Controlled switching of solitons in fiber nonlinear directional couplers

Wai S. Man, M. Suleyman Demokan, Hwa Yaw Tam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


A routing all-optical switch in which the signal, consisting of a fundamental soliton, is directed into either of the output ports of a 2 × 2 nonlinear directional coupler made of two fibers is investigated by means of computer simulation. The routing is controlled by copropagating a controlling pulse along with the signal pulse. Four different schemes for doing this are explored where the polarization of the controlling pulse with respect to the signal soliton may be varied, or the controlling pulse may be launched into either of the input ports, or it may have a wavelength different from that of the signal. It is shown that only one of the schemes allows a high switching efficiency and enables distortionless propagation of the signal pulse through the coupler.
Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Number of pages11
Publication statusPublished - 1 Dec 1995
EventCollision Avoidance and Automated Traffic Management Sensors - Philadelphia, PA, United States
Duration: 25 Oct 199526 Oct 1995


ConferenceCollision Avoidance and Automated Traffic Management Sensors
Country/TerritoryUnited States
CityPhiladelphia, PA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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