A new turnkey diode laser system from Coherent (Santa Clara, CA) (Nasdaq: COHR) offers modular flexibility and output power of up to 400W at 976 nm. Specifically, the HB-Diode laser system can be configured with from one to four 100W 200 µm diode modules, and the output from each diode module can then be fiber-delivered individually, or combined into a single, 0.22 NA delivery fiber in order to optimally match the needs of the application. The resulting output is either 100W, 200W, 300W or 400W of power, at fiber diameters of 200 µm, 400 µm, 600 µm or 800 µm respectively. Integration into industrial applications is further enhanced by the laser’s 19" rack mount form factor, armored fiber, air-cooling, aiming beam and a comprehensive selection of fiber imaging optics. This new system also achieves industry leading MTTF (mean time to failure) and operating lifetime characteristics through the use of Coherent’s proprietary in-house epitaxy and packaging technology.
With its easily customized output, the HB-Diode system can service a variety of industrial processing needs, such as plastics welding for microelectronics, medical and automotive applications, and soldering electronics and solar cell panels. For solar cell assembly, it offers substantial advantages over traditional soldering technologies, such as induction heating. In particular, laser processing improves yields by enabling better control of the heat delivered into the part, thus resulting in lower thermal gradients, less residual stress, and overall reduced breakage. For plastics welding applications, the high power output of the HB-Diode system provides increased throughput over lower power lasers. This can be achieved by using a single beam at a high feed rate, or by using multiple, lower power output beams for parallel processing.