Title :
Spectral noise figure of Er/sup 3+/-doped fiber amplifiers
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
3/1/1990 12:00:00 AM
Abstract :
The erbium-doped fiber amplifier noise figure spectrum and its evolution under various pumping regimes is analyzed. The analysis shows that noise figures in the range +or-0.15 dB around the 3-dB quantum limit are possible within a spectral band of 50 nm. This demonstrates the possibility of quantum-limited amplification for broadband wavelength-division multiplexed (WDM) signals.<>
Keywords :
erbium; fibre optics; frequency division multiplexing; optical pumping; random noise; solid lasers; 3-dB quantum limit; Er/sup 3+/-doped fiber amplifiers; WDM signals; amplifier noise figure spectrum; broadband wavelength-division multiplexed; noise figures; pumping regimes; quantum-limited amplification; spectral band; spectral noise figures; Absorption; Erbium; Noise figure; Noise measurement; Optical fiber amplifiers; Optical filters; Optical noise; Optical pumping; Signal to noise ratio; Spontaneous emission;
Journal_Title :
Photonics Technology Letters, IEEE
