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Stepped Window is an optical window plate with a stepped structure, generally made of optical materials such as quartz glass and sapphire.
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Fuzhou Chinaproduct orgin :
ChinaZnSe/Ge/Sapphire IR Optical Glass Stepped Windows
By designing different step heights, widths, and shapes, specific optical functions such as optical filtering and beam shaping can be achieved, while also increasing the mechanical strength and stability of the window panel. Commonly used in the field of laser technology as an optical component in laser resonators, it can optimize the quality and characteristics of laser beams.
Basic Structure:
1. A step-like structure is machined on the surface or edge of the window sheet to form areas of varying thickness.
2. Steps can be single or multiple layers, with thickness differences ranging from a few microns to several millimeters.
Common forms:
1. Center step: the center area of the window is raised or depressed.
2. Edge step: thinning of one side of the window or the surrounding area.
Functions:
1. Introduce a fixed optical range difference through the step for phase modulation or interferometry.
2. Different thickness areas can be matched with diaphragms to screen the beam.
3. Step structure is convenient for window mounting or docking with other components.
Specification | |||||
Material | Fused Silica,, SCHOTT, OHARA, CDGM,Infrared Material | ||||
Size | 0.5-600mm | ||||
Dimension Tolerance |
+0.0, -0.1mm |
||||
Thickness Tolerance |
± 0.1mm |
||||
Parallelism |
1' (Standard), 10" (High Precision) |
||||
Flatness | 1λ to λ/20 @632.8nm | ||||
Surface Quality | 60/40(Standard), 10/5(High Precision) | ||||
Effective Aperture | 90% | ||||
Coating | Upon requirement |
Applications:
1.Interferometry;
2.Laser Shaping;
3.Multilayer optical systems.
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