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Wloptical Co., Ltd
Wloptical Co., Ltd
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Partial reflection Coating

Partial reflection Coating

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Partial Reflection (PR) coatings provide attenuation functions and are generally applied to output mirrors of laser cavity. Our company can design the PR coating with reflectance from 10% to 99.7% to achieve the desired performance.

Wideband PR coatings are typically used at 45 degrees angle to the beam splitting of wideband light, such as 50/50,40/60,30/70 with error at around 5%.

There is a kind of super wideband PR coatings that can split beam in a wide light region from UV, visible to infrared. This coating is widely used in optical components.


Substrate Substrate

fused silica, BK7 and so on

Surface Figure

<λ/10 @ 632.8nm

Surface Quality

40-20

Chamfer

0.25mm* 45deg

Coating Material

Electron beam deposited dielectric multi-layers

Incident

0deg, 45deg

Clear Aperture

> Central 90% of diameter


Wavelength (nm)

Resldual Reflectance

Wavelength (nm)

Resldual Reflectance

266

50%

355

50%

650

70%

1064

10%

400-700

50%

420-680

50%

650-1050

30%

1050-1620

10%



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