Loss reduction of AS/AC networks with holographic optical switches

Abstract

Using holographic optical switches to implement active splitter/active combiner networks not only significantly save the space of the whole system and efficiently eliminates all interconnection lines and crossovers, but also reduces the number of switches from 2N(2)-2N to 2Nlog(2)N. The system insertion loss can also be significantly minimized by combining the unique features of the active splitter/active combiner network and holographic optical switches.