Multifocal lens for lasers

Multi-focus products, Focus shaping

ØFunction:After the laser beam (single mode or multi-mode) incident on the multi-focal DOE element and focusing mirror, when irradiated on the transparent object being cut, multiple focal points can be obtained simultaneously in the direct line of propagation direction.

ØApplication: Laser deep cutting, such as laser glass cutting, sapphire cutting, transparent film cutting and so on.

ØProduct parameter range:

DOE design	2-8 grayscale	Diffraction efficiency	86%-96%
Wavelength range	193nm ~10.6μm	Material	Polymer glass、, plastic, fused silica, zinc selenide, sapphire, silicon
Size	≤150mm	Coating	Anti-reflective film (optional)

ØTypical model reference:

Number	Wavelength [nm]	Number of focal points [a]	Focus distance at both ends[μm]
BFS-304	1064	2	13.3
BFS-307	1064	5	451.3
BFS-313	1064	11	1213.2
BFS-316	1064	15	1757.8