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(a) Schematic of the designed SiON ARROW structure, with the optical field of the phase-matched pump and SH modes illustrated; (b) the effective index neff of the pump (red) and SH (blue) mode, plotted as a function of pump wavelength λP ; (c) refractive index (n) variation of ARROW λP , with pump (red) and SH (blue) field profiles (Ey ) overlaid.
Relative waveguide transmission at 1530 (red squares) and 770 nm (blue circles) as a function of length L, yielding estimates of propagation losses αp and αSH .
(a) Sample tuning curves for varying chip length and input polarization; (b) silicon photodiode power plotted against on-chip pump power, and (c) spectrum of pump and SHG for L = 0.92 mm and λP = 1519 nm.
Measured efficiency versus device length (points) and fit of Eq. (2) (line).
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