Vancouver-based nLIGHT enjoyed a successful stock offering and a strong performance in 2018, giving CEO Scott Keeney a lot to talk about Monday when he addressed investors at the 40th annual Raymond James conference in Orlando, Fla.“It was a real milestone year for nLIGHT,” he said. “Going public was a very positive experience for us.”The company’s revenue grew by 38 percent in 2018, Keeney said, and by 37 percent the year before. nLIGHT has shown consistent growth since its launch in 2000, he said, driven by the rise of the laser market, which has grown into a $2 billion industry.nLIGHT has become one of the leading producers in the field, an achievement which Keeney attributed to producing just two key products: semiconductor lasers and fiber lasers.“We’re a very focused company,” he said. “This is all we do.”The company’s own semiconductor lasers are used to manufacture fiber lasers, he said, and then both products are sold to an increasingly varied list of industrial sectors including aerospace defense, industrial fabrication and additive manufacturing.nLIGHT lasers are being used in the industrial fabrication sector to cut metals, Keeney said, often replacing older cutting technologies such as mechanical blades and carbon dioxide lasers. They’re also replacing arc welders for welding metal together.