Title :
Non-white photodetection noise at the output of an optical amplifier: theory and experiment
Author :
Guang-Hua, Duan. ; Georgiev, Evgenii
Author_Institution :
Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
Based on the statistical properties of amplified spontaneous emission, the photodetection noise spectrum at the output of an optical amplifier is calculated. The results revealed that the signal-spontaneous emission beat noise spectrum is a transposition of the spontaneous-emission spectrum to the low-frequency domain, and the spontaneous emission-spontaneous emission beat noise spectrum is the auto-correlation function of the spontaneous-emission spectrum. These theoretical results are verified experimentally on an erbium-doped fiber amplifier, filtered by a Mach-Zehnder interferometer.
Keywords :
erbium; laser noise; optical correlation; optical fibre amplifiers; random noise; superradiance; ASE statistical properties; EDFA; Mach-Zehnder interferometer filtering; amplified spontaneous emission; auto-correlation function; erbium-doped fiber amplifier; low-frequency domain; nonwhite photodetection noise; optical amplifier; photodetection noise spectrum; signal-spontaneous emission beat noise spectrum; spontaneous emission-spontaneous emission beat noise spectrum; Autocorrelation; Erbium-doped fiber amplifier; Low-frequency noise; Optical amplifiers; Optical filters; Optical interferometry; Optical noise; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
