Abstract

The smile of a laser diode bar has a dramatic impact on the beam quality in the fast axis and significantly degrades the beam parameter product. We present an optical design that allows for a compensation of the laser diode smile by the use of micro-optics. The possibility to compensate the smile of an arbitrary laser diode bar by using a given set of optical modules is evaluated. This technique potentially increases the yield of suitable diode bars in the production process and the efficiency for fiber coupling applications.

© 2018 Optical Society of America

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