1030nm Chirped Mirror HD73-25.4-6.35

Overview

The 1030nm Chirped Mirror -3000fs² (Ultrafast Innovations HD73) delivers high negative group delay dispersion of -3000 fs² per bounce, enabling ultrafast pulse compression with minimal optical path complexity. This high-GDD mirror is specifically engineered for 1030 nm Yb-based laser systems requiring efficient chirp compensation over the 1020–1040 nm spectral range.

With -3000 fs² per reflection, this 1030nm chirped mirror achieves GDD compensation in remarkably few bounces—compressing a 1.5 ps stretched pulse in just 4 reflections or managing typical CPA stretcher dispersion with 6–8 bounces. This compact dispersion management reduces cavity footprint and cumulative loss compared to conventional lower-GDD mirror designs, making it ideal for Yb:YAG, Yb:KGW, Yb:fiber, and Yb:CALGO oscillators demanding tight integration and high throughput.

Applications

• Chirped pulse amplification (CPA) compressors for Yb-doped laser systems requiring intracavity or post-amplifier dispersion compensation
• Ultrafast pulse compression in mode-locked Yb:fiber oscillators operating near 1030 nm with stretched pulse durations from 500 fs to 2 ps
• High-repetition-rate Yb:CALGO and Yb:KGW amplifier systems where minimal bounce count preserves beam quality and reduces thermal effects
• External compression stages for industrial fs laser systems requiring precise GDD tuning through variable bounce geometry

Construction & Performance

Manufactured on 25.4 mm diameter × 6.35 mm thick UVFS substrate with ion beam sputtered (IBS) dielectric coating, this P-polarized chirped mirror achieves >99.8% reflectance across the full 1020–1040 nm bandwidth at 3° angle of incidence. The multilayer coating architecture provides broadband phase control while maintaining flat reflectivity, ensuring predictable dispersion compensation without introducing spectral clipping in sub-100 fs pulse applications.

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.