Description

BBO Non-Linear Crystal is a non-linear crystal for frequency doubling (SHG) of visible and near-IR laser light. It also serves OPO, OPG, and OPA. These run on ultrafast pulses from the near IR to the UV. Sum-frequency mixing reaches the visible and deep UV. The material is beta-barium borate.

BBO Non-Linear Crystal advantages

High laser damage threshold. Broad phase-matchable range from 409.6 nm to 3500 nm. Wide transmission region from 190 nm to 3500 nm. High optical homogeneity (Δn ~10⁻⁶/cm). Wide temperature bandwidth of about 55°C. Large effective SHG coefficient, about six times greater than KDP. 1064 nm converts to 532 nm in a single pass. The 55°C bandwidth relaxes temperature control. Homogeneity at 10⁻⁶/cm keeps large beams clean across the aperture.

BBO Non-Linear Crystal applications

Second, third, fourth, and fifth harmonics of YAG(Nd). Frequency doubling, tripling, and mixing of dye lasers. Optical parametric amplifiers and oscillators. Harmonics of Ti:sapphire and alexandrite lasers. Frequency doubling of argon-ion, copper-vapor, and ruby lasers. External and intra-cavity SHG. Ultrafast labs pump OPAs with it. Dye-laser users value the broad phase-matchable range. For BBO-based Pockels cells, see our BBO Pockels Cell.

Deep-UV and medical use

BBO is one of the few practical crystals for SHG and SFM below 500 nm. It appears in medical and meteorology systems.

Request a quote for BBO Non-Linear Crystal with your phase-matching type and dimensions. Specify the target wavelengths for cut and coating. Tell us the input polarization for the right cut. Specify housing or bare crystal for system integration.