Title :
Noise characteristics of high-power doped-fibre superluminescent sources
Author :
Morkel, Paul R ; Laming, R.I. ; Payne, David N.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
Measurement of the noise characteristics of a superluminescent erbium-doped silica fibre source shows a noise component in addition to shot noise, which prevents the SNR of the source output increasing beyond a fixed value. The additional noise component can be attributed to excess photon noise previously identified with light from thermal sources, and will be present in all broadband sources emitting above a certain power.
Keywords :
erbium; fibre optic sensors; fibre optics; optical noise measurement; silicon compounds; superradiance; SNR; SiO 2:Er fibre; additional noise component; broadband sources emitting; excess photon noise; high-power doped-fibre superluminescent sources; noise characteristics; noise component; shot noise; thermal sources;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900066
