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Widely-tunable and narrow-linewidth hybrid-integrated diode laser at 637 nm

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arxiv 2404.05325 v1 pith:OXVT4D4B submitted 2024-04-08 physics.optics

Lisa V. Winkler , Kirsten Gerritsma , Albert van Rees , Philip P. J. Schrinner , Marcel Hoekman , Ronald Dekker , Adriano R. do Nascimento Jr. , Peter J. M. van der Slot
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Christian Nölleke Klaus-J. Boller
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classification physics.optics
keywords lasersdiodefiberhybrid-integratedintegrationintrinsicpowertuning
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We present hybrid-integrated extended cavity diode lasers tunable around 637 nm, with a gain-wide spectral coverage of 8 nm. This tuning range allows addressing the zero-phonon line of nitrogen vacancy centers and includes the wavelength of HeNe lasers (633 nm). The lasers provide wide mode-hop free tuning up to 97 GHz and a narrow intrinsic linewidth down to 10 kHz. The maximum output power is 2.5 mW in a single-mode fiber, corresponding to an on-chip power of 4.0 mW. Full integration and packaging in a standard housing with fiber pigtails provide high intrinsic stability and will enable integration into complex optical systems.

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  1. Monolithic piezoelectrically tunable hybrid integrated laser with sub-fiber laser coherence

    physics.optics 2024-11 conditional novelty 6.0 of 10

    A hybrid integrated silicon nitride laser platform demonstrates a 1.38 kHz integrated linewidth on one variant and flat piezo frequency tuning to 400 kHz on another, with intrinsic linewidths near 3 Hz.

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