Description

Cr4+ YAG Q-Switch Crystal is an excellent choice for passively Q-switching YAG(Nd), YAG(Yb), and YVO4(Nd) lasers across 0.8 to 1.2 um. X-Z LAB supplies this chromium-doped YAG for builders who want high-power pulses without electro-optic hardware. The 0.8-1.2 um coverage spans the most popular Nd and Yb laser lines.

Why the Cr4+ YAG Q-Switch Crystal wins

The crystal is chemically stable: it resists UV and handles heat well thanks to good thermal conductivity. These traits let it replace traditional materials such as LiF, organic dyes, and color centers.

Saturable absorption does the work. The Cr4+ ions absorb at low intensity and bleach at high intensity, which releases the stored energy as a giant pulse. No high-voltage driver and no Pockels cell electronics — just the crystal in the cavity.

Cr4+ YAG Q-Switch Crystal as a tunable laser medium

The same crystal also works as an active medium. It supports CW, pulsed, and self mode-locked tunable NIR solid-state lasers from 1340 to 1580 nm. One material covers both Q-switching and tunable operation.

Advantages at a glance

First, the damage threshold is high, so it survives high-power pulses. Second, the cost is lower than electro-optic alternatives.

Typical applications

Diode-pumped and lamp-pumped solid-state lasers use it as a passive Q-switch material. It also suits scientific systems that need clean single pulses on demand. For longer-wavelength eye-safe systems, see also our Co2+ MgAlO4 Q-Switch Crystal.

Request a quote for Cr4+ YAG Q-Switch Crystal with your wavelength and pump requirements.