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Journal article

Optimum position of isolators within erbium-doped fibers

In I E E E Photonics Technology Letters — 1992, Volume 4, Issue 6, pp. 568-570

By Lumholt, Ole¹; Schüsler, Kim; Bjarklev, Anders Overgaard²; Dahl-petersen, Svend; Povlsen, Jørn Hedegaard²; Rasmussen, Thomas¹; Rottwitt, Karsten^2,3

From

Technical University of Denmark¹

Department of Photonics Engineering, Technical University of Denmark²

Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark³

Abstract

An isolator is used as an amplified spontaneous emission suppressing component within an erbium-doped fiber. The optimum isolator placement is both experimentally and theoretically determined and found to be slightly dependent upon pump power. Improvements of 4 dB in gain and 2 dB in noise figure are measured for the optimum isolator location at 25% of the fiber length when the fiber is pumped with 60 mW of pump power at 1.48 μm

Language:	English
Publisher:	IEEE
Year:	1992
Pages:	568-570
ISSN:	19410174 and 10411135
Types:	Journal article
DOI:	10.1109/68.141970
ORCIDs:	Rottwitt, Karsten

Keywords

Design optimization Erbium Gain Insertion loss Isolators Noise figure Optical fiber couplers Optical fiber theory Power measurement Spontaneous emission

Optimum position of isolators within erbium-doped fibers

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Optimum position of isolators within erbium-doped fibers

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