基于分层阵列体全息光栅的波分解复用器的研究

Study of Wavelength Division Multiplexing Based on Layered Multiple Volume Holographic Gratings

本文在分析现有解复用器件存在的一些问题的基础上,提出了基于分层阵列透射式体全息光栅的用于2×4信道波分复用系统中的波长解复用器件的设计方法。以LiNbO_3晶体作为记录介质,红外宽带光源作为波长待解复用光源,实验实现了基于分层阵列透射式体全息光栅的2×4信道波分解复用。实验结果表明,基于分层阵列体全息光栅的波长解复用器件,可以在不影响信道强度的情况下使信道数成倍增加。

In this paper, the design method of a wavelength division multiplexing （WDM） device based on layered multiple transmission volume holographic gratings for a 2×4 channel WDM device is proposed after some problems in the current demultiplexers are analyzed. A 2×4 channel demultiplexer based on layered multiple transmission volume holographic gratings is realized by using the LiNbO3 crystal as the record medium and using the infrared wideband optical source as the source for the wavelength to be demultiplexed. The experimental result shows that the channels of the wavelength division multiplexing device based on layered volume holographic gratings can be increased greatly and the channel intensity will not be reduced.