Related Experiment Video
Updated: Jun 22, 2026
10:28
Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
Published on: July 5, 2016
Beam homogenizers based on chirped microlens arrays
Frank Wippermann1, Uwe-D Zeitner, Peter Dannberg
1Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany. frank.wippermann@iof.fraunhofer.de
Optics Express
|June 24, 2009
Summary
Chirped microlens arrays offer a novel solution for laser beam homogenization, overcoming the limitations of traditional fly
Area of Science:
- Optics and Photonics
- Laser Technology
Background:
- Lens arrays, particularly fly's eye condensers, are standard for homogenizing coherent laser beams.
- Regular arrays create periodic intensity peaks, compromising beam homogeneity.
Purpose of the Study:
- To introduce chirped microlens arrays as an advanced beam shaping technique.
- To present the design principles and advantages of this new approach.
Main Methods:
- Application of non-regular, chirped microlens arrays in laser beam shaping systems.
- Utilizing individually shaped lenses defined by parametric descriptions derived from analytical functions.
Main Results:
- Demonstration of a novel beam shaping concept using chirped microlens arrays.
- Presentation of design rules for achieving improved beam homogeneity.
Conclusions:
- Chirped microlens arrays provide a superior alternative to regular arrays for laser beam homogenization.
- This method effectively mitigates intensity modulations, enhancing beam quality.
