A compact fractal hexagonal 36 by 36 self-routing switch using polarization-controlled VCSEL array holographically interconnected

Principle and design of a self-routing 36 by 36 free-space optically interconnected optoelectronic crossbar cell-switch with a high bit rate and reconfigurable between two successive cells, is detailed. Derived from ATM oriented telecom switch and optical computing it uses extensively the vertical cavity surface emitting lasers and their polarization control both electrical and optical. An original fractal hexagonal geometry is proposed which enables use of low cost optically recorded holograms and compact integrated optical devices.