UV/Visible Chirped Mirror -25fs²

Overview

The UV/Visible Chirped Mirror -25fs² (Optoman PCV) is a low-GDD dispersive mirror engineered for ultrafast laser dispersion management, providing -25 fs² of group delay dispersion per bounce across the 980–1080 nm operating bandwidth.

With -25 fs²/bounce, this mirror provides fine-tuning negative group delay dispersion per reflection — supporting compressor designs that balance ripple control against bounce count and footprint. The single-angle BBDM design integrates cleanly into both intracavity and external compressor geometries.

Applications

• Yb:YAG and Yb:KGW oscillator dispersion management
• Yb:fiber CPA stretcher-compressor matching
• Yb-band amplifier post-compression at 1030 nm
• Industrial fs-laser dispersion control for materials processing

Construction & Performance

Manufactured on a 25.4 mm diameter × 6 mm thick UVFS substrate with ion beam sputtered (IBS) dielectric multilayer coating, S1:HRsp_abs>99.9%@980 nm - 1080 nm / S2:Uncoated. The mirror operates at 0–10° angle of incidence. The coating provides exceptional layer density, low absorption losses, and long-term spectral stability — characteristics required for dependable performance in fs-laser oscillator and amplifier chains.

The 0.2 J/cm² damage threshold (specified at 50 fs, S-on-1) supports typical ultrafast laser fluences. Compatible with research-grade and industrial fs-laser systems requiring controlled dispersion at this operating wavelength.

Storage & Handling

Operate at 25 °C, 40–60% RH. Clean only with >99% optical-grade ethanol and lint-free lens tissue using single-pass drag method. Avoid abrasive cloths and water.