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Sensitivity analysis and optimization of sub-wavelength optical gratings using adjoints
Sensitivity analysis sub-wavelength optical gratings
2015/8/6
Numerical optimization of photonic devices is often limited by a large design space: the finite-differences gradient method requires as many electric field computations as there are design...
WDM Multi-Channel Filter Based On Sampled Gratings In Silicon-on-Insulator
Integrated optics devices Wavelength filtering devices
2015/5/22
The design and fabrication of sampled gratings on silicon-on-insulator rib waveguides is presented. A multiple reflection up to 20 channels with a spacing of 0.78 nm is demonstrated, with potential fi...
A “Linear” High-Contrast Gratings Hollow-Core Waveguide and its System Level Performance
Gratings Nonlinear Systems Waveguides
2015/6/9
The high-contrast gratings assisted hollow-core waveguide demonstrates an ultra-low nonlinearity (<6×10 -13 /W/m). Digital and analog system-level simulations further show that the waveguide does not...
Full-mesh Wavelength Routing over Interconnected AWG-STARs Employing Coprime-Channel-Cycle Arrayed-Waveguide Gratings
Wavelength Interconnected AWG-STARs Coprime-Channel-Cycle Arrayed-Waveguide Gratings
2015/7/17
We propose and demonstrate a novel technique for interconnecting AWG-based wavelength routing networks. Experiments successfully demonstrated that this enables us to establish full-mesh wavelength pat...
Broadening Adjustable Range on Post-Fabrication Resonance Wavelength Trimming of Long-Period Fiber Gratings by Heating
Broadening Adjustable Range Post-Fabrication Resonance Wavelength Long-Period Fiber Gratings
2015/7/16
The adjustable range of resonance wavelengths of long-period gratings was broadened toward the blue side by heating, and the mechanism was studied. The large blue shift, 41 nm, was obtained by heating...