Internship | Technology development using Mode Mixing Fiber

Optical fibers are used in various optical systems for many different applications. Within the scope of this project, optical MultiMode Fibers (MMF) will be used as light distribution media to transport light from source to illumination location over a relative short distance (between 1 to 50 m). Using MMF high power light can be deliver from a point source flexibly to a designed and sometime hard-to-reach location. Typical applications can be found in: semiconductor, space, medical, energy and many others. For all these systems the light properties of the optical beam exiting the optical fiber is crucial for the right operation of the system. It becomes challenging with high power coherent light source, such as lasers. The optical properties at the output of the fiber, such as beam profile, polarization, fiber mode structures, speckle artifacts, are all largely dependent on the use of the fiber. Those effect are due to the multiple optical modes propagating through the fiber and the interference between different modes. To homogenize the output, the propagating modes need to be mixed and ‘scrambled’. Various techniques exist can help to achieve this goal.

In this project, an overview and comparison of MMF mode scrambling techniques will be made. First, the light in-coupling and out distribution of MMF will be characterized by experimental measurement. In following, mode scrambling techniques will be added to the measurement setup and will be tested. Through the data processing, the improvement by optimization strategies will be analyzed. The measurement setup needs to designed and the hardware such as light sources and camera’s has to be selected. You will work together with a team of optics scientist, optical engineer and system engineer on the technology development towards a few selected applications.

• Master student with physics or engineering background
• Hand on attitude
• Optics knowledge is preferred
• Team work

Project duration – 3 to 6 months

You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity and inclusion.

After the first CV selection, the application process will be conducted by the concerning department. TNO will provide a suitable internship agreement. If you have any questions about this vacancy, you can contact the contact person mentioned below.