We demonstrate integrated distributed Bragg reflector lasers on a hybrid platform composed of silicon nitride waveguides coated with erbium-doped tellurium dioxide. The asymmetrical laser cavities are enclosed by gratings patterned on the 2.2-cm-long waveguide walls. Cavities with varying grating strengths are studied, yielding laser efficiencies up to 0.36%, a minimum lasing threshold of 13 mW, and emission wavelengths between 1530 and 1565 nm.

We show, for the first time, stimulated Brillouin scattering in tellurite covered silicon nitride waveguides. In the standard geometry the measured peak gain coefficient is 4.5 m−1W−1. We further enhance the Brillouin gain by applying cladding engineering, reaching a peak gain coefficient of 8.5 m−1W−1

We show, for the first time, stimulated Brillouin scattering in tellurite covered silicon nitride waveguides. In the standard geometry the measured peak gain coefficient is 4.5 m−1W−1. We further enhance the Brillouin gain by applying cladding engineering, reaching a peak gain coefficient of 8.5 m−1W−1

We report on octave-spanning supercontinuum generation in a 400-nm-thick silicon nitride waveguide coated with tellurite glass. An octave-spanning supercontinuum is achieved at a low peak power of 482 W using a 100-fs laser centered at 1565 nm.

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