Windows

Window figures
  • Substrate Material: UV fused silica, BK7
  • Clear Aperture: larger than central 85% of diameter
  • Surface Quality: 10-5 Scratch-Dig
  • Surface Flatness: λ/10 @633nm over clear aperture
  • Diameter tolerance: +0.000/-0.010" (+0.00/-0.25mm)
  • Thickness tolerance: ±0.010" (±0.25mm)
  • Bevel: <0.5mm @45° typical
  • Wedge: ≤5 arc min, ≤10 arc sec, 30±5 arc min
  Spectral Optics provides high precision laser-quality regular plane (≤5 arc min), extremely parallel plane (≤10 arc sec), and wedged (30±5 arc min) windows fabricated from UV fused silica or BK7.  These windows are polished on both sides with high flatness and high surface quality to handle high power laser applications as well as various industrial applications.

  They can be used as laser windows with a proper anti-reflection coating and can become various coated products, such as, plate beam splitters, dichroic filters, and partial reflectors.

Transmittance (%) data of BK7 & UVFS

Product Lists

Windows Price (USD)
Diameter (D) Thickness (T) Material Wedge (θ) Part Number
0.5" (12.7mm) 1/4" (6.35mm) Fused silica ≤5 arc min PW1-0525-FS $70
≤10 arc sec PW2-0525-FS $85
30±5 arc min PW3-0525-FS
BK7 ≤5 arc min PW1-0525-BK $60
≤10 arc sec PW2-0525-BK $75
30±5 arc min PW3-0525-BK
1.0" (25.4mm) 1/4" (6.35mm)
or 3/8" (9.53mm)
Fused silica ≤5 arc min PW1-1025-FS
PW1-1037-FS
$80
≤10 arc sec PW2-1025-FS
PW2-1037-FS
$105
30±5 arc min PW3-1025-FS
PW3-1037-FS
BK7 ≤5 arc min PW1-1025-BK
PW1-1037-BK
$65
≤10 arc sec PW2-1025-BK
PW2-1037-BK
$90
30±5 arc min PW3-1025-BK
PW3-1037-BK
1.5" (38.1mm) 1/4" (6.35mm)
or 3/8" (9.53mm)
Fused silica ≤5 arc min PW1-1525-FS
PW1-1537-FS
$110
≤10 arc sec PW2-1525-FS
PW2-1537-FS
$135
30±5 arc min PW3-1525-FS
PW3-1537-FS
BK7 ≤5 arc min PW1-1525-BK
PW1-1537-BK
$85
≤10 arc sec PW2-1525-BK
PW2-1537-BK
$115
30±5 arc min PW3-1525-BK
PW3-1537-BK
2.0" (50.8mm) 1/4" (6.35mm)
or 3/8" (9.53mm)
Fused silica ≤5 arc min PW1-2025-FS
PW1-2037-FS
$150
≤10 arc sec PW2-2025-FS
PW2-2037-FS
$190
30±5 arc min PW3-2025-FS
PW3-2037-FS
BK7 ≤5 arc min PW1-2025-BK
PW1-2037-BK
$110
≤10 arc sec PW2-2025-BK
PW2-2037-BK
$165
30±5 arc min PW3-2025-BK
PW3-2037-BK
3.0" (76.2mm) 1/2" (12.7mm) Fused silica ≤5 arc min PW1-3050-FS $420
≤10 arc sec PW2-3050-FS $450
30±5 arc min PW3-3050-FS
BK7 ≤5 arc min PW1-3050-BK $330
≤10 arc sec PW2-3050-BK $360
30±5 arc min PW3-3050-BK
4.0" (101.6mm) 1/2" (12.7) Fused silica ≤5 arc min PW1-4050-FS $550
≤10 arc sec PW2-4050-FS

$600

30±5 arc min PW3-4050-FS
BK7 ≤5 arc min PW1-4050-BK $450
≤10 arc sec PW2-4050-BK

$480

30±5 arc min PW3-4050-BK

5.0" (127.00mm)

1" (25.4mm) Fused silica ≤5 arc min PW1-050100-FS $1,650
≤10 arc sec PW2-050100-FS $1,700
30±5 arc min PW3-050100-FS
BK7 ≤5 arc min PW1-050100-BK $850
≤10 arc sec PW2-050100-BK $925
30±5 arc min PW3-050100-BK
6.0" (152.40mm) 1" (25.4mm) Fused silica ≤5 arc min PW1-060100-FS $2,025
≤10 arc sec PW2-060100-FS $2,200
30±5 arc min PW3-060100-FS
BK7 ≤5 arc min PW1-060100-BK $1,450
≤10 arc sec PW2-060100-BK $1,600
30±5 arc min PW3-060100-BK
8.0" (203.20mm) 1" (25.4mm) Fused silica ≤5 arc min PW1-080100-FS CALL
≤10 arc sec PW2-080100-FS CALL
30±5 arc min PW3-080100-FS
BK7 ≤5 arc min PW1-080100-BK $2,500
≤10 arc sec PW2-080100-BK $2,750
30±5 arc min PW3-080100-BK
NOTE:
  1. Usually 0.5-2.0" diameter substrates are in stock. Please check up the delivery for the larger substrates with us. It usually takes ~3-5 weeks if we don't have any in stock.
  2. Some other sizes and/or thicknesses may be available. Please contact us for other custom size windows.
  3. Spectral Optics provides anti-reflection coating services on these windows. Please refer to our coating services, V-coating and Broadband anti-reflection coating for the details. Please contact Spectral Optics for the price.
  4. A custom substrate will need the fixture machining charge (~$200-400). The coating lot charge (~$400-800 per each lot) will be applied for a special wavelength.
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