Highly coherent modeless broadband VECSEL

Mikhael Myara; Mohamed Sellahi; Grégoire Beaudoin; Isabelle Sagnes; Arnaud Garnache

doi:10.1117/12.2252584

22 February 2017 Highly coherent modeless broadband VECSEL

Mikhael Myara, Mohamed Sellahi, Grégoire Beaudoin, Isabelle Sagnes, Arnaud Garnache

Proceedings Volume 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII; 100870A (2017) https://doi.org/10.1117/12.2252584
Event: SPIE LASE, 2017, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Mikhael Myara, Mohamed Sellahi, Grégoire Beaudoin, Isabelle Sagnes, and Arnaud Garnache "Highly coherent modeless broadband VECSEL", Proc. SPIE 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII, 100870A (22 February 2017); https://doi.org/10.1117/12.2252584

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