Title :
Characteristics of an erbium-doped fiber amplifier pumped by a frequency doubled diode-pumped Nd:YAG laser
Author :
Kannan, K. ; Frisken, S. ; Atherton, P.S.
Author_Institution :
OTC Ltd., Sydney, NSW, Australia
Abstract :
The characteristics of an erbium-doped fiber amplifier pumped by a 532-nm diode-pumped Nd:YAG laser are presented. A maximum system gain of 31 dB at 591 Mb/s is obtained with a corresponding system noise of less than 0.5 dB. An amplified signal output power of greater than 10 mW was obtained, with a coupled pump power of 46 mW and a corresponding quantum efficiency of around 65%. By optimizing the erbium fiber design, higher system gains and saturation power levels are feasible. These figures, and in particular the combination of high output powers and low noise, establish the usefulness of this pump laser as a viable alternative to the semiconductor pump lasers currently under investigation at 1480 and 980 nm.<>
Keywords :
erbium; fibre lasers; noise; optical communication equipment; optical pumping; optical saturation; 10 mW; 31 dB; 46 mW; 532 nm; 591 Mbit/s; 65 percent; Er doped fibre amplifier; YAG:Nd; YAl5O12:Nd; amplified signal output power; coupled pump power; frequency doubled diode-pumped Nd:YAG laser; low noise; maximum system gain; pump laser; quantum efficiency; saturation power levels; system noise; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Frequency; Laser excitation; Laser noise; Power generation; Power lasers; Pump lasers; Semiconductor device noise; Semiconductor diodes;
Journal_Title :
Photonics Technology Letters, IEEE
