15 February 2018 Carrier-envelope offset frequency stabilization of an ultrafast semiconductor laser
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Abstract
We present the self-referenced stabilization of the carrier-envelope offset (CEO) frequency of a semiconductor disk laser. The laser is a SESAM-modelocked VECSEL emitting at a wavelength of 1034 nm with a repetition frequency of 1.8 GHz. The 270-fs pulses are amplified to 3 W and compressed to 120 fs for the generation of a coherent octavespanning supercontinuum spectrum. A quasi-common-path f-to-2f interferometer enables the detection of the CEO beat with a signal-to-noise ratio of ~30 dB sufficient for its frequency stabilization. The CEO frequency is phase-locked to an external reference with a feedback signal applied to the pump current.
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Nayara Jornod, Nayara Jornod, Kutan Gürel, Kutan Gürel, Valentin J. Wittwer, Valentin J. Wittwer, Pierre Brochard, Pierre Brochard, Sargis Hakobyan, Sargis Hakobyan, Stéphane Schilt, Stéphane Schilt, Dominik Waldburger, Dominik Waldburger, Ursula Keller, Ursula Keller, Thomas Südmeyer, Thomas Südmeyer, } "Carrier-envelope offset frequency stabilization of an ultrafast semiconductor laser", Proc. SPIE 10515, Vertical External Cavity Surface Emitting Lasers (VECSELs) VIII, 105150K (15 February 2018); doi: 10.1117/12.2288974; https://doi.org/10.1117/12.2288974
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