1/spl times/N splitters on silica substrates with low polarization dependent loss

Summary form only given. We report the fabrication of flame hydrolysis deposition silica waveguide circuits on quartz with GeO/sub 2/ as the index-raising dopant for the core. Silica waveguides doped with GeO/sub 2/ are known to have much lower loss than those doped with TiO/sub 2/. 1xN splitters have been processed and their performance is discussed.