High performance optical wavelength multiplexer–demultiplexer

Autor: Dobrowolski, J. A., Hara, E. H., Sullivan, Brian T., Waldorf, A. J.
Zdroj: Applied Optics; July 1992, Vol. 31 Issue: 19 p3800-3806, 7p
Abstrakt: The principle of an optical wavelength multiplexer–demultiplexer is described in which the signals undergo repeated reflections from special filter elements that can be designed for a wide range of cross-talk ratios. The insertion losses of these units can be quite small and they can be implemented to provide simultaneous multichannel two-way transmission. In a preliminary investigation of an experimental prototype an insertion loss of 0.5 dB and a cross talk of −35 dB were demonstrated. The multiplexer–demultiplexer is expected to have a long life and high reliability.
Databáze: Supplemental Index