A Y-branch multi/demultiplexer by K/sup +/ and Ag/sup +/ ion-exchange was optimally designed, using the 2-D beam propagation method (BPM) and successfully fabricated for /spl lambda/=1.31 and 1.55 /spl mu/m. The measured extinction ratios of our preliminary devices are about 20 dB.
No takes yet. Share an insight, caveat, or question.
Xiang et al. (1996) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: