Abstract

Waveguide Bragg gratings are attracting increased attention as narrow-band filters to separate different channels in closely-spaced wavelength-division-multiplexing (WDM) systems. In fact grating filters directly written into Ge-doped optical fibers are already available and exhibit quite attractive features. However, the added structural flexibility inherent in integrated optical waveguides can offer an even increased variety of device and subsystem architecture and performance.

© 1996 Optical Society of America