Abstract
A fiber amplifier with a net gain of 43dB at 1535nm and 21dB over the full C-band was demonstrated using a newly developed 8-cm long erbium-doped phosphate fiber excited with a 1 W 975nm multimode laser diode. A theoretical model was developed for multi-mode pumped amplifier using a very short fiber.
© 2002 Optical Society of America
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