We demonstrate patented techniques for generating tuneable complex field distributions for controllable coupling to high-order guided modes of micro-structured fibres. The optical Fourier transform of binary phase-only patterns which are encoded on a computer-controlled spatial light modulator, generates complex field distributions for selective launching of a desired mode. Both the amplitude and the phase of the programmable fields are modulated by straightforward and fast adjustments of simple pre-defined binary phase-only diffractive patterns. Experiments demonstrate tuneable coupling to the second-order guided modes of a commercially available index-guiding silica fibre with a triangular lattice air-hole microstructure.
|Publication status||Published - 2011|
|Event||Workshop on Space Division Multiplexing - Kongens Lyngby, Denmark|
Duration: 1 Jan 2011 → 1 Jan 2011
|Workshop||Workshop on Space Division Multiplexing|
|Period||01/01/2011 → 01/01/2011|
|Other||No exact date found.|