Novel perfect-shuffle system with good flexibility and its property analysis

摘要

A novel method for implementing the perfect shuffle (PS) with the aid of a Dammann Grating (DG) is proposed. For DG is a binary phase grating, the PS can be achieved with higher diffraction efficiency than using a holographic element. Shifting the DG properly in the system, the PS with various interchannel spacings and various numbers of channels can be achieved easily. The system's properties including efficiency, space-bandwidth product are discussed. The experimental results are given.