We report on demonstration of non-diffracting (Bessel) beams from Electrically Pumped Vertical External Cavity Surface Emitting Lasers (EP-VECSELs), with output powers ranging up to hundreds of milliwatts and central lobe diameters of 10-100 μm with propagation lengths up to few tens of centimeters. To our knowledge, this is the best result for Bessel beams generated from semiconductor light sources and is comparable to that achievable from vibronic lasers.
|Journal||Proceedings of SPIE - International Society for Optical Engineering|
|Publication status||Published - 21 Feb 2011|
|Event||SPIE LASE 2011 - San Francisco, United States|
Duration: 22 Jan 2011 → 27 Jan 2011