Nanosecond laser from Lumera

Thanks to patented SpotLock pumping technology, Blaze lasers from Lumera Laser (Kaiserslautern, Germany) have excellent beam characteristics even at high average power and repetition rates. SpotLock guarantees extremely high beam-pointing stability for precise machining of various materials. The technology minimizes thermal effects in the laser crystal, which usually negatively affects the laser performance and stability of high-power laser systems. SpotLock enables the spot size and the corresponding focal position to remain constant over the entire repetition range. When changing the process parameters no adjustments outside of the beam source needs to be made, thus avoiding costly set-up times.

With the Blaze LP-long pulse laser the comapny offers a high-power laser, which specifically meets the requirements of the solar industry. More specifically, in EWT (Emitter Wrap-Through) - solar cell technology, the contacts are moved to the back of the modules, such that the contacts do not shade the solar cell which increases the efficiency by one-third. For this application conventional laser systems produce only from 3000 to 5000 holes per second. Due to the longer pulses the Blaze LP drills more than >10,000 holes per second with maximum precision at a wafer thickness of 120 microns. This allows the required high throughput at a consistently excellent quality, resulting in a significant cost advantage in this application field.

The Blaze is offered at 80W in the IR and 50W in the green. The short pulsed version is specified at <60ns, and the long pulse version is <700ns.

Blaze can make 10,000 holes per second