1030nm Chirped Mirror PP-UVFS-25.4-6.35-LLM214

Overview

The 1030nm Chirped Mirror -350fs² (Optoman PP-UVFS-25.4-6.35-LLM214) is a chirped mirror that delivers -350 fs² of negative group delay dispersion per bounce, a high-efficiency choice for external CPA compressor stages across the 980–1080 nm operating bandwidth.

At -350 fs²/bounce, this mirror reduces total bounce count for typical CPA stretcher dispersion (~3000–10000 fs²) by 3–5× compared with low-GDD designs, lowering scatter loss and beam-quality degradation. Multilayer dielectric coating designed for simultaneous high reflectance and controlled phase response.

Applications

• Yb:fiber CPA stretcher-compressor matching
• Yb:YAG regenerative amplifier post-compression
• ultrafast micromachining beam delivery
• harmonic generation feed optics (1030 → 515/343 nm)

Construction & Performance

Manufactured on a 25.4 mm diameter × 6.35 mm thick UV fused silica (UVFS) substrate with ion beam sputtered (IBS) dielectric multilayer coating, >99.9% reflectance specified as HR>99.9% @ 980 - 1080nm, AOI = 5°. The mirror operates at 5° angle of incidence with p-polarized light. Surface flatness <λ/10@633 nm over 10mm dia, surface quality 10-5 s-d. The IBS coating provides exceptional layer density, sub-ppm absorption losses, and long-term spectral stability — characteristics required for dependable performance in high-average-power amplifier chains.

1030 nm Yb-band IBS dielectric coating with optimized GDD flatness ensures consistent dispersion control under typical fs-laser operating conditions. Compatible laser systems include Yb:YAG thin-disk amplifiers, Yb:KGW oscillators (Light Conversion Pharos, Carbide), and Yb:fiber chirped pulse amplifiers.

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.