Title :
Noise figure definition valid from RF to optical frequencies
Author :
Haus, Hermann A.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
Two noise figure definitions are developed that are consistent with the IEEE Standard and shown to cover the entire frequency range from RF to optical frequencies. In the classical regime, the two definitions merge. In the optical domain, they differ in value, but provide the same information. A simple way of computing the noise figure of a distributed amplifier, such as a Raman amplifier, is presented.
Keywords :
Raman lasers; distributed amplifiers; optical noise; IEEE standard; RF amplifier; Raman amplifier; distributed amplifier; noise figure; optical amplifier; Fiber nonlinear optics; Noise figure; Nonlinear optics; Optical amplifiers; Optical noise; Optical saturation; Radio frequency; Radiofrequency amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.847759