Application of dielectric thin film for manufacture of wavelength division multiplexer using interference filter and grade index lens

摘要

The present invention relates to the manufacture of a filter wavelength division multiplexer (FWDM) using a dielectric thin film, and in particular to improve the isolation of the reflection stage using a dielectric thin film. The present invention relates to a dielectric thin film for manufacturing a wavelength divider using an interference filter and a green lens.