Continuous wave-pumped wavelength conversion in low-loss silicon nitride waveguides

• In this Letter we introduce a complementary metal-oxide semiconductor (CMOS)-compatible low-loss Si3N4 waveguideplatform for nonlinear integrated optics. The waveguide has a moderate nonlinear coefficient of 285 W∕km,but the achieved propagation loss of only 0.06 dB∕cm and the ability to handle high optical power facilitate anoptimal waveguide length for wavelength conversion. We observe a constant quadratic dependence of the four-wavemixing (FWM) process on the continuous-wave (CW) pump when operating in the C-band, which indicates that thewaveguide has negligible high-power constraints owing to nonlinear losses. We achieve a conversion efficiency of−26.1 dB and idler power generation of −19.6 dBm. With these characteristics, we present for the first time, to the best of our knowledge, CW-pumped data conversion in a non-resonant Si3N4 waveguide.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

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