Wavelength Separators

Dichroic Mirrors

Dichroic Mirrors | PP-UVFS-25.4-6.35-DM389-AR753

€110,00

Qty 5+ > €104,50/piece
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Substrate material: UVFS (Corning 7980 0F)
Diameter: 25.4 mm +0/-0.1 mm
Thickness: 6.35 mm +/-0.1 mm
Clear aperture: min 20 mm
Surface quality, S1/S2: 20-10 S-D MIL-PRF-13830B
Surface flatness, S1/S2: <λ/8 @633 nm over Dia15 mm
Parallelism: <10 arcsec
Protective chamfer: 0.2-0.4 mm x 45°
Chips: <0.2 mm stoned

Coatings (IBS):
S1 (arrow marks): HRs>99.5% @ 343 nm + HTp>98% @ 515 nm + HTs>98% @ 1030 nm, AOI=45 deg
S2: ARp<0.5% @ 515 nm + ARs<0.5% @ 1030 nm, AOI=45 deg

LIDT: Lifetime optimized design

Inspection Report

Raw Spectral Data

HRs>99.5% @ 343 nm + HTp>98% @ 515 nm + HTs>98% @ 1030 nm, AOI=45° (DM389-AR753)
Calculated reflectance values at 45° angle of incidence for s and p polarizations
Calculated 343 nm reflectance values at 45° angle of incidence for s and p polarizations
Calculated 515 nm reflectance values at 45° angle of incidence for s and p polarizations
Calculated 1030 nm reflectance values at 45° angle of incidence for s and p polarizations
Measured transmittance values at 45° angle of incidence

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These ultrafast IBS-coated dichroic mirrors are wavelength-separation optics for Yb-based femtosecond and picosecond laser systems, enabling clean harmonic routing while preserving beam quality and pulse duration. They are widely used as harmonic separators in frequency-conversion layouts to reflect the 515 nm second harmonic and transmit the 1030 nm fundamental, allowing independent beam delivery, attenuation, and diagnostics for each wavelength. Their high LIDT, low absorption, and minimal Group Delay Dispersion (GDD) support reliable long-term operation in high-peak-intensity ultrafast beam paths where precise spectral splitting is critical.

Mirror can be used for Yb:YAG based ultrafast laser systems, such as:

  • “PHAROS” and “CARBIDE” by Light Conversion
  • “Monaco” series by Coherent
  • “FemtoBlade™” series by Lumentum
  • “TruMicro” series by TRUMPF
  • “IceFyre® FS” series by Spectra-Physics
  • “Satsuma” and “Tangor” series by Amplitude
  • “FemtoLux” series by EKSPLA
  • “FSL1030X2” by Thorlabs
  • “Jasper X1” by Fluence technology
  • “FS Series” by Photonics Industries

OPTOMAN’s Enhanced Lifetime IBS-coated Dichroic Mirrors are designed to deliver long-term optical performance, and higher LIDT in demanding laser applications. The Enhanced Lifetime technology directly translates into lower maintenance costs and reduced downtime.

This filter is optimized for reflecting 343 nm at a 45° angle of incidence and transmitting 515 nm and 1030 nm. With reflectance for III harmonic and transmittance for I and II harmonics, this filter is optimized for Yb:YAG based ultrafast laser systems.

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