Ultrasteep Long Pass Filter

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Home  Products 

Longpass Filter

 Ultrasteep Long Pass Filter

Ultrasteep Long Pass Filter

Grand Unified Optics provides standard products of ultra-steep long-pass filter with a diameter of 12.5mm and 25mm in packaged and unpackaged versions and a wavelength of 488nm-1064nm laser wavelength. The filter has a high laser damage threshold. The characteristics of deep cut-off depth and ultra-steep transition from reflection to transmission are widely used in microscopic imaging, Raman spectroscopy, biochemical analysis instruments, life sciences, education and scientific research and other related fields. We can also offer custom coatings according to your requirements.

Material Fused Silica

Diameter Tolerance ＋0.0/-0.1mm

Mount Tolerance 3.5mm

Substrate Thickness 2.0mm

Thickness Tolerance ±0.1mm

Surface Quality 60-40

AOI 0±2°

Clear Aperture ≥10mm（Φ12.5mm）≥22mm（Φ25mm)

Laser Damage Threshold 0.5J/cm2@266nm (10ns pulse width)

Note Arrow on ring indicates preferred direction of propagation of light.

Laser Damage Threshold 1J/cm2@532nm (10ns pulse width)

Products Spectral curve Related Download

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Parameter

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Laser Wavelength

Transmission Band

Transition Width

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208680

Parameter list

Φ12.5mm(Mounted)

488nm

Tavg＞93%@491.2-1100.8nm

2.4nm

102cm^-1

Consult



$445.83



208681

Parameter list

Φ12.5mm(Mounted)

532nm

Tavg＞93%@535.4-1200nm

2.7nm

90cm^-1

Consult



$445.83



208682

Parameter list

Φ12.5mm(Mounted)

632.8nm

Tavg＞93%@636.9-1427.4nm

3.2nm

79cm^-1

Consult



$445.83



208683

Parameter list

Φ12.5mm(Mounted)

785nm

Tavg＞93%@790.1-1770.7nm

3.9nm

63cm^-1

Consult



$445.83



208684

Parameter list

Φ12.5mm(Mounted)

830nm

Tavg＞93%@835.4-1872.2nm

4.2nm

60cm^-1

Consult



$445.83



208685

Parameter list

Φ12.5mm(Mounted)

1064nm

Tavg＞93%@1070.9-2000nm

5.3nm

47cm^-1

Consult



$445.83



208686

Parameter list

Φ12.5mm

488nm

Tavg＞93%@491.2-1100.8nm

2.4nm

102cm^-1

Consult



$445.83



208687

Parameter list

Φ12.5mm

532nm

Tavg＞93%@535.4-1200nm

2.7nm

90cm^-1

Consult



$445.83



208688

Parameter list

Φ12.5mm

632.8nm

Tavg＞93%@636.9-1427.4nm

3.2nm

79cm^-1

Consult



$445.83



208689

Parameter list

Φ12.5mm

785nm

Tavg＞93%@790.1-1770.7nm

3.9nm

63cm^-1

Consult



$445.83



208690

Parameter list

Φ12.5mm

830nm

Tavg＞93%@835.4-1872.2nm

4.2nm

60cm^-1

Consult



$445.83



208691

Parameter list

Φ12.5mm

1064nm

Tavg＞93%@1070.9-2000nm

5.3nm

47cm^-1

Consult



$445.83



208692

Parameter list

Φ25mm(Mounted)

488nm

Tavg＞93%@491.2-1100.8nm

2.4nm

102cm^-1

Consult



$804.17



208693

Parameter list

Φ25mm(Mounted)

532nm

Tavg＞93%@535.4-1200nm

2.7nm

90cm^-1

Consult



$804.17



208694

Parameter list

Φ25mm(Mounted)

632.8nm

Tavg＞93%@636.9-1427.4nm

3.2nm

79cm^-1

Consult



$804.17



208695

Parameter list

Φ25mm(Mounted)

785nm

Tavg＞93%@790.1-1770.7nm

3.9nm

63cm^-1

Consult



$804.17



208696

Parameter list

Φ25mm(Mounted)

830nm

Tavg＞93%@835.4-1872.2nm

4.2nm

60cm^-1

Consult



$804.17



208697

Parameter list

Φ25mm(Mounted)

1064nm

Tavg＞93%@1070.9-2000nm

5.3nm

47cm^-1

Consult



$804.17



208698

Parameter list

Φ25mm

488nm

Tavg＞93%@491.2-1100.8nm

2.4nm

102cm^-1

Consult



$804.17



208699

Parameter list

Φ25mm

532nm

Tavg＞93%@535.4-1200nm

2.7nm

90cm^-1

Consult



$804.17



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We offer two catalogs to you: product catalog and Imaging optics catalog.

Product catalog:
This catalog include optical components, laser components, opto-mechanics, lenses and light sources, measuring instruments, and optical materials. In additional, we also provide large-size ultra-precision planar optical, spherical optical, aspheric optical, imaging lens, and precision angle component customized design and processing.

Imaging optics catalog:
This catalog include fixed focal lens, telecentric lens, zoom lens, line scan lens, short wave near infrared lens (SWIR), 360°outer surround view lens, VIS-NIR lens, relay lens , teleconverter, etc. In additional, we also provide lens design and development service.

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