Vacuum Cell & Spatial Filter

About GEOLA Digital Ltd.

• Type: Other
• Cell Material: Borosilicate Glass
• Cell Diameter: 8, 16, 20, 25, 38 mm
• Cell Length: from 100 to 1000 mm
• Windows Material: BK7 or UVFS
• Cell Windows Geometry: || or / \ or \\
• Mechanical X&Y Adjustment: X&Y / X / Y

Vacuum Spatial Filter (VSF), is a vacuumized borosilicate glass cell at which center lays titanium pinhole. Spatial filter, a usual technique used to improve laser beam quality by removing noise from laser beams and resulting a smooth intensity profile. Since pulsed lasers have much higher pike power, vacuum cell is the only alternative, therefore a microscope objective cannot be used to focus pulsed laser beams in to a pinhole because of COD.

Vacuum cells (VC), vacuumized borosilicate glass cell with vacuum of up to 10-5 mbar level. Pulsed laser manufacturers using Relay imaging systems to control diffraction and preserving the spatial structure of laser beam. The focal plane of Kepler telescope is weakest part of such systems frequently leading to air-breakdown. The best solution is a focal plane being situated in the glass Vacuum Cell (VC). The cells can be manufactured with pinhole at the center (VSF) or without pinhole inside the cell (VC).