Title :
Increase in laser RIN due to asymmetric nonlinear gain, fiber dispersion, and modulation
Author :
Lu, Xiao Lin ; Su, C.B. ; Lauer, R.B.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
It is shown that the low-frequency relative-intensity-noise (RIN) spectra of a Fabry-Perot laser are adequately described only when the effects of longitudinal mode coupling through the asymmetric nonlinear gain are accounted for. Additionally, for the first time, the authors have included this asymmetric mode coupling to accurately model the translation of the low-frequency noise of a semiconductor laser in the presence of modulation and fiber dispersion. The translation of noise, which determines the signal-to-noise performance in subcarrier multiplexed systems, is also confirmed experimentally.<>
Keywords :
electron device noise; optical communication equipment; optical dispersion; optical fibres; optical modulation; semiconductor junction lasers; Fabry-Perot laser; asymmetric mode coupling; asymmetric nonlinear gain; fiber dispersion; laser RIN; longitudinal mode coupling; low frequency relative intensity noise spectra; low-frequency noise; modulation; semiconductor laser; signal-to-noise performance; subcarrier multiplexed systems; Fiber lasers; Fiber nonlinear optics; Laser modes; Laser noise; Nonlinear optics; Optical filters; Optical noise; Phase noise; Semiconductor device noise; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
