
2000-5000nm Chirped Mirror 400fs²
HD2031-25.4-6.35Design Tools
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Overview
The 2000-5000nm Chirped Mirror 400fs² is a dielectric chirped mirror engineered for dispersion management in mid-infrared (MWIR) ultrafast laser systems. Reflectance band 2700–3700 nm centered near 3200 nm. Group delay dispersion of +400 fs² per bounce serves as a stretcher / pre-compensation element for Cr:ZnSe / Cr:ZnS, OPO / OPA, Tm:fiber / Ho:fiber, and Ho:YAG / Er:YAG architectures that demand sub-100 fs control at telecom-extended and mid-IR wavelengths.
Applications
- MWIR CPA stretcher (+400 fs²/bounce)
- Cr:ZnSe / Cr:ZnS fs amplifier dispersion engineering
- Mid-IR OPCPA dispersion pre-compensation
- Sub-100 fs 3.2 µm pulse engineering
Construction & Performance
- Substrate: UVFS, 25.4 mm × 6.35 mm
- Coating: Dielectric Coating, R>99.9%@2700-3700nm
- Angle of incidence: 5°
- Polarization: P,S
- Damage threshold: 0.2 J/cm² @ 800 nm reference (fs pulses)
Storage & Handling
Store in low-humidity dry cabinet with optical-grade lens tissue protection. Handle by the edges only — coating surface contact will degrade reflectance and damage threshold. Clean with high-purity acetone or methanol using the drop-and-drag technique; never wipe across the coated face. Avoid extreme temperature gradients that can cause stress birefringence in the substrate.
| Center Wavelength | 3200.0 nm |
| Wavelength Range | 2700.0 – 3700.0 nm |
| Polarization | P,S |
| Damage Threshold | 0.2 J/cm² (@800nm) |
| Diameter | 25.4 mm |
| Thickness | 6.35 mm |
| Substrate Material | UVFS |
| Coating Type | Dielectric Coating |
| Coating Wavelength | R>99.9%@2700-3700nm |
| Group Delay Dispersion | 400.0 fs² |
| Incidence Angle | 5.0° |
Product Family: 2000-5000nm Chirped Mirrors (9 variants)
| Product | SKU | Diameter | Wavelength Range | Group Delay Dispersion | |
|---|---|---|---|---|---|
| 2000-5000nm Chirped Mirror -250fs² |
PC1741-80x20-20
| 80.0 mm | 1700.0–2700.0 nm | -250.0 fs² | View |
| 2000-5000nm Chirped Mirror 300fs² |
IR1321-RC7-12.7-6.35
| 12.7 mm | 3750.0–4750.0 nm | 300.0 fs² | View |
| 2000-5000nm Chirped Mirror 100fs² |
HD1715-25.4-6.35
| 25.4 mm | 3200.0–4500.0 nm | 100.0 fs² | View |
| 2000-5000nm Chirped Mirror 500fs² |
HD346-50.8-12.7
| 50.8 mm | 2800.0–3600.0 nm | 500.0 fs² | View |
| 2000-5000nm Chirped Mirror 500fs² |
HD346-25.4-6.35
| 25.4 mm | 2800.0–3600.0 nm | 500.0 fs² | View |
| 2000-5000nm Chirped Mirror 500fs² |
IR26-25.4-6.35
| 25.4 mm | 2800.0–3400.0 nm | 500.0 fs² | View |
| 2000-5000nm Chirped Mirror 400fs² Current |
HD2031-25.4-6.35
| 25.4 mm | 2700.0–3700.0 nm | 400.0 fs² | |
| 2000-5000nm Chirped Mirror 1000fs² |
HD1501-25.4-6.35
| 25.4 mm | 2000.0–2200.0 nm | -1000.0 fs² | View |
| 2000-5000nm Chirped Mirror -250fs² |
PC1741-25.4-6.35
| 25.4 mm | 1700.0–2700.0 nm | -250.0 fs² | View |





