Title :
REAP: recycled erbium amplifier pump
Author :
Delavaux, J.-M.P. ; Nuyts, R.J. ; Mizuhara, O. ; Nagel, J.A. ; DiGiovanni, D.J.
Author_Institution :
AT&T Bell Labs., Breinigsville, PA, USA
fDate :
3/1/1994 12:00:00 AM
Abstract :
We report a novel erbium doped fiber preamplifier design with a combination of high gain (>40 dB) and low noise figure (3 dB) at 1556 nm for 80 mW of 980 nm pump power. The co-directional single pumped amplifier employs a composite two stage arrangement in which the second stage is pumped with recycled pump not used in the first stage. In addition, we contrast the amplifier performance trade-offs with the insertions of an isolator or a band pass filter or both in between the two amplifier sections. Finally, we demonstrate a receiver sensitivity of /spl minus/37 dBm (156 photons/bit) with a 10 Gb/s optical preamplifier regenerator.<>
Keywords :
erbium; fibre lasers; optical fibres; optical filters; optical isolators; optical pumping; 10 Gbit/s; 1556 nm; 3 dB; 40 dB; 80 mW; 980 nm; REAP; amplifier performance trade-offs; band pass filter; co-directional single pumped amplifier; composite two stage arrangement; erbium doped fiber preamplifier design; high gain; isolator; low noise figure; optical preamplifier regenerator; receiver sensitivity; recycled erbium amplifier pump; second stage; Band pass filters; Erbium; Erbium-doped fiber amplifier; Gain; Isolators; Noise figure; Optical amplifiers; Optical receivers; Preamplifiers; Repeaters;
Journal_Title :
Photonics Technology Letters, IEEE
