We propose and numerically test,to our knowledge,a novel concept for asymmetric vortex beam generation in a degenerate vertical external cavity surface emitting laser(DVECSEL).The method is based on a phase-locking ri...We propose and numerically test,to our knowledge,a novel concept for asymmetric vortex beam generation in a degenerate vertical external cavity surface emitting laser(DVECSEL).The method is based on a phase-locking ring array of lasers created inside a degenerate cavity with a binary amplitude mask containing circular holes.The diffraction engineering of the mask profile allows for controlling the complex coupling between the lasers.The asymmetry between different lasers is introduced by varying the hole diameters corresponding to different lasers.展开更多
基金Science and Engineering Research Board(SIR/2022/00019,CRG/2021/00306)QuanTEduPAUSE.
文摘We propose and numerically test,to our knowledge,a novel concept for asymmetric vortex beam generation in a degenerate vertical external cavity surface emitting laser(DVECSEL).The method is based on a phase-locking ring array of lasers created inside a degenerate cavity with a binary amplitude mask containing circular holes.The diffraction engineering of the mask profile allows for controlling the complex coupling between the lasers.The asymmetry between different lasers is introduced by varying the hole diameters corresponding to different lasers.
