Ultrafast Laser Mirrors

Dispersive Mirrors

Dispersive Mirrors | PP-UVFS-25.4-6.35-GTI7

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This is a Limited Supply product. Availability and order size affect lead time and price.

Substrate material: UVFS (Corning 7980 0F)
Diameter: 25.4 mm +0/-0.05 mm
Thickness: 6.35 mm +/-0.1 mm
Clear aperture: 20 mm
Surface quality, S1: 10-5 S-D per CA
Surface flatness, S1/S2: <λ/10@633 nm per 10 mm dia.
Parallelism: <5 arcmin
Chips: <0.1 mm (<0.05 mm best efforts)

Coatings (IBS):
S1 (arrow mark): Rp & Rs >99.8% @ 1010 - 1050 nm, AOI=0-10 deg

GDD_avg=-600 fs^2 +/-150 fs^2 @ 1025 - 1055 nm, AOI=0-10 deg
S2: Uncoated

Inspection Report

Rp & Rs >99.8% @ 1010 - 1050 nm, AOI=0-10° (GTI7)

Calculated reflectance graph for s and p polarization components at AOI 0 deg and 10 deg.

 

GDD_avg=-600 fs2 +/-150 fs2 @ 1025 - 1055 nm, AOI=0-10° (GTI7)

Calculated reflected GDD for s and p polarization components at AOI 0 deg and 10 deg.

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.

OPTOMAN’s IBS-coated GTI Mirrors are designed to introduce precise negative Group Delay Dispersion (GDD) through resonant interference, making them essential for dispersion control in ultrafast laser systems. Such mirrors operate on the Gires–Tournois interferometer principle, where dispersion is achieved by interference between a partial reflector and a highly reflective back layer within the mirror structure. This design enables strong, angle-dependent dispersion while maintaining high reflectivity.

These mirrors are optimized for Yb:YAG I harmonic operation at 1030 nm and a 0-10° angle of incidence, offering high reflectivity and consistent performance with GDD value at -600 fs^2.

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