Product Code: ICA12_M1307

High Power 532nm Square Beam Delivery
Andrew A. Chesworth, Lee Laser, Inc.; Orlando FL USA
Presented at ICALEO 2012

In the last few years laser scribing has become an important process in the manufacture of solar cells. Selective ablation of surface layers requires good control of the laser and a beam having flat intensity. In this paper we describe a method for generating square profiles based on the availability of new novel fibers. In one such application, a 300x300m square beam having a flat intensity profile is generated using a high power 50W green laser. The paper describes the method for generating such a beam and the possibility for future requirements of even smaller profiles. Experimental results are presented.

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