Lens in zicht

This project focuses on developing an automated alignment method for optical lenses in photonic systems, aiming to improve precision, speed, and reliability in the assembly of broadband chip based light sources. 

Funded by: KIEM High Tech SIA

Duration: 1 year

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Aligning optical elements, such as high-quality lenses, is a complex task that is essential for the assembly of various photonic products. A circular lens needs to be positioned in five degrees of freedom, while asymmetric lenses require alignment in six degrees of freedom. Current techniques in both industry and research institutions focus on optimizing this process, for instance by using algorithms that can adjust multiple axes simultaneously rather than relying on sequential steps. 

SuperLight Photonics (SLP), a spin-off from the University of Twente, develops broadband supercontinuum lasers used in applications such as spectrometry and optical coherence tomography (OCT). One of their products is a broadband light source based on a photonic chip. To optimally utilize this light, it must be collimated with a lens, a task that is currently performed manually by analyzing the beam profile and parameters such as beam size and circularity. 

The alignment of the lens is critical to the performance of the system, especially because the complex interactions between multiple optical components can influence each other’s alignment. For this reason, SLP has approached Saxion’s Applied Nanotechnology research group (ANT) to develop an automated alignment algorithm capable of positioning the lens accurately and consistently according to specifications. ANT has extensive experience in photonic integration and precision assembly and collaborates with companies and research institutes such as the University of Twente. 

This project explores new methods to automate the alignment process, with a focus on speed, cost-efficiency, and a low error margin. Although bonding of the components falls outside the current scope, this aspect may be included in a follow-up project. The project aligns with national innovation themes and contributes to the further development of advanced manufacturing processes within the photonics industry. 

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Project Members ANT:

Project Partners:

Superlight Photonics