Three-Wave Envelope Solitons: Can the Speed of Light in the Fiber be Controlled
Abstract
Theory predicts that three-wave envelop solitons (TWES) can be generated in dual-mode optical fibers by injecting two copropagating light waves or a light wave and a flexural acoustic wave. The mechanism of the three-wave interaction is the recently observed intermodal stimulated forward Brillouin scattering. The velocity of the TWES can be controlled by changing the pump power. Using 200 mW pump power for a typical dual-mode fiber, the average speed of the light pulse in the fiber can be made as low as 30,000 m/sec. A recent growth of interest in dual-mode (DM) optical fibers for a variety of nonlinear switching and modulation schemes stems from the long interaction lengths and from the two nondegenerate copropagating optical modes (at the same optical frequency) offered by these fibers. This letter presents theoretical results suggesting that the speed of light in optical fibers can be controlled by using a nonlinear resonant interaction between two copropagating light waves and an acoustic wave in a DM optical fiber. The second order nonlinearity involved in this process is the intermodal forward stimulated Brillouin scattering (FSBS) in DM optical fibers. FSBS has been observed recently for the first time. In our quantitative examples we use the fiber and wave parameters from that experiment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1991
- Accession Number
- ADA247615
Entities
People
- L. G. Kazovsky
- Y. N. Taranenko
Organizations
- Stanford University