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We present reconfigurable CMOS-compatible silicon-photonic lattice-filters consisting of Mach-Zehnder structures and ring resonators configured as high resolution bandpass and notch filter shapes. Arbitrary filter synthesis and CMOS-compatible fabrication process are also discussed.
We demonstrate that PMMA upper cladding on the slotted silicon micoring resonators can reduce the resonance thermal dependence from 91 pm/deg to 27 pm/degC. UV trimming can shift the resonance wavelength 0.5 nm.
This letter experimentally demonstrates significant reduction in the resonance thermal sensitivity of the slotted silicon microring resonators by exploiting polymethyl methacrylate (PMMA) as upper-cladding. We investigate the resonance temperature dependence on the slot width with and without PMMA upper-cladding. The experimental results show that the temperature dependence is reduced from 91 pm/degC...
We demonstrate an on-chip toroidal microcavity nanocrystal quantum dot laser with a threshold energy below 10 femto-Joules at room temperature, a factor of 1 million lower than previously reported for strongly-confined, nanocrystal quantum dot lasers.
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