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(1) Schematic top layout and (b) cross-sectional view of a SOI waveguide-based two-terminal Ni-silicide NPM SBCPT, which is exactly the same as the SBPD except the different doping types under the left electrode: for SBCPT and for SBPD.
Current-voltage characteristics of a two-terminal NPM SBCPT and SBPD counterpart under dark environment and illuminated by of 1550 nm light coupled through a fiber to the waveguide. The optical loss before reaching the detector is assumed to be .
(a) Variations of reponsivity vs wavelength for the two-terminal SBCPT at 5, 2, and bias and (b) variation of photocurrent vs polarization angle from TE mode to TM mode for the 5 V biased SBCPT illuminated by 1520, 1550, and 1620 nm light.
Normalized impulse responses at 1550 nm pulsed laser light for the SBCPT at and the SBPD counterpart at 5 V. The inset shows the 3 dB bandwidths extracted from Fourier transform of the temporal responses as a function of the applied voltage.
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