… of OAM fiber design, the generation technology of OAM beams … an all-fiber fusion system
based on an optical fiber coupler, … The topological charge of the OAM beam can be tuned from −…

… Moreover, we demonstrate all-fiber OAM 1 × 2 coupler that … best fused-taper ratios are all
about 0.049 to generate OAM … of OAM beam at the output ports of the all-fiber OAM couplers …

… achieved the all-fiber visible vortex laser generation at 548.9 … Finally, the fused coupler is
packaged with a heat shrinkable … purity of the 635-nm vortex beams with OAM ±1 is 91.4% and …

… , achieving orbital angular momentum (OAM) MDM with topological charges ranging from 0
to 5. … –MSC2 to adjust the phase difference within the mode groups to generate OAM modes. …

… The coupling ratio of LPFG from HE 11 mode to OAM mode exceeds 16 dB, and the
mode … In conclusion, an all-fiber laser that generates stable OAM beams is proposed and …

… based on development of mode selective couplers with fusion … We used the fiber-based
vortex beam generator to excite OAM … of the butt-coupling all-fiber system for generation and …

… the progress of all-fiber OAM generation techniques. The … OAM beam and was combined
with the OAM beam using a … OAM generator by using an all-fiber mode selective coupler was …

… OAM mode coupler using beam propagation, which coupled … Then we propose an all-fiber
OAM MSC based on double … destroyed after the fused tapering, the OAM mode cannot be …

… all-fiber mode selective couplers are fabricated by fusing pre-… of OAM modes with the dark
region at the beam center. The … the mode coupling between the two utilized OAM modes after …

… based on development of mode selective couplers with fusion … We used the fiber-based
vortex beam generator to excite OAM … of the butt-coupling all-fiber system for generation and …