Low GDD Ultrafast Mirror, 45° AOI, 50.8 mm, 700-930 nm

The 20B20UF.25 Low GDD Ultrafast Laser Mirror is 50.8 mm in diameter, 9.4 mm thick, and broadband optimized for 700 - 930 nm. This ultrafast mirror is ideal for use with ultrashort pulse lasers as a high reflectance beamsteering mirror at 45° angle of incidence. Careful thin film design and an advanced coating process results in a mirror with maximum reflectivity and bandwidth with minimum effect on pulse dispersion.

Specifications

Technical Specs

Wavelength Region
NIR
Wavelength Range
700-930 nm
Mirror Shape
Round
Diameter
50.8 mm
Material
N-BK7
Coating Type
Broadband Ultrafast Pulse Coating
Coating Code
UF.25
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Wedge
30 ±15 arc min
Angle of Incidence
45° ±3°

Clear Aperture
≥ central 80% of diameter
Back Surface
Commercial Polished
Reflectivity
R_s>99% @ 700-930 nm; R_p>99% @ 730-870 nm
Thickness
9.4 mm
Thickness Tolerance
±0.38 mm
Diameter Tolerance
+0/-0.13 mm
Chamfers
0.38-0.76 mm face width
Chamfers Angle Tolerance
45 ±15°
Cleaning
See How to Clean Optics

Wavelength Region
NIR
Wavelength Range
700-930 nm
Mirror Shape
Round
Diameter
50.8 mm
Material
N-BK7
Coating Type
Broadband Ultrafast Pulse Coating
Coating Code
UF.25
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Wedge
30 ±15 arc min
Angle of Incidence
45° ±3°

Clear Aperture
≥ central 80% of diameter
Back Surface
Commercial Polished
Reflectivity
R_s>99% @ 700-930 nm; R_p>99% @ 730-870 nm
Thickness
9.4 mm
Thickness Tolerance
±0.38 mm
Diameter Tolerance
+0/-0.13 mm
Chamfers
0.38-0.76 mm face width
Chamfers Angle Tolerance
45 ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

3D Product Models

Download CAD Files

Other

20B20UF.25 RoHS Certificate(265.9 kB, PDF)
20B20UF.25_ROHS2-2021.pdf(280 kB, PDF)

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