Dielectric Mirror, Laser Line, Zerodur, 25.4 mm, λ/20, 1520-1580nm

The 10Z40DM.8 Laser Line Dielectric mirror is a highly efficient reflector optimized for a narrow 1520 to 1580 nm wavelength range. This 1 inch (25.4 mm) diameter mirror is made from a 6.0 mm thick Zerodur substrate. Zerodur is a glass-ceramic material where thermal expansion is nominally zero. This extra stability can be critical for applications requiring diffraction limited performance. The DM.8 coating is designed for use with diode lasers and has a center wavelength of 1550 nm. The coating achieves greater than 99% reflectance, from 0–45° angle of incidence, for any polarization. This multilayer dielectric coating is extremely durable, making it resistant to damage from repeated cleaning. This mirror has a λ/20 surface flatness and a 10-2 surface quality.

Specifications

Technical Specs

Wavelength Region
IR
Wavelength Range
1520-1580 nm
Mirror Shape
Round
Diameter
25.4 mm
Material
Zerodur^® or equivalent
Coating Type
Laser Line Dielectric
Coating Code
DM.8
Reflectivity
R_s, R_p>99% @ 1520-1580 nm
Surface Quality
10-2 scratch-dig
Surface Flatness
λ/20 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Thickness
6.0 mm
Thickness Tolerance
±0.25 mm
Diameter Tolerance
+0/-0.13 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Damage Threshold
500 W/cm² CW, 10 J/cm² for 10 nsec pulses @ 1540 nm

Wavelength Region
IR
Wavelength Range
1520-1580 nm
Mirror Shape
Round
Diameter
25.4 mm
Material
Zerodur^® or equivalent
Coating Type
Laser Line Dielectric
Coating Code
DM.8
Reflectivity
R_s, R_p>99% @ 1520-1580 nm
Surface Quality
10-2 scratch-dig
Surface Flatness
λ/20 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Thickness
6.0 mm
Thickness Tolerance
±0.25 mm
Diameter Tolerance
+0/-0.13 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Damage Threshold
500 W/cm² CW, 10 J/cm² for 10 nsec pulses @ 1540 nm

Resources & Downloads

3D Product Models

Other

10Z40DM.8 RoHS Certificate(703.8 kB, PDF)
DM.8 Raw Data.xlsx(57.3 kB, XLSX)

Related Products

Compatible

Description	Compatibility
Mirror Mount, Classic, Corner, 1.0 in., 3 Knobs	UNIVERSAL	Learn More
Mirror Mount, Pint-Sized, Corner, 1.0 in., 3 Allen-Keys	UNIVERSAL	Learn More
Mirror Mount, ULTIMA<sup>®</sup>, Clear Edge, 1.0 in., 2 Locking Knobs	UNIVERSAL	Learn More

Frequently Purchased Together

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		Cube Beamsplitter, Polarizing, 12.7 mm, 1550 nm Laser Line	UNIVERSAL				Learn More
		Aspheric Objective Lens, 16x, 11.0 mm EFL, 1050-1600 nm	UNIVERSAL				Learn More

Need help?

Contact an Applications Specialist by sending us an email