Tunable Generation of Structured Light Beams with Fiber Grating
Analysis
Key Takeaways
- •Demonstrates tunable generation of structured light beams (vortex, vector, flat-top).
- •Utilizes a mechanically induced long-period fiber grating for beam manipulation.
- •Achieves propagation-invariant vector flat-top beams.
- •Works in both NIR (1060nm) and visible (532nm) wavelengths.
- •Offers potential for applications in optical manipulation and imaging.
“By precisely tuning the intensity ratio between fundamental and doughnut modes, we arrive at the generation of propagation-invariant vector flat-top beams for more than 5 m.”