Coupler beam splitting
This paper reviews the on-chip beam splitting methods in recent years, which are mainly divided into the following categories: y-branch, multimode interference coupling, directional coupling, and inverse design. These fiber-coupled Beam Splitters are compact opto-mechanical units that split a fiber-coupled source into two output fiber cables with high efficiency. Two main components are used: fiber-fiber coupler and beam bender or beam splitter. Cheng Lü, Shuai Tang, Jiabao Yao, Jie Song, Yongyuan Jiang; Customizable beam splitting in planar adiabatic acoustic couplers composed of cylindrical scatterers.
Read More