A high power, single frequency, 1550 nm, semiconductor disk laser

Semiconductor disk lasers, or sometimes referred to as vertical external cavity surface emitting lasers, have over the last years proven capable of delivering multi-W emission in diffraction limited beams. This work shows how the use of a thin diamond as a heat spreader and an intra-cavity filter in a short cavity configuration offers a compact and stable platform for high power, single frequency devices. The optical properties of diamond also offer potential use of this technique with other semiconductor materials and emission wavelengths.