title: Low power and compact reconfigurable multiplexing devices based on silicon microring resonators.
abstract: We present thermally reconfigurable multiplexing devices based on silicon microring resonators with low tuning power and low thermal crosstalk. Micro-heaters on top of the rings are employed to tune the resonant wavelengths through the thermo-optic effect of silicon. We achieve a low tuning power of 21 mW per free spectral range for a single ring by exploiting thermal isolation trenches close to the ring waveguides. Negligible thermal crosstalk is demonstrated for rings spaced by 15 microm, enabling compact multiplexing devices. The tuning time constant is demonstrated to be less than 10 micros.
authors.affiliation: Kotura Inc., Monterey Park, CA 91754, USA. pdong@kotura.com
authors.forename: Po
authors.initials: P
authors.lastname: Dong
authors.forename: Wei
authors.initials: W
authors.lastname: Qian
authors.forename: Hong
authors.initials: H
authors.lastname: Liang
authors.forename: Roshanak
authors.initials: R
authors.lastname: Shafiiha
authors.forename: Ning-Ning
authors.initials: NN
authors.lastname: Feng
authors.forename: Dazeng
authors.initials: D
authors.lastname: Feng
authors.forename: Xuezhe
authors.initials: X
authors.lastname: Zheng
authors.forename: Ashok V
authors.initials: AV
authors.lastname: Krishnamoorthy
authors.forename: Mehdi
authors.initials: M
authors.lastname: Asghari
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006361:Heating / Q000295:instrumentation*; D007909:Lenses; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D008904:Miniaturization; D012825:Silicon; D013696:Temperature; D014159:Transducers
chemical_list: D012825:Silicon