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Optical frequency comb stabilization of a gigahertz semiconductor disk laser
Author(s): Nayara Jornod; Kutan Gürel; Valentin J. Wittwer; Pierre Brochard; Sargis Hakobyan; Stéphane Schilt; Dominik Waldburger; Ursula Keller; Thomas Südmeyer
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Paper Abstract

Semiconductor lasers are a promising technology to make optical comb systems more accessible and cost-efficient. We stabilized the carrier-envelope offset (CEO) frequency of a semiconductor disk laser. The laser was modelocked by a SESAM and generates pulses at a wavelength of 1034 nm. It operates at a repetition frequency of 1.8 GHz. The 270-fs pulses are amplified to 3 W and compressed to 120 fs. A coherent octave-spanning supercontinuum spectrum is generated in a highly nonlinear fiber. Using a standard f-to-2f interferometer, we detect the CEO beat with a signal-to-noise ratio of ~30 dB. By applying a feedback signal to the pump current, the CEO frequency is phase-locked to an external reference.

Paper Details

Date Published: 8 May 2018
PDF: 8 pages
Proc. SPIE 10638, Ultrafast Bandgap Photonics III, 106381W (8 May 2018); doi: 10.1117/12.2318621
Show Author Affiliations
Nayara Jornod, Univ. de Neuchâtel (Switzerland)
Kutan Gürel, Univ. de Neuchâtel (Switzerland)
Valentin J. Wittwer, Univ. de Neuchâtel (Switzerland)
Pierre Brochard, Univ. de Neuchâtel (Switzerland)
Sargis Hakobyan, Univ. de Neuchâtel (Switzerland)
Stéphane Schilt, Univ. de Neuchâtel (Switzerland)
Dominik Waldburger, ETH Zurich (Switzerland)
Ursula Keller, ETH Zurich (Switzerland)
Thomas Südmeyer, Univ. de Neuchâtel (Switzerland)

Published in SPIE Proceedings Vol. 10638:
Ultrafast Bandgap Photonics III
Michael K. Rafailov, Editor(s)

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