Manufacture of DWDM multidielectric narrowband optical filters

摘要

Advanced manufacture of DWDM multidielectric narrow-band optical filters designed for broadband technologies are presented and discussed. Three-cavity structures of 2 nm half- maximum bandwidth pass-band filters in the 1550 nm range with more than 94% at peak transmission and 4 nm width at 20 dB of attenuation is presented. It has been designed for 400 GHz channel spacing.