In order to use optical methods and optical elements to implement perfect shuffle

a perfect shuffle transformation method using micro-blazed grating array was proposed. The left inverse perfect shuffle

right perfect shuffle and the right inverse perfect shuffle are discussed complementally based on some reports on left perfect shuffle in previous papers. According to the different grating period values

a 1×8 micro-blazed grating array element for realizing 8-channel left perfect shuffle transformation is fabricated with Very Large Scale Integration (VLSI)

stepping photolithography and Reactive Ion Etching (RIE). Similarly

depending on the micro-blazed grating array with different period values

the left inverse perfect shuffle

right perfect shuffle and the right inverse perfect shuffle transformation also can be accomplished. Experimental results show obviously that

comparing with conventional methods

it has advantages of small size

compact structure

easy to integrate

high diffraction efficiency (95% or so in principle)

and high performance. Thus

it should be helpful in constructing multistage perfect shuffle interconnection network.