Passive fiber telecommunication applications, namely, DWDM (dense wavelength division multiplexing) multiplexers and demultiplexers; DWDM interleavers; optical variable attenuators; optical DWDM add/drop multiplexers; optical circulators, and fiber optic dispersion compensators

Spectral interleaver for dense wavelength division multiplexing multiplexer and demultiplexer applications in fiber optic communication