光库科技：公司光纤激光器件产品包括隔离器、合束器、光纤光栅、激光输出头等，主要应用于光纤激光器等领域

Group 1 - The company, Guangku Technology, confirmed that its fiber laser products include isolators, combiners, fiber gratings, and laser output heads, primarily used in fiber laser applications [2] - An investor inquired about the potential application of the company's laser technology in photovoltaic and PCB circuit board sectors [2] Group 2 - The company operates in the fiber laser industry, which is experiencing growth due to increasing applications in various fields [2] - The interaction indicates investor interest in the diversification of laser applications beyond traditional uses [2]