High-Power GaSb-Based MIR Lasers

Coherent offers a complete mid-infrared laser product line in the entire spectral range from 1800 nm to 2300 nm, based on the unique know-how in mid-infrared chip technology. Applications are in the fields of medical, illumination, materials processing, direct infrared counter-measure (DIRCM) and pumping of mid-infrared solid-state and disc lasers. The broad-area, gain-guided lasers are based on the (AlGaIn)(AsSb) material system, epitaxially grown on GaSb substrates by multi-wafer MBE.

The single emitters are mounted onto C-Mounts and feature high output powers in combination with high wall-plug efficiencies as well as a fast-axis beam divergence as low as 44° FWHM due to an innovative waveguide design.