Gaussian apodization technique in holographic demultiplexer based on photopolymer volume grating

포토폴리머 부피형 회절격자를 이용한 홀로그래픽 역다중화기의 가우시안 아포다이징

In recent years, soaring traffic volumes over optical communications networks lead to the rapid advances in information communications equipments. In backbone communications networks, there has been an advance in high-density transmission through DWDM, which can simultaneously transmit numerous signals with different wavelengths. When the channel spacing is narrower, the cross-talk between channels an important parameter that guarantees to the high performance of a whole system, becomes critical. (omitted)