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System integration of micro-optical systems for beam steering and modulation applications

Using technologies such as replication or batch-fabrication, a number of micro-optical elements can be fabricated with low costs. However, as the realization of complex optical functions, for instance beam shaping and beam deflection, often requires several optical components, the mounting effort increases dramatically. It makes sense to emphasize the system aspects already in the design work. With the help of some examples for micro-optical fiber switches and modulators driven by piezoelectric actuators, we demonstrate that the combination of gradient-index optics with planar surfaces and replicated optical elements like micro-prisms, lens arrays on these surfaces can be an important step in the system integration.