Scanning Mirrors
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Download Optics for Nd: YAG Lasers Datasheet (PDF, 172 KB) |
Tydex offers scanning mirrors of custom-made shape to achieve high stable reflective parameters in the limited range of AOI. In a system a couple of mirrors can be utilized that allows deviating incident beam into two flats. So called X-mirrors and Y-mirrors are emphasized.
Specification:
| Substrate material: | KU-1, Si |
| Surface figure @ 633nm: | l/10 |
| Surface quality, scr/dig: | 40/20 |
| Clear aperture: | exceeds central 85% of dimension |
| Dimensional tolerance, mm: | ± 0.25 |
| Thickness tolerance, mm: | ± 0.25 |
| Wedge, arc.min | <=5 |
| Range of scanning angels: | user specified |
| Coating: | dielectric, metal-dielectric, metallic; user specified |
| Damage threshold, J/cm2: | 2-5, depending on coating spec. |
| No. | Title | Overall dimensions, mm | Thickness C, mm | Range of AOI, arc. deg | |
| A | B | ||||
| 1 | X-mirror | 18 | 11.5 | 1.5 | 45 |
| 2 | Y-mirror | 22 | 15.5 | 1.5 | 45 |
| 3 | mirror | 65 | 55 | 10 | 30-45 |
| 4 | mirror | 75 | 40 | 10 | 30-45 |
| 5 | mirror | 80 | 30 | 10 | 30-45 |
Here is an example of the scanning mirror coating:
Fig. 1 Si scanning mirror, HR (R>99%) @1064 nm and (R>90%) @633 nm AOI=45°.
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