Šolc-Type Wavelength Filters Based on TETM Mode Conversion Utilizing Periodically Poled Ti-Diffused Lithium Niobate Channel Waveguides
Figure 1
The schematic diagram of folded Šolc-type wavelength filter. M couples of half-wave plates are held in two crossed polarizers. The optic axes of the plates aligned at angles and with respect to the axis in every couple.