Title :
Gain saturation effects in high-speed, multichannel erbium-doped fiber amplifiers at λ=1.53 μm
Author :
Desurvire, Emmanuel ; Giles, C. Randy ; Simpson, Jay R.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
12/1/1989 12:00:00 AM
Abstract :
Gain compression effects during multichannel signal amplification in an erbium-doped fiber amplifier at λ=1.53 are investigated. A theory is presented that accurately models the observed amplified spontaneous emission spectra, signal gains, and saturation effects. Measurements of the gain dynamics show recovery times in the 1-ms range, indicating that the fiber amplifier is immune to interchannel interference over a wide range of bit-sequence rates. Simultaneous amplification of two signals modulated at 2 Gb/s shows low crosstalk penalty, attributable only to steady-state gain compression. This experiment demonstrates the potential of erbium-doped fiber amplifiers for application in wavelength-division-multiplexed communication systems
Keywords :
erbium; fibre optics; high-speed optical techniques; solid lasers; 1 ms; 1.53 micron; amplified spontaneous emission spectra; bit-sequence rates; crosstalk penalty; gain dynamics; gain saturation effects; high speed multichannel Er doped fiber amplifiers; interchannel interference; multichannel signal amplification; recovery times; signal gains; steady-state gain compression; wavelength-division-multiplexed communication systems; Crosstalk; Erbium-doped fiber amplifier; Laser excitation; Optical distortion; Optical fiber amplifiers; Optical fiber communication; Optical fiber polarization; Optical fiber theory; Semiconductor optical amplifiers; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
