Title :
Noise performance of erbium-doped fiber amplifier pumped at 1.49 mu m, and application to signal preamplification at 1.8 Gbit/s
Author :
Giles, C.R. ; Desurvire, E. ; Zyskind, J.L. ; Simpson, J.R.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
Abstract :
Direct measurements of the noise figure of an erbium-doped fiber amplifier are described. With an amplifier gain as high as 36 dB, a noise figure as low as 4.1 dB was measured. Noise figures remained below 6 dB for signal wavelengths within the high gain (G>20 dB) region of the amplifier. An optical receiver sensitivity of -43 dBm at 1.8 Gb/s, corresponding to 215 photons/b, was achieved using the fiber amplifier as an optical preamplifier for a direct detection receiver.<>
Keywords :
electron device noise; erbium; fibre optics; optical communication equipment; optical pumping; solid lasers; 1.49 micron; 1.8 Gbit/s; 36 dB; 4.1 to 6 dB; Er doped fiber amplifier; amplifier gain; direct detection receiver; noise figure; optical preamplifier; optical receiver sensitivity; signal preamplification; signal wavelengths; Erbium-doped fiber amplifier; Gain measurement; Low-noise amplifiers; Noise figure; Noise measurement; Optical amplifiers; Optical fiber amplifiers; Optical receivers; Semiconductor optical amplifiers; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
