Title :
Analyses of all-optically regenerated transmission system using nonlinear interferometric switches
Author :
Sakamoto, Takahide ; Kikuchi, Kazuro
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
Abstract :
We derive, for the first time, a simple formula for calculating the signal-to-noise ratio (SNR) in the transmission system where all-optical nonlinear interferometric switches are periodically inserted as all-optical regenerators. This formula predicts that even after the signal traveling over an infinite distance, the SNR can be maintained at a certain value, as long as the optical amplifier noise is smaller than a critical level.
Keywords :
Mach-Zehnder interferometers; nonlinear optics; optical fibre communication; optical noise; optical switches; superradiance; SNR; all-optical regenerators; all-optically regenerated transmission system; nonlinear interferometric switches; optical amplifier noise; signal-to-noise ratio; Noise level; Nonlinear optics; Optical amplifiers; Optical interferometry; Optical noise; Optical switches; Repeaters; Semiconductor optical amplifiers; Signal to noise ratio; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
