摘要: Abstract This paper presents a new computational strategy for efficient and stable modeling of rare-earth-doped fiber amplifiers illustrates the with results cladding-pumped erbium/ytterbium-doped amplifier. The allows arbitrary radial dependence optical fields rare-earth densities, wavelength resolution amplified spontaneous emission (ASE) at pump signal wavelengths, numbers rate equations on ground- excited-state number density. Numerical are presented Er/Yb-doped that illustrate how to reach conversion efficiency limited by quantum defect, power intensity ASE depend operating wavelength, secondary loss mechanisms such as distributed loss, upconversion, pairing/clustering affect
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