WDM filter modules in compact, low-cost plastic packages for byte-wide multimode fibre ribbon cable data links

WDM filter modules are presented for multimode fibre ribbon cables which employ a simple package and provide low crosstalk and sharp passband edges, suitable for 10 nm channel spacing. These devices exhibit low insertion loss (1.6 dB average) and good wavelength uniformity (/spl plusmn/0.8 nm).