Chirped Chirped Mirror WQ-CM-1030-100

Overview

The WaveQuanta Chirped Mirror 1030nm (-100 fs² per bounce) delivers moderate negative GDD compensation optimized for ultrafast Yb-doped laser systems operating near 1030 nm. With -100 fs² per bounce, this chirped mirror provides fine-grain dispersion control ideal for intracavity compensation in sub-100 fs oscillators and amplifier stretcher/compressor assemblies where cumulative GDD tuning is required.

The -100 fs² GDD value strikes a balance between compact optical layouts and precise dispersion management. Unlike higher-magnitude chirped mirrors that require fewer bounces but reduce tuning flexibility, this moderate GDD specification allows designers to achieve exact compensation through incremental bounce counts—approximately 60 bounces compensate for 6000 fs² of positive dispersion from gain media, optical components, or propagation through air. This granularity is essential for optimizing pulse duration in regenerative amplifiers and CPA systems where over-compensation degrades temporal performance.

Applications

• Yb:KGW and Yb:YAG femtosecond oscillators: intracavity dispersion compensation for sub-100 fs pulse generation at 1030 nm
• CPA and OPCPA systems: fine-tuning residual dispersion in stretcher/compressor stages for temporal contrast optimization
• Industrial femtosecond lasers: GDD management in micromachining and precision ablation systems operating at 1030 nm
• Nonlinear frequency conversion setups: pre-compensation of GVD before high-intensity harmonic generation or parametric processes

Construction & Performance

Manufactured on UVFS substrates for low thermal lensing and high damage resistance, this P-polarized chirped mirror features ion beam sputtered (IBS) dielectric coatings engineered for -100 fs² GDD at 1030 nm central wavelength. The multilayer stack maintains broadband reflectance exceeding 99.5% while delivering stable dispersion characteristics across the Yb-laser gain bandwidth. Designed for 0–6° angle of incidence (AOI) to minimize spatial chirp and wavefront distortion, the mirror supports LIDT of 0.2 J/cm² for femtosecond pulses, suitable for oscillator and moderate-energy amplifier 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.