Er3+-Tm3+ co-doped tellurite fibers for broadband optical fiber amplifier around 1550 nm band

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OPTICAL FIBER TECHNOLOGY, 12(2), 185-195. 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA: ELSEVIER SCIENCE INC (2006) .

ELSEVIER SCIENCE INC

Abstract

Tellurite fibers with 7500 ppm Er3+ concentration and diverse 2500-15,000 ppm Tm3+ concentrations were manufactured, and their amplified spontaneous emission (ASE) intensities 1550 nm band around were obtained for 980 and 790 nm pump laser. Maxima 187 nm bandwidth at -3 dB points using Er3+-Tm3+ co-doped tellurite optical fibers pumping at 790 nm was obtained, and energy transfer (ET) process between I-4(13/2) Er3+ and F-3(4) Tm3+ levels related with the amplifier quantum efficiency was studied from experimental and calculated lifetime. (c) 2005 Elsevier Inc. All rights reserved.



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