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Demonstrates a Brillouin laser with 7-Hz linewidth in silicon nitride, suggesting advanced microwave photonic applications.
We demonstrate an intermodal Brillouin laser with an intrinsic RF-linewidth of 7-Hz, multi-wavelength Brillouin lasing and a tunable microwave photonic filter with a 2.2-MHz linewidth in an integrated microdisk in silicon nitride covered with tellurite.
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Klaver et al. (2025) studied this question.
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