We present experimental results of an integrated 16-channel, 100-GHz-channe
l-spacing wavelength add-drop in silica, It consists of two interleave-chir
ped waveguide grating routers connected by an array of: waveguides containi
ng thermooptic phase shifters. The fully packaged device has 6.6-7.6-dB fib
er-to-fiber insertion loss and a switching extinction ratio >27 dB (>33 dB
for a single polarization) when used as an add-drop. It is compact, allowin
g for at least four such devices per ii-in-diameter wafer.