A linear push-pull silicon optical modulator
Chi Xiong, Douglas M. Gill, et al.
FiO 2014
We report the performance of NiSi-based heaters integrated with submicrometer silicon waveguides. The heaters were fabricated using a standard complementary metal-oxide-semiconductor (CMOS) silicidation process on a thin silicon slab laterally connected with a silicon rib waveguide. The intrinsic properties of such NiSi waveguide heaters were characterized by using them as thermo-optic phase shifters in a MachZehnder interferometer. The power consumption Pπ for obtaining a π phase shift was measured to be as low as 20 mW, using CMOS-compatible drive voltages. The time constant of the thermo-optic response was less than 2.8 μs. Simulations suggest that a further reduction in the power consumption Pπ is feasible. © 2010 Optical Society of America.
Chi Xiong, Douglas M. Gill, et al.
FiO 2014
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