Accession Number : ADP007593

Title :   Limitation for Transmission Capacity in Soliton Based Optical Fibre Communications Due to Stimulated Brillouin Scattering,

Corporate Author : NICE UNIV (FRANCE)

Personal Author(s) : Montes, Carlos ; Rubenchik, Alexander M.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : For long-distance data communication based on coherent optical transmission in single-mode optical fibres, the use of soliton pulses as information carriers has raised a large interest since the NLS soliton concept (solution of the nonlinear Schroedinger equation) in dispersive optical fibres by Hasegawa and Tappert and its first experimental verification by Mollenauer. High bit rate transmission capacity may be achieved by this technique if the minimum distance between solitons (5 to 10 times their width) avoids the interaction between them. Recent experiments have demonstrated: (1) soliton transmission over more than 4000 km in a nonshifted-dispersion single-mode fibre (hereafter called n.d.-s.f.) in which losses are periodically compensated by Raman gain, and over 9000 km in a dispersion-shifted fibre (hereafter called d.-s.f.); (2) generation and transmission of high-bit rate optical solitons (up to a repetition rate f sub bit = 20 GHz) in dispersion-shifted fibres, losses being compensated by amplification in an Er(3+) - doped fibre, using a color-center laser, or a directly modulated distributed-feedback laser diode.

Descriptors :   *SOLITONS, *FIBER OPTICS, *OPTICAL COMMUNICATIONS, AMPLIFICATION, COLOR CENTERS, FEEDBACK, GAIN, INTERACTIONS, LOSSES, PULSES, REPETITION RATE, VERIFICATION, SYMPOSIA, FRANCE, BRILLOUIN ZONES, RANGE(DISTANCE), LIMITATIONS, SCHRODINGER EQUATION, DISPERSION RELATIONS, SEMICONDUCTOR LASERS, SEMICONDUCTOR DIODES.

Subject Categories : Fiber Optics and Integrated Optics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE