Low-noise III-V metasurface based semiconductor vortex laser and rotational Doppler velocimetry

Mohamed Seghilani; Baptiste Chomet; Mikhael Myara; Mohamed Sellahi; Luc Legratiet; Gregoire Beaudoin; Isabelle Sagnes; Philippe Lalanne; Arnaud Garnache

doi:10.1117/12.2253040

7 March 2017 Low-noise III-V metasurface based semiconductor vortex laser and rotational Doppler velocimetry

Mohamed Seghilani, Baptiste Chomet, Mikhael Myara, Mohamed Sellahi, Luc Legratiet, Gregoire Beaudoin, Isabelle Sagnes, Philippe Lalanne, Arnaud Garnache

Author Affiliations +

Proceedings Volume 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII; 100870C (2017) https://doi.org/10.1117/12.2253040
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We demonstrate a surface-emitting laser, based on III-V semiconductor technology with an integrated metasurface, generating vortex-like coherent state in the Laguerre-Gauss basis.²⁴ We use a first order phase perturbation to introduce a weak orbital anisotropy, based on a dielectric metasurface and non-linear laser dynamics, allowing selecting vortex handedness. Moreover, similarly to linear Doppler Shift, light carrying orbital angular momentum L, scattered by a rotating object at angular velocity, experiences a rotational Doppler shift L. We show that this fundamental light matter interaction can be detected exploiting self-mixing in a vortex laser under Doppler-shifted optical feedback, with quantum noise-limited light detection.²⁵ This will allow us to combine a velocity sensor with optical tweezers for micro-manipulation applications, with high performances, simplicity and compactness. Such high performance laser opens the path to widespread new photonic applications.

Citation Download Citation

Mohamed Seghilani, Baptiste Chomet, Mikhael Myara, Mohamed Sellahi, Luc Legratiet, Gregoire Beaudoin, Isabelle Sagnes, Philippe Lalanne, and Arnaud Garnache "Low-noise III-V metasurface based semiconductor vortex laser and rotational Doppler velocimetry", Proc. SPIE 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII, 100870C (7 March 2017); https://doi.org/10.1117/12.2253040

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