TY - JOUR
T1 - Efficiency optimization of high-power, Er3+-Yb3+-codoped fiber amplifiers for wavelength-division-multiplexing applications
AU - Yahel, Eldad
AU - Hardy, Amos
PY - 2003/6
Y1 - 2003/6
N2 - A rate-equations model that takes into account the energy transfer between Er3+ and Yb3+, as well as Er3+ clustering, is employed to analyze the power conversion efficiency (PCE) of high-power, gain-flattened, Er3+-Yb3+-codoped fiber amplifiers (EYDFA). Numerical results for C-band EYDFA and L-band EYDFA show that the PCE strongly depends on the excess pump losses and on the pump-band amplified spontaneous emission CASE). It is found that the L-band EYDFA is more efficient in the limit of strong injected signal powers and large cladding areas. It is also shown that the PCE significantly improves on increasing the Yb3+ concentration in the C-band EYDFA, whereas in the L-band EYDFA it mainly depends on the pump wavelength. The effect of Er3+ clusters on the PCE is discussed.
AB - A rate-equations model that takes into account the energy transfer between Er3+ and Yb3+, as well as Er3+ clustering, is employed to analyze the power conversion efficiency (PCE) of high-power, gain-flattened, Er3+-Yb3+-codoped fiber amplifiers (EYDFA). Numerical results for C-band EYDFA and L-band EYDFA show that the PCE strongly depends on the excess pump losses and on the pump-band amplified spontaneous emission CASE). It is found that the L-band EYDFA is more efficient in the limit of strong injected signal powers and large cladding areas. It is also shown that the PCE significantly improves on increasing the Yb3+ concentration in the C-band EYDFA, whereas in the L-band EYDFA it mainly depends on the pump wavelength. The effect of Er3+ clusters on the PCE is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0038305461&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.20.001189
DO - 10.1364/JOSAB.20.001189
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0038305461
VL - 20
SP - 1189
EP - 1197
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 6
ER -