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l/4 N-BK7 Laser Line Windows
• <0.25% Refl ection at Design Wavelength
• Coatings Available for HeNe, Diode, and
Nd:YAG Laser Sources
• Precision N-BK7 Substrate
TECHSPEC® l/4 N-BK7 Laser Line Windows are
ideally suited for industrial and low power laser applications.
The high tolerance design yields minimal
beam distortion and scatter. Anti-refl ection coatings
provide <0.25% refl ection at the coating’s design
wavelengths.
Substrate: N-BK7
Parallelism (arcmin): <1
Dimensional Tolerance (mm): +0.0/-0.25
Thickness Tolerance (mm): ±0.20
Surface Flatness: l/4
Surface Quality: 60-40
Coating: Rabs <0.25% @ DWL
TECHSPEC® Laser Line Windows
2
1.75
1.5
1.25
1
0.75
0.5
0.25
1064nm V-Coat
1550nm V-Coat
TECHSPEC® l/4 N-BK7 Laser Line Windows
Diameter
Thickness
(mm)
(mm)
405nm 532nm 632.8nm 785nm 980nm 1064nm 1550nm Price – Coated
Stock No. Stock No. Stock No. Stock No. Stock No. Stock No. Stock No. 1-5 6-25 26+
5.0 2.0 #64-035 #49-125 #49-135 #64-045 #83-515 #49-145 #83-525 £55.25 £49.73
Call For OEM Quantity Pricing
9.0 2.0 #64-036 #49-126 #49-136 #64-046 #83-516 #49-146 #83-526 £55.25 £49.73
10.0 2.0 #64-037 #49-127 #49-137 #64-047 #83-517 #49-147 #83-527 £55.25 £49.73
12.5 3.0 #64-038 #49-128 #49-138 #64-048 #83-518 #49-148 #83-528 £55.25 £49.73
15.0 3.0 #64-039 #49-129 #49-139 #64-049 #83-519 #49-149 #83-529 £55.25 £49.73
20.0 3.0 #64-040 #49-130 #49-140 #64-050 #83-520 #49-150 #83-530 £80.75 £72.67
25.0 4.0 #64-041 #49-131 #49-141 #64-051 #83-521 #49-151 #83-531 £80.75 £72.67
30.0 4.0 #64-042 #49-132 #49-142 #64-052 #83-522 #49-152 #83-532 £80.75 £72.67
40.0 4.0 #64-043 #49-133 #49-143 #64-053 #83-523 #49-153 #83-533 £80.75 £72.67
50.0 4.0 #64-044 #49-134 #49-144 #64-054 #83-524 #49-154 #83-534 £80.75 £72.67
Uncoated Laser Window Substrates
Shop www.edmundoptics.co.uk – latest pricing – availability – new products – over 34,000 items 119
0
300 400 500 600 700 800 900 1000 1100 1200
Wavelength (nm)
Reflectance (%)
405nm V-Coat
532nm V-Coat
633nm V-Coat
785nm V-Coat
980nm V-Coat
1300 1400 1500 1600 1700
• 10-5 Surface Quality and l/10 Surface Flatness
• Additional N-BK7 Substrate Options Available Online
• Standard Imperial Sizes for Drop-in Replacement Solutions
TECHSPEC® Uncoated Laser Window Substrates are laser quality window substrates designed to be used in
demanding laser applications. These laser window substrates are available, manufactured from fused silica for
high power laser applications that require excellent thermal stability. They feature precision grade l/10 surface
fl atness and 10-5 surface quality, ensuring minimal disturbance to transmitted beams. TECHSPEC® Uncoated
Laser Window Substrates are available in standard imperial sizes from 12.5 to 50.8mm in diameter for the
convenience of drop-in replacement into existing laser systems. Custom dimensional and coating options are
available, please contact us for custom inquiries.
Substrate: Fused Silica
Surface Quality: 10-5
Surface Flatness: l/10
Clear Aperture 90
Diameter Tolerance (mm): +0.0/-0.10
Thickness Tolerance (mm): ±0.20
Parallelism (arcmin): <3
7980 KrF (arcsec): <5
TECHSPEC® Uncoated Laser Window Substrates *Corning 7980 KrF Substrate
Diameter (mm) Thickness (mm) Stock No. Price
12.5 3.00 #48-022* £63.75
12.7 3.18 #37-693 £63.75
12.7 6.35 #37-688 £63.75
19.1 6.35 #38-911 £72.25
25.0 3.00 #48-023* £80.75
25.4 3.18 #37-694 £80.75
25.4 6.35 #37-689 £80.75
38.1 6.35 #38-912 £89.25
50.8 6.35 #37-690 £97.75
50.8 9.53 #38-060 £97.75
l/10 Laser Line Coated Windows
• 10-5 Surface Quality
• Guaranteed Damage Thresholds at Design Wavelengths
• Diameters from 12.5 to 50.8mm Available
TECHSPEC® l/10 Laser Line Coated Windows are designed for direct integration into laser applications. This
robust product family features common imperial sizes, and multiple thickness options. Anti-refl ection coatings
are available at common laser wavelengths, minimizing surface refl ection for optimal system transmission.
TECHSPEC® l/10 Laser Line Coated Windows provide laser grade specifi cations including l/10 surface fl atness
and 10-5 surface quality. These windows are ideal for industrial laser applications ranging from protective
coverings to separating various environments.
TECHSPEC® l/10 Laser Line Coated Windows *Corning 7980 KrF Substrate
Diameter
Thickness
266nm 343nm 355nm 515nm 532nm 980nm 1030nm 1064nm 1080nm
(mm)
(mm)
Price
Stock No. Stock No. Stock No. Stock No. Stock No. Stock No. Stock No. Stock No. Stock No.
12.5 3.00 #48-204* N/A #48-206* N/A #48-208* N/A N/A #48-210* N/A £72.25
12.7 6.35 #38-918 #39-668 #38-936 #39-681 #38-966 #39-702 #39-717 #38-982 #11-397 £97.75
19.1 6.35 #38-921 #39-670 #38-938 #39-683 #38-968 #39-704 #39-719 #38-984 #11-399 £97.75
25.0 3.00 #48-205* N/A #48-207* N/A #48-209* N/A N/A #48-211* N/A £106.25
25.4 6.35 #38-923 #39-671 #38-942 #39-684 #38-969 #39-705 #39-720 #38-985 #11-400 £148.75
38.1 6.35 #38-925 #39-673 #38-949 #39-688 #38-973 #39-707 #39-722 #38-988 #11-402 £157.25
50.8 9.53 #38-928 #39-675 #38-951 #39-690 #38-975 #39-710 #39-724 #38-990 #11-404 £165.75
Substrate: Fused Silica
Surface Quality: 10-5
Surface Flatness: l/10
Clear Aperture (%): 90
Coating Specifi cation: Rabs <0.25% @ DWL
Diameter Tolerance (mm): +0.0/-0.10
Thickness Tolerance (mm): ±0.20
Parallelism (arcsec): <3
7980 KrF (arcsec): <5
Damage Threshold, Certifi ed (J/cm²):
266nm: 3 @ 20ns, 20Hz
343nm & 355nm: 7.5 @ 20ns, 20Hz
515nm, 532nm & 980nm: 10 @ 20ns, 20Hz
1030nm, 1064nm & 1080nm: 15 @ 20ns, 20Hz
/www.edmundoptics.co.uk
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