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(a) Schematic diagram of the proposed device; (b) the SEM image of the W2 PCW, where the lattice constant, a, and the hole radius, r, are 440 nm and 145 nm, respectively; (c) optical microscope picture of the fabricated W2 PCW with its titanium (Ti)/aluminum (Al) microheater.
(a) TE mode band structure and (b) transmission spectra under different refractive index variations of the W2 PCW with structure parameters: a = 440 nm and r = 145 nm.
(a) Three dimensional temperature distribution with a heating power of P = 59 mW; (b) temperature increase under different applied heating powers.
Microscope picture of the measured W2 PCW with input- and ouput-fibers. Here, the two electrical probes are used to apply a potential on two Al contact pads of the microheater.
(a) Measured transmission spectra under different applied heating powers, here the time frame needed to take data is 24 s; (b) extinction ratio of the switching on- and off-state.
Measured optical response of the output port of the optical switch at a fixed optical wavelength of 1563 nm, as it is driven by (a) 1 kHz and (b) 5 kHz rectangular wave signals.
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