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Proceedings Paper

Amplifications in the S-, C- and L-bands using RE-ion doped short tellurite fibres with 980 nm and 800 nm excitation sources
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Paper Abstract

We report the results of emission and amplification in Tm3+- and Er3+-fibres for signal gain in the 1420 nm to 1600 nm wavelength range, which covers S-, C- and L-bands of silica fibre optical communication networks. The paper explains the mechanism for alleviating the pump excited state absorption (ESA) in Er-doped tellurite fibres for maximizing the pump inversion efficiency at 980 nm using the Ce-ions as a co-dopant and via the structural modification of TeO2 glass using B2O3. The spectroscopic data and gain bandwidth of Er-doped fibres are reported in the C- and L-bands. Methods for enhancing gain in the S-band using the co-dopants (Tb3+, Yb3+) with 800 nm and 980 nm pumping schemes are also explained. The measured maximum relative gain in short fibres of 5 to 10 cm in length in C- and L-bands are: 30 dB and 15 dB, respectively. By comparison the internal gain in a 20 cm long Tm/Yb ion co-doped fibre pumped with a 980 nm source was 7 dB.

Paper Details

Date Published: 28 February 2006
PDF: 8 pages
Proc. SPIE 6116, Optical Components and Materials III, 61160K (28 February 2006); doi: 10.1117/12.644739
Show Author Affiliations
Animesh Jha, Univ. of Leeds (United Kingdom)
Shaoxiong Shen, Univ. of Leeds (United Kingdom)
P. Joshi, Univ. of Leeds (United Kingdom)

Published in SPIE Proceedings Vol. 6116:
Optical Components and Materials III
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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