Justinas Pupeikis,1 Benjamin Willenberg,1 Sandro L. Camenzind,1 Abdelmjid Benayad,2 Patrice Camy,2 Christopher R. Phillips,1 Ursula Kellerhttps://orcid.org/0000-0002-1689-80411
1ETH Zurich (Switzerland) 2Univ. de Caen Normandie (France)
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We present a new method for multiplexing single laser cavities to support a pair of noise-correlated, yet cavity length independent modes. These modes share all intracavity components and take a near-common path, but do not overlap on any active elements. With a SESAM we passively modelocked both independent modes and obtain dual optical frequency comb operation. The demonstrated 80-MHz laser delivers more than 2.1 Watts of average power per comb with shorter than 140 fs pulse centered at 1051 nm. The relative timing jitter between these two pulse trains is 1.8 fs (integration bandwidth from 100 Hz – 100 kHz).
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Justinas Pupeikis, Benjamin Willenberg, Sandro L. Camenzind, Abdelmjid Benayad, Patrice Camy, Christopher R. Phillips, Ursula Keller, "Novel low-noise 80-MHz dual-comb solid-state laser," Proc. SPIE PC11980, Solid State Lasers XXXI: Technology and Devices, PC1198002 (4 March 2022); https://doi.org/10.1117/12.2608177