A directional-coupler waveguide with a liquid-filled microfluidic top cladding is simulated to yield over 45 dB tuning range with excess loss below 0.06 dB.
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Design for tunable optofluidic optical coupler with large dynamic range
A directional-coupler waveguide with a liquid-filled microfluidic top cladding is simulated to yield over 45 dB tuning range with excess loss below 0.06 dB.