneous emission (ASE) at 800 and 1,800 nm wavelength region and consequently improves the S-band gain of the TDFA. Gain enhancements between 5 and 8 dB are obtained with the macro-bending between 1,420 and 1,480 nm. The macro-bending also reduces the noise figure of the S-band TDFA.

Keywords

Aluminum, Fiber amplifiers, Thulium

Divisions

fac_eng,PHYSICS

Publication Title

Applied Physics B

Volume

108

Issue

4

Publisher

Springer

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