Dynamic Focusing (Motorized Divergence Controller)

Dynamic Focusing (Motorized Divergence Controller)

MDC is a motorized device which changes beam divergence from approximately -2 mrad (converging) to +4 mrad (diverging). As an addon to 2D galvo scanners this device upgrades automated 2D fabrication setup to 3D. It is achieved by changing focal point

Description:

MDC is a motorized device which changes beam pergence from approximately -2 mrad (converging) to +4 mrad (perging). As an addon to 2D galvo scanners this device upgrades automated 2D fabrication setup to 3D. It is achieved by changing focal point position along z-axis when adjusting beam pergence. MDC can control working distance and focus beam diameter in real time. Device is lighter in weight and smaller in dimensions compared to other solutions in the market. Due to simplified design it is a cost saving and user-friendly device.

Features:

  • Aberration minimized design
  • Plug & play solution (controller included)
  • Suitable for ultrafast picosecond and femtosecond lasers
  • Active position tracking and correction function is available
  • Custom wavelengths are available in the range of 250-3000nm

Standard specifications:

Max input beam diameter Up to 6mm
Focus speed 200 mm/s
Divergence adjustment rate Up to 30mrad/s
Damage threshold >10 J/cm² 10 Hz, 10 ns, 1064nm

>7 J/cm² 10 Hz, 10 ns, 532nm

Resolution < μrad/step
Beam wander <0.5mrad
Dimensions (H x W x L) 26.5 x 55 x 147mm
Weight 340g
Control interface USB, RS232 (available under request)

Typicl Items:

Wave-length, nm Focus range*, mm Divergence adjustment range*, mrad Product ID
343-355 32 from -0.6 to +5.5 MDC-0355
515-532 34 from -0.8 to +4.9 MDC-0532
1030-1064 36 from -0.9 to +4.4 MDC-1064

*Using F=+163 mm F-Theta lens when Ø3 mm (at 1/e2 intensity level). entrance beam has M2=1 and 1 mrad pergence.