TY - JOUR
T1 - Approximate analytical expressions for signal amplification in strongly pumped fibre amplifiers
AU - Oron, R.
AU - Hardy, A.
PY - 1998
Y1 - 1998
N2 - Strongly pumped fibre amplifiers (e.g. Er3+ and Nd33+ doped fibres) have been analysed previously, yielding approximate but quite accurate analytical expressions for the pump and signal powers. These expressions are inefficient, however, for forward pumping, when the parameter q approaches unity (typical for single clad fibres). An alternative form of the expressions is presented, which is also useful in that region. Furthermore, the analysis is extended to include systems such as Yb3+ doped fibres, for which the pumping efficiency is reduced due to stimulated emission at the pump wavelength of λp.
AB - Strongly pumped fibre amplifiers (e.g. Er3+ and Nd33+ doped fibres) have been analysed previously, yielding approximate but quite accurate analytical expressions for the pump and signal powers. These expressions are inefficient, however, for forward pumping, when the parameter q approaches unity (typical for single clad fibres). An alternative form of the expressions is presented, which is also useful in that region. Furthermore, the analysis is extended to include systems such as Yb3+ doped fibres, for which the pumping efficiency is reduced due to stimulated emission at the pump wavelength of λp.
KW - Fibre amplifiers
KW - Pump efficiency
KW - Pump wavelength
KW - Signal amplification
UR - http://www.scopus.com/inward/record.url?scp=0032045646&partnerID=8YFLogxK
U2 - 10.1049/ip-opt:19981812
DO - 10.1049/ip-opt:19981812
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AN - SCOPUS:0032045646
SN - 1350-2433
VL - 145
SP - 138
EP - 140
JO - IEE Proceedings: Optoelectronics
JF - IEE Proceedings: Optoelectronics
IS - 2
ER -