Photonics4Future Webinar I “Aircraft-to-ground entanglement-based quantum key distribution”

March 13, 2025 | 2:00 - 2:45 pm | online

Abstract:

"Quantum key distribution (QKD) offers secure sharing of secret keys backed by the laws of physics, particularly utilizing single photons. This presentation explores aircraft-to-ground entanglement-based QKD. It addresses the challenges typically faced in multi-platform QKD, such as channel loss, polarization alignment, synchronization issues and large background noise, while proposing innovative solutions. The seminar will also showcase the flight scenario in the QuNet-SE3 demonstration and its latest advancements in technology."

Presented by:

Christopher Spiess, Team lead "Quantum Crypto Systems" at Fraunhofer IOF

Photonics4Future Webinar | “Multicore Fibers: From Manufacturing Challenges to Cutting-Edge Applications”

April 10, 2025 | 2:00 - 2:45 pm | online

Abstract:

"Multicore fibers offer a groundbreaking solution in areas such as telecommunications, sensing, and laser development. They enable powerful, compact laser systems through parallel signal amplification and coherent beam combination. This talk will address manufacturing challenges, from preform development using the techniques of stacking and drilling to final fiber development. This technology paves the way for enhanced performance in various applications and is set to shape the future of the industry."

Presented by:

Dr. Nicoletta Haarlammert, Team lead "Fibertechnology" at Fraunhofer IOF

Photonics4Future Webinar | “Design and manufacturing of deformable mirrors”

May 8, 2025 | 2:00 - 2:45 pm | online

Abstract:

"Deformable mirrors are a core component in active and adaptive optics (AO). They can be used to change the phase and amplitude of light, so that aberrations caused by the turbulent atmosphere or thermal effects in optical instruments can be compensated or the focus in high-energy lasers can be manipulated. The lecture includes an introduction to the world of AO and in particular shows different technologies for the design and fabrication of deformable mirrors for various applications in academia and industry."

Presented by:

Dr. Matthias Goy, Team lead "Active and adaptive optics" at Fraunhofer IOF

Photonics4Future Webinar I “Power scaling and Beam Combining of Fiber Laser Systems”

Juni 12, 2025 | 2:00 - 2:45 pm | online

Abstract:

"High power lasers play a growing role in material processing, medical applications or long-range communication. Whenever long ranges are addressed or excellent beam quality is required, fiber lasers are a preferred tool because of their inherent mechanical stability and diffraction limited beam profile. The webinar will give an overview of power limitations in fiber systems and ways to overcome them, addressing fiber lasers in the 1µm and the (eyesafe) 2µm spectral region. Beyond the power level of single laser systems, or whenever multiple wavelengths are required, e.g. in communications, we will show methods to combine multiple lasers into one beam while preserving beam quality."

Präsentiert von:

Dr. Till Walbaum, Team lead "Lasertechnology" at Fraunhofer IOF

Photonics4Future Webinar | "Additive manufacturing for metal optical components"

July 10, 2025 | 2:00 - 2:45 pm | online

Abstract:

"The additive manufacturing of mirror base bodies and optical housings offers high potentials for metal optical systems. New functionalities can be integrated, mass can be reduced and the stability optimized. Within this webinar, the application of laser powder-bed fusion of metallic materials for optical applications is explained. Examples of light-weighted mirrors and housings for space applications, topology optimized scanning mirrors for laser material processing or mirrors with internal cooling channels for lithographic tools will be presented."

Presented by:

Dr. Nils Heidler, Team lead "Metal Optics" at Fraunhofer IOF

Photonics4Future Webinar IV | “Multimodal 3D Measurement: Imaging Beyond Three Dimensions”

December 12, 2024 | 2 - 2:45 pm | online

Abstract:

"At the Fraunhofer IOF’s Imaging and Sensing department, we develop customized systems and methods for optical imaging, sensing, image processing, and data handling. In our webinar, we will present some of our latest developments and highlight specific application examples. If you are looking for photonic solutions for documenting measurement objects, creating digital twins, obtaining input data for augmented reality applications, and numerous other use cases, you can look forward to gaining insights into our work and getting in touch with us."

Your host:

Dr. Peter Kühmstedt, Head of Department "Imaging and Sensing" at Fraunhofer IOF

Photonics4Future Webinar III | “Characterization of Optical Surfaces and Coatings”

November 14, 2024 | 2 - 2:45 pm | online

Abstract:

"Comprehensive characterization throughout the photonic process chain is essential for high-performance optics. The webinar provides an overview of surface and coating characterization with a particular focus on roughness analysis using the PSD function and its connection to scattered light. Additionally, it addresses light scattering-based particle and defect detection as well as links to stray light analysis. These topics are highly relevant for aerospace, lithography, and optical metrology."

Your host:

Dr. Anne-Sophie Munser, Head of Group "Surface and Coating Characterization" at Fraunhofer IOF

Photonics4Future Webinar II | "Compact & Efficient: Micro-optics transforming automotive lighting"

October 10, 2024 | 2 - 2:45 pm | online

Abstract:

"Our goal is to use advanced micro-optics to tackle challenges in automotive lighting, focusing on creating sleek, compact designs, reducing costs, and improving efficiency.

In this webinar we will explore options, use cases, and a look into the future in the automotive industry, including lighting companies as well as suppliers and car manufacturers."

Your host:

Dmitrii Stefanidi, scientific researcher "Optical and Mechanical System Design" at Fraunhofer IOF

Photonics4Future Webinar I | “Scaling Micro- and Nanophotonics: Wafer-Level Metasurfaces and Beyond”

September 12, 2024 | 2 - 2:45 pm | online

Abstract:

"Lithographic nanostructuring is essential for fabricating modern photonic known as "metasurfaces" in micro- and nanooptical systems. These structures offer advanced features beyond classical optics, from multi-aperture systems to resonant nanostructures that precisely tailor optical responses. Enabled by advancements in lithography, they face challenges in scaling, shape control, and positioning accuracy across large areas and diverse materials. Additionally, cost-effective and timely fabrication is crucial. This webinar will address these challenges and explore future applications and functionalities with you."

Your host:

Dr. Falk Eilenberger, Head of Department "Micro- and Nanooptics" at Fraunhofer IOF