800nm Chirped Mirror PC1511-L-12.7-6.35

Overview

The 800nm Chirped Mirror -60fs² from Ultrafast Innovations PC1511 is a broadband dispersive mirror (BBDM) engineered for ultrafast laser dispersion management across the 600–1000 nm operating bandwidth.

With -60 fs²/bounce, this mirror compensates typical intracavity material dispersion (5–10 mm of fused silica) in a manageable bounce count, balancing ripple control with practical compressor footprint. A double-angle BBDM design suppresses the GDD oscillations characteristic of single-angle chirped mirrors, enabling deployment as a single optic where conventional designs require matched pairs.

Applications

• few-cycle pulse generation via hollow-core fiber post-compression
• external CPA-compressor stages for kHz amplifiers
• Ti:Sapphire intracavity dispersion compensation
• high-harmonic generation (HHG) feed optics

Construction & Performance

Manufactured on a 12.7 mm diameter × 6.35 mm thick UV fused silica (UVFS) substrate with ion beam sputtered (IBS) dielectric multilayer coating, >99.9% reflectance specified as R>99.9%@600-1000nm. The mirror operates at 5° angle of incidence with p-polarized light. 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.

Broadband 700–900 nm Ti:Sapphire-grade IBS dielectric coating ensures consistent dispersion control under typical fs-laser operating conditions. Compatible laser systems include Ti:Sapphire oscillators (Mira, Tsunami, Vitara, Octavius), Ti:Sapphire amplifiers (Coherent Legend, Spitfire, Astrella), and Cr:LiSAF lasers.

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.