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INTERNSHIP DETAILS

Internship on the subject of free-space laser communications

CompanyFraunhofer-Gesellschaft

LocationKarlsruhe

Work ModeOn Site

PostedDecember 19, 2025

Internship Information

Core Responsibilities

The intern will study wavefront sensing using angular selectivity properties of bandpass filters and perform measurements for characterization studies. They will also investigate alternative technologies that could benefit the angular-selective wavefront sensor.

Internship Type

full time

Company Size

279

Visa Sponsorship

Language

English

Working Hours

40 hours

Apply Now →

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the company's application page

About The Company

Fraunhofer IGD is the international leading institute for applied research in visual computing. Visual computing is image- and model-based information technology and includes computer graphics and computer vision, as well as virtual and augmented reality. In simple terms, the Fraunhofer researchers in Darmstadt, Rostock, and Kiel are turning information into images and extracting information from images. In cooperation with its partners, technical solutions and market-relevant products are created. Prototypes and integrated solutions are developed in accordance with customized requirements. In doing so, Fraunhofer IGD places users at the forefront, providing them with technical solutions to facilitate computer work and make it more efficient. Owing to its numerous innovations, Fraunhofer IGD raises man-machine interaction to a new level. Man is able to work in a more result-oriented and effective way by means of the computer and visual computing developments.

About the Role

At the Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB, we transform cutting-edge scientific findings into technical innovations – contributing to shaping the future.

Here’s how you’ll make a difference:

The Adaptive Optics Group, part of the Signatorics Department in Ettlingen, is offering an internship on the subject of free-space laser communications. The team develops simulations, theoretical models, image processing software and adaptive optics systems. More information about the Adaptive Optics Group at Fraunhofer IOSB can be found at www.iosb.fraunhofer.de/adaptive-optics

Goals
Aim of the internship is to study the possibility of wavefront sensing using angular selectivity properties of bandpass filters to locally modulate the amplitude of a wavefront. Local slopes of a perturbed wavefront (for example, after propagation through turbulence) can be sensed using such a filter and a camera. From the measured slopes, the well-established algorithms used in Shack-Hartmann wavefront sensing can be used to reconstruct the wavefront. Investigation of the applications, limits, and ideas for improvements of this new technology are the main focus of this 6-month internship.

Be part of change

You will be provided with extensive COTS optical materials and space on an optical table to build a demonstrator.
You will be asked to control a position controller to perform repeatable measurements within the scope of characterization studies.
You will be asked to extrapolate the results to identify alternative technologies that could benefit the angular-selective wavefront sensor.

What you contribute

Enrollment in Optical Engineering, Electrical Engineering, Physics, Photonics or a comparable discipline
Basic knowledge of optical systems and wavefront theory
Experience with optical laboratory work and alignment techniques
Familiarity with programming languages (e.g., Python, MATLAB, LabVIEW)
Interest in adaptive optics and free-space optical communications
Enjoyment of hands-on experimental work and learning new technologies
Good command of English (written and spoken)

What we offer

Central location: Well connected to public transportation networks
Hands-on research projects: Collaborating with industry partners and application of research results in real-life scenarios.
Individual supervision: Benefit from our professional accompaniment and an open, communicative exchange within the team.
Exciting tasks and creative freedom: Take responsibility and contribute your own ideas

The position is temporary. The duration of the internship must correspond to the required duration imposed by the sending university. We value and promote the diversity of our employees' skills and therefore welcome all applications – regardless of age, gender, nationality, ethnic and social origin, religion, ideology, disability, sexual orientation and identity. Severely disabled persons are given preference in the event of equal suitability. Our tasks are diverse and adaptable – for applicants with disabilities, we work together to find solutions that best promote their abilities. Remuneration according to the federal government guidelines for intern salaries.

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future.

Ready for a change? Then apply now and make a difference! Once we have received your online application, you will receive an automatic confirmation of receipt. We will then get back to you as soon as possible and let you know what happens next.

With questions about this project please contact:
Dr. Szymon Gladysz
Adaptive Optics Group Leader
Phone: +49 7243 992-120
E-mail: kontakt-adaptive-optik@iosb.fraunhofer.de

Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB

www.iosb.fraunhofer.de

Requisition Number: 82592 Application Deadline:

Key Skills

Optical EngineeringElectrical EngineeringPhysicsPhotonicsOptical SystemsWavefront TheoryOptical Laboratory WorkAlignment TechniquesProgramming LanguagesPythonMATLABLabVIEWAdaptive OpticsFree-Space Optical CommunicationsExperimental WorkLearning New TechnologiesEnglish