All‐optical control of spatial beam intensity in multimode fibres by polarisation modulation

Abstract

Abstract The authors demonstrate that by injecting a combination of LP11 modes in a few‐mode high‐birefringence fibres that all‐optical control of the spatial beam intensity at the fibre output is achieved by varying the polarisation at the fibre input. These results may be generalised to the cases where different and several higher order modes are employed.

Keywords

• birefringence
• laser beams
• optical control
• optical fibre polarisation
• optical modulation