OPSLOpen and Prepay Station List (railways)
OPSLOptically Pumped Semiconductor Laser (Coherent Inc.)
References in periodicals archive ?
1) Technical devices: laser system OPSL - 5Wat (2 pieces):
Coherent's Sapphire family of compact CW visible lasers includes the first 514-nm (green) offering based on proprietary OPSL technology.
OPSL technology results in 4x better electrical efficiency and lower heat dissipation than products based on legacy Nd:YAG technology.