TY - JOUR
AU - Turner, George W.
AB - Slab-coupled optical waveguide lasers (SCOWLs) and amplifiers (SCOWAs) are inherently low-confinement structures with large nearly-circular modes that are easily coupled to optical fibers or collimated for free-space applications. Recently SCOWL powers have increased to 3 W by increasing the cavity length to 1 cm and improving the heat removal. SCOWAs are coherently combined using active phase control to achieve a very high-brightness source. Our coherent beam combining system consists of single-pass amplifiers with angled-facet SCOWAs that suppress feedback. Single-pass, 5-mm long, SCOWAs have now been demonstrated with 1.5 W CW output with only 50 mW seed power. Arrays of 47 SCOWAs have demonstrated a raw power of 57 W with 50 mW of seed power per element. A coherent beam combining demonstration is currently being assembled.
TI - Slab-coupled optical waveguide lasers and amplifiers
JF - Proceedings of SPIE
DO - 10.1117/12.905028
DA - 2012-01-22
UR - https://www.deepdyve.com/lp/spie/slab-coupled-optical-waveguide-lasers-and-amplifiers-MXWikzAPQM
SP - 82410S
EP - 82410S-7
VL - 8241
IS - 1
DP - DeepDyve
ER -