Generation of broadband optical frequency combs from hybrid integrated InP-Si3N4 diode lasers

Research output: Contribution to conferencePosterAcademic

Abstract

We present the generation of broadband optical frequency combs from hybrid integrated InP semiconductor optical amplifiers and low-loss Si3N4 waveguides. A small fraction of the amplifier is reversed biased to achieve passive mode-locking, while the Si3N4 waveguide allows to extend the cavity to a roundtrip length of up to 15 cm. The generated frequency comb covers a 25 nm broad spectrum, at a 3 dB level (Fig.1a), with more than 1600 comb-lines. Mode-locking is demonstrated at a 2 GHz repetition rate with a RF linewidth down to 110 kHz, at a 3 dB level (Fig.1c). With such properties, hybrid integrated diode lasers show great promise in applications such as integrated microwave photonics or metrology.
Original languageEnglish
Publication statusPublished - 12 Oct 2021
Event44th Annual Meeting NNV AMO Lunteren 2021 - De Werelt, Lunteren, Netherlands
Duration: 12 Oct 202113 Oct 2021
Conference number: 44
https://www.ru.nl/amolunteren/

Conference

Conference44th Annual Meeting NNV AMO Lunteren 2021
Country/TerritoryNetherlands
CityLunteren
Period12/10/2113/10/21
Internet address

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