Abstract
A platform for high index-contrast integrated photonics based on tantalum pentoxide submicrometer waveguides on silicon substrates is introduced. The platform allows demonstration of microring resonators with loaded quality factor, , of 67,000 and waveguides with a propagation loss of . Grating couplers, with an insertion loss of per coupler and 3 dB bandwidth of , are also demonstrated and integrated with microring resonators.
© 2014 Optical Society of America
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