optical couplers,WDM,dual-wavelength

In order to realize derivative spectrum, a wavelength-intensity splitter has been designed to obtain two light beams with slim difference in wavelength.

根据光谱导数原理,设计了波长光强分束器,它能对光束实现光强和波长的空间分离,获得满足一阶光谱导数条件的两束光。