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All Products / Optics / Optical Filters / Shortpass Filters / Low GDD Dichroic Shortpass Ultrafast Filters
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

450nm, 25.2 x 35.6mm, Low GDD Dichroic Shortpass Ultrafast Filter

TECHSPEC® Low GDD Dichroic Shortpass Ultrafast Filters

TECHSPEC® Low GDD Dichroic Shortpass Ultrafast Filters

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S$295.80
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S$295.80
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S$236.35
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Dimensions (mm):
25.2 x 35.6
Angle of Incidence (°):
45
Cut-Off Wavelength (nm):
450.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Length (mm):
35.60
Coating:
Hard Coated
P-Polarization Transmission (%):
>80
Reflection (%):
>97 Average Polarization
Reflection Wavelength (nm):
470 - 545
S-Polarization Transmission (%):
>80
Surface Quality:
60-40
Thickness (mm):
1.05 ±0.1
Transmission (%):
>85 Average Polarization
Transmission Wavelength (nm):
325 - 430
Type:
Dichroic Filter
Width (mm):
25.20
Dimensional Tolerance (mm):
+0.0/-0.2
Transmitted Wavefront, RMS:
λ/4
Slope Factor (%):
3.00
Cut-Off Tolerance (%):
±2
S-Polarization Reflection (%):
>95
P-Polarization Reflection (%):
>95
Coating Specification:
Surface 1: Hard Dielectric Sputtered Surface 2: AR Coated
Wavelength Range (nm):
325 - 545
GDD Specification (Transmission):
80 ±30fs2 @ 360 - 425nm
120 ±80fs2 @ 325 - 430nm

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
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Reach 235:
Compliant
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Product Family Description

  • Reduced Thickness for Limited GDD
  • Broad Transmission and Reflection Ranges 
  • Ideal for Ultrafast Laser Applications
  • Controlled GDD Specification Using In-House Metrology

TECHSPEC® Low GDD Dichroic Shortpass Ultrafast Filters feature thin substrates and a low group delay dispersion (GDD) coating, making them ideal for use with ultrafast laser sources. Designed for a 45° angle of incidence and covering a range of wavelengths, these spectral filters can be used with Ti:sapphire, Nd:doped, and Yb:doped fiber or glass lasers, as well as with optical parametric oscillators and amplifiers. TECHSPEC Low GDD Dichroic Shortpass Ultrafast Filters are ideal for ultrafast laser applications including multi-photon microscopy, nonlinear fluorescence, and femtosecond stimulated Raman spectroscopy. Please contact us if your application requires an ultrafast optical filter with a custom size or wavelength range.

Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.