Wavelength Separators

Dichroic Mirrors

Dichroic Mirrors | PP-UVFS-25.4-6.35-DM388-AR752

$217.73

Qty 5+ > $206.85/piece
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Only 8 pieces in stock!

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% @ 355 nm + HTp>98% @ 532 nm + HTs>98% @ 1064 nm, AOI=45°
S2: ARp<0.5% @ 532 nm + ARs<0.5% @ 1064 nm, AOI=45°
LIDT: Lifetime optimized design

Inspection Report

Raw Spectral Data

HRs>99.5% @ 355 nm + HTp>98% @ 532 nm + HTs>98% @ 1064 nm, AOI=45° (DM388-AR752)

Calculated reflectance values at 45° angle of incidence

Calculated reflectance values at 45° angle of incidence
Calculated reflectance values at 45° angle of incidence

In-stock items ship the next business day via DHL. Estimated delivery time: 1–2 business days (EU), 3–5 business days (Rest of World). View full shipping policy.

These ultrafast IBS-coated dichroic mirrors are wavelength-separation optics for Nd:YAG-based laser systems, enabling clean harmonic routing while preserving beam quality in multi-wavelength laser paths. They are widely used as harmonic separators in frequency-conversion layouts to reflect the 355 nm third harmonic at a 45° AOI while transmitting the 532 nm second harmonic and 1064 nm fundamental, allowing independent beam delivery, attenuation, and diagnostics for each wavelength. Their high LIDT, low absorption, and stable spectral performance support reliable long-term operation in high-power laser systems where precise wavelength splitting is critical.

Mirror can be used in Nd:YAG laser systems such as:

  • “HyperRapid NXT” series by Coherent
  • “PicoBlade®” series by Lumentum
  • “FemtoFiber” series by TOPTICA
  • “Atlantic” series by EKSPLA
  • “IceFyre®” series by Spectra-Physics
  • “Aero” series by Bright Solutions
  • “neoMOS” series by neoLASE
  • “Cobolt Tor™” series by HÜBNER Photonics
  • “Centurion +” by Lumibird

OPTOMAN’s Standard IBS-coated Dichroic Mirrors are engineered to provide precise wavelength separation by reflecting one wavelength while transmitting another, with minimal absorption and excellent laser induced damage resistance. Coated using IBS technology, these mirrors deliver long-term spectral stability, sharp edge transitions, and high extinction ratios between transmitted and reflected beams.

These mirrors are optimized for reflecting 355 nm at a 45° angle of incidence, while transmitting 532 nm and 1064 nm, providing precise wavelength separation for laser pulses. With reflectance for III harmonic and transmittance for I and II harmonics, this filter is optimized for Nd:YAG based laser systems.

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