IPG has expanded its quasi continuous wave (QCW) fiber laser series which includes models with average power up to 600 W and peak power up to 6 kW. The new modules are more powerful and feature compact size and lower price per Watt. Short modulation time and temporal pulse shaping enable improved control and quality in micromachining applications. The QCW fiber lasers are ideal for spot welding, drilling and cutting in the long pulse operation mode. These compact units are substantially more cost-effective than conventional YAG lasers due to >30% wall-plug efficiency and maintenance-free operation. The QCW fiber lasers are available for requalifying existing lamp-pumped processes. Retrofit services, including engineers familiar with system integration, are available to help customers replace older production lasers with energy-efficient fiber lasers from IPG.