Bevel:

Protective as needed

Clear Aperture CA (mm):

22.00

Coating:

BBAR (1000-1100nm)

Coating Specification:

R_avg ≤0.3% @ 1000 - 1100nm
R_avg ≤0.1% @ 1020 - 1070nm

Diameter (mm):

25.40 +0.00/-0.10

Thickness (mm):

3.18 ±0.20

Parallelism (arcmin):

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Sapphire (Al₂O₃)

Surface Quality:

10-5

Transmitted Wavefront, P-V:

≤λ/10 over Clear Aperture

Type:

Protective Window

Wavelength Range (nm):

1000 - 1100

Birefringence (n_o-n_e):

Axis Orientation:

C-axis

Young's Modulus (GPa):

435

Coefficient of Thermal Expansion CTE (10^-6/°C):

8.8

Density (g/cm³):

3.97

Index of Refraction n_d:

1.77

Poisson's Ratio:

0.27

Abbe Number (v_d):

72.24

Edges:

Fine Ground

Regulatory Compliance

RoHS:

Compliant

Product Family Description

C-Axis Cut Sapphire to Eliminate Birefringence
10-5 Surface Quality and λ/10 TWFD
Uncoated or IBS AR Coated for 1000-1100nm
Ideal for High Power Laser Applications

Laser Grade C-Axis Sapphire Windows are precision optical windows cut to the C-axis of sapphire to eliminate the inherent birefringent properties of the material. C-axis sapphire, also referred to as C-plane sapphire or zero degree sapphire, provides high transmission from the ultraviolet (UV) to the mid-infrared, excellent chemical resistance, and high surface hardness second only to diamond. Featuring laser grade 10-5 surface quality and λ/10 transmitted wavefront distortion (TWFD), these windows are ideal for use in laser applications or for integration into laser systems. Laser Grade C-Axis Sapphire Windows are available uncoated or with an ion-beam sputtered (IBS) antireflection (AR) coating for 1000 - 1100nm, ideal for Nd:YAG, Yb:doped fiber, or Yb:YAG laser applications. Standard imperial sizes facilitate drop-in replacement into existing laser systems; please contact us if your application requires a Laser Grade C-Axis Sapphire Window with a custom size or coating.

Title	Type	Stock Number	Price	Buy
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4	Fixed	#13-787	£13.94 Qty 5+ £13.24 Request Quote	In Stock ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32	Fixed	#13-788	£13.94 Qty 5+ £13.24 Request Quote	3-4 days ×
25.4mm Optic Dia., Thin Mirror Mount, M4	Fixed	#13-590	£14.35 Qty 5+ £13.61 Request Quote	3-4 days ×
25.4mm Optic Dia., Thin Mirror Mount, 8-32	Fixed	#13-591	£14.35 Qty 5+ £13.61 Request Quote	3-4 days ×
25.4mm Optic Dia., 10mm Max Optic Thickness, Optic Mount	Fixed	#64-561	£22.14 Qty 10+ £19.93 Request Quote	3-4 days ×
25.4mm Optic Dia., 13mm Max Optic Thickness, Optic Mount	Fixed	#64-562	£22.14 Qty 10+ £19.93 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., E-Series Kinematic Mount	Adjustable - Tip-Tilt	#15-866	£29.90 Qty 10+ £28.40 Request Quote	In Stock ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4, Quick Start Optical Mounts	Fixed	#17-536	£42.64 Request Quote	Contact Us ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32, Quick Start Optical Mounts	Fixed	#17-537	£42.64 Request Quote	3-4 days ×
25.4mm Optic Dia., Thin Mirror Mount, M4, Quick Start Optical Mounts	Fixed	#17-534	£43.05 Request Quote	Contact Us ×
25.4mm Optic Dia., Thin Mirror Mount, 8-32, Quick Start Optical Mounts	Fixed	#17-535	£43.05 Request Quote	3-4 days ×
2.0 - 35.0mm Optic Dia., Three-Screw Adjustable Ring Mount	Fixed	#03-668	£45.10 Qty 10+ £40.02 Request Quote	In Stock ×
25.0/25.4mm Optic Dia., L-Slot Direct Mount	Fixed	#36-410	£47.56 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., Side Flange Direct Mount	Fixed	#36-414	£47.56 Request Quote	3-4 days ×
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount	Fixed	#36-605	£56.17 Qty 10+ £49.61 Request Quote	In Stock ×
25/25.4mm Diameter, E-Series Kinematic Mount, Quick Start Optical Mounts	Adjustable - Tip-Tilt	#17-521 New ×	£58.60 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., Kinematic Mount, 2-Screws	Adjustable - Tip-Tilt	#58-851	£67.24 Qty 5+ £60.52 Request Quote	In Stock ×
25.0/25.4mm Optic Dia., L-Slot and Rotation Direct Mount	Adjustable - Rotary	#36-411	£69.29 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., Optical Cell Assembly	Fixed	#36-461	£69.29 Qty 10+ £61.42 Request Quote	3-4 days ×
25.4mm Optic Dia., Fixed Optic Mount, Quick Start Optical Mounts	Fixed	#17-515	£69.62 Request Quote	Contact Us ×
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-676	£72.98 Qty 10+ £65.68 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., Kinematic Mount, 3-Screws	Adjustable - Tip-Tilt	#58-854	£73.80 Qty 5+ £66.42 Request Quote	In Stock ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount	Fixed	#03-670	£77.08 Qty 10+ £68.06 Request Quote	3-4 days ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-669	£78.72 Qty 10+ £70.85 Request Quote	3-4 days ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder	Fixed	#55-530	£78.72 Qty 10+ £70.85 Request Quote	In Stock ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-666	£81.18 Qty 10+ £73.06 Request Quote	In Stock ×
25/25.4mm Dia., Kinematic Mount, 3-Screws, Quick Start Optical Mounts	Adjustable - Tip-Tilt	#17-523	£102.50 Request Quote	3-4 days ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts	Fixed	#17-530	£109.06 Request Quote	3-4 days ×
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-077	£109.06 Qty 5+ £95.94 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., X-Y Translating Optic Mount	Adjustable - Linear (XY)	#62-956	£194.34 Qty 5+ £184.62 Request Quote	In Stock ×
25.0/25.4mm Optic Diameter, X-Y Translating Quick Start Optical Mounts	Adjustable - Linear (XY)	#17-513	£225.34 Request Quote	3-4 days ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-078	£284.54 Qty 5+ £250.92 Request Quote	3-4 days ×
25.0/25.4mm Optic Dia., Precision Gimbal Mount	Adjustable - Gimbal	#54-999	£327.18 Qty 5+ £291.18 Request Quote	3-4 days ×
25/25.4mm ID, Precision Gimbal Mount, Quick Start Optical Mounts	Adjustable - Gimbal	#17-517	£365.23 Request Quote	Contact Us ×
25.0/25.4mm Optic Dia., X-Y-Z Translating Optic Mount	Adjustable - Linear (XYZ)	#62-959	£381.30 Qty 5+ £343.17 Request Quote	In Stock ×
25.0/25.4mm Optic Dia., 5 Axes Optical Mount	Adjustable - Linear (XYZ) & Tip-Tilt	#13-776	£530.54 Qty 5+ £504.05 Request Quote	3-4 days ×

25.4mm Dia., 3.18mm Thick, BBAR (1000-1100nm), Laser Grade C-Axis Sapphire Window

Regulatory Compliance

Product Family Description