Description

The PLW-DEG0.5-UVFS-12.7-5.0-GTI7-1 from OPTOMAN is a 1030 nm GTI dispersive mirror engineered for ultrafast Yb laser systems that require both high reflectivity and negative group delay dispersion (GDD) in a compact mirror format. Built on a 12.7 mm wedged UV fused silica substrate with 5.0 mm thickness, this optic is designed for operation at 0–10° angle of incidence and provides reflectivity above 99.8% from 1010 to 1050 nm for both s and p polarizations. Its coating design also delivers average GDD of -400 fs² ±100 fs² across 1025–1055 nm, making it well suited for pulse compression and intracavity dispersion management in femtosecond and picosecond laser platforms.

This optic is based on the Gires–Tournois interferometer (GTI) principle, where carefully engineered interference within the coating stack introduces controlled chromatic dispersion while maintaining very high reflectance. That makes it a strong candidate for laser architectures where passive dispersion compensation is needed without adding the alignment complexity of prism or grating compressors. The wedged geometry helps reduce unwanted parasitic reflections and etalon effects, while the IBS dielectric coating supports long-term spectral stability, low scatter, and high durability in demanding ultrafast beam paths.

With its combination of 1030 nm optimization, negative GDD, high-reflectivity IBS coating, and wedged UV fused silica construction, the PLW-DEG0.5-UVFS-12.7-5.0-GTI7-1 is well suited for OEM laser integration, laboratory pulse-management setups, and ultrafast laser systems that require reliable dispersion control around the Yb fundamental wavelength.

PLW-DEG0.5-UVFS-12.7-5.0-GTI7-1 1030 nm GTI Dispersive Mirror

Specifications

Substrate Material: UVFS
Diameter: 12.7 mm
Thickness: 5 mm
Clear Aperture (CA): 80 %
Surface Quality, S1 (scratch-dig): 10-5
Surface Quality, S2 (scratch-dig): Commercial Polish
Surface Flatness, S1 (@ 633nm Over CA Or Per Manufacturer): <= Lambda/8
Wedge, S1: 30 arcmin
Optimized AOI: 0 – 10 deg
Average Reflectance (@ Peak Wavelength Range, Optimized AOI): 99.8 %
Average GDD (@ Peak Wavelength Range, Optimized AOI): -400 fs^2
Wavelength Range: 1025 - 1055 nm
Manufacturer Part Number (MPN): PLW-DEG0.5-UVFS-12.7-5.0-GTI7+
FindLight SKU: FL-24428

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Features

  • Optimized for 1030 nm ultrafast laser systems
  • GTI dispersive mirror for negative group delay dispersion (GDD) management
  • Average GDD: -400 fs² ±100 fs² across 1025–1055 nm
  • Reflectivity >99.8% for s and p polarization over 1010–1050 nm
  • Designed for 0–10° angle of incidence operationWedged UV fused silica substrate to reduce back reflections and etalon effects
  • 12.7 mm diameter and 5.0 mm thickness for integration into compact optical assemblies
  • IBS coating technology for dense dielectric layers, low scatter, and long-term spectral stability
  • Suitable for femtosecond and picosecond Yb laser systems, oscillators, amplifiers, and pulse-conditioning stages

Applications

  • Dispersion compensation in 1030 nm femtosecond laser systems
  • Pulse compression and intracavity dispersion management in Yb oscillators and amplifiers
  • Ultrafast beam conditioning in picosecond and femtosecond laser platforms
  • Replacement of bulkier prism or grating-based dispersion compensation stages in compact systems
  • Integration into OEM ultrafast laser heads and optical modules
  • Research setups for pulse shaping, compression, and temporal optimization
  • High-stability beam paths requiring high reflectivity and controlled negative GDD

Export & Trade Information

ECCN: EAR99
HTS Code: 9001.90.6000
Estimated US Tariff: 10%

Importing, tariffs & codes (Quick Guide) →

Frequently Asked Questions

What is the PLW-DEG0.5-UVFS-12.7-5.0-GTI7-1 used for?
This optic is a GTI dispersive mirror designed to introduce negative group delay dispersion while maintaining high reflectivity around 1030 nm. It is commonly used in ultrafast laser systems to compensate dispersion from other optics and help preserve or compress short pulses.
What does GTI mean in a dispersive mirror?
GTI stands for Gires–Tournois interferometer. In this type of mirror, the multilayer coating structure is designed so that interference within the mirror produces a controlled amount of dispersion. This allows the mirror to act not only as a reflector but also as a compact pulse-management component in ultrafast laser systems.
Why is negative GDD important in femtosecond laser setups?
Short laser pulses broaden when they pass through dispersive materials such as crystals, windows, and other optical elements. A negative-GDD mirror helps counteract that broadening by introducing dispersion of the opposite sign, which can improve pulse compression and maintain shorter pulse duration at the target or inside the resonator.
Why does this mirror use a wedged substrate?
The wedged geometry helps suppress parasitic interference effects and reduces the risk of forming unwanted etalons in the beam path. This can be especially beneficial in ultrafast systems where even small back reflections or interference artifacts may affect pulse quality or stability.
What applications is this 1030 nm GTI mirror best suited for?
The PLW-DEG0.5-UVFS-12.7-5.0-GTI7-1 is best suited for Yb ultrafast oscillators, regenerative amplifiers, pulse compressors, and other femtosecond or picosecond laser systems operating near 1030 nm. It is particularly useful where high reflectivity, compact dispersion control, and stable IBS coating performance are required.

Got more questions? Use the inquiry form to ask the supplier directly.

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