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Proceedings Paper

Highly coherent modeless broadband VECSEL
Author(s): Mikhael Myara; Mohamed Sellahi; Grégoire Beaudoin; Isabelle Sagnes; Arnaud Garnache
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Paper Abstract

We report on the highly coherent modeless broadband continuous wave operation of a semiconductor vertical-external cavity-surface-emitting laser. Its design is based on a frequency-shifted-feedback scheme provided by an acousto-optic frequency shifter inserted into the cavity. Chirping the optical wave inside the cavity leads to the elimination of the traditional spectral resonances occurring in usual laser cavities, leading to a wideband (>330GHz here) continuous spectrum. The light is of high coherence concerning the transverse mode and the polarisation state, as well as in the time domain (time coherence ≈ 19μs, like a 1MHz DFB) in spite of its wideband emission.

Paper Details

Date Published: 22 February 2017
PDF: 14 pages
Proc. SPIE 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII, 100870A (22 February 2017); doi: 10.1117/12.2252584
Show Author Affiliations
Mikhael Myara, Institut d'Electronique du Sud, Univ. Montpellier (France)
Mohamed Sellahi, Institut National de Recherche en Sciences et Technologies Pour l'Environnment et l'Agriculture (France)
Grégoire Beaudoin, Lab. de Photonique et de Nanostructures (France)
Isabelle Sagnes, Lab. de Photonique et de Nanostructures (France)
Arnaud Garnache, Institut d'Electronique du Sud, Univ. Montpellier (France)


Published in SPIE Proceedings Vol. 10087:
Vertical External Cavity Surface Emitting Lasers (VECSELs) VII
Michael Jetter, Editor(s)

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