Photonics Laboratory of Munich University of Applied Sciences  

at the Department of Applied Sciences and Mechatronics 

 

The Photonics Laboratory develops and evaluates high precision optical fiber sensors that are especially adapted to the demands in medicine, industry and research.

  • Lectures in optoelectronics and fiber optic technology in the Bachelor and Master programs.
  • Research activities in optical fiber sensing based on fiber Bragg gratings (FBGs):
    • High-temperature annealing, calibration and sensing
    • Strain measurements of cartilage tissue
    • Hydrogen detection with Palladium-coated FBGs
    • Fiber-optic smart casts with embedded FBG sensors
  • Degree theses (Bachelor and Master) and doctoral theses (cooperative doctorate) in the field of fiber sensing.
  • Commissioned research for industrial partners


 		The Günther Paul Scholarship is intended to support outstanding students with an interest in optics and photonics, particularly from the second educational pathway. The Günther Paul Scholarship was awarded for the first time in 2024’. Further information Günther Paul Scholarship (hm.edu)
News


09.06. – 11.06.2026 ITG/GMA-Fachtagung Sensoren und Messsysteme 2026
  • Oral Presentations:
    S. Soni, "Fabrication and Characterization of a Sapphire Fabry-Perot Fiber Sensor for High-Temperature Measurement up to 1000 °C"
    A. Braunmüller, "Temperature-Compensated Hydrogen Sensing With In-Fiber Dual-FBG Fabry-Pérot Structures and Palladium-Based Thin Films"
  • Publications:
    S. Soni, "Fabrication and Characterization of a Sapphire Fabry-Perot Fiber Sensor for High-Temperature Measurement up to 1000 °C"; 23. ITG/GMA Fachtagung Sensoren und Messsysteme 2026, Nuremberg, Germany, 09.06. – 11.06.2026; Conference program
    A. Braunmüller, "Temperature-Compensated Hydrogen Sensing With In-Fiber Dual-FBG Fabry-Pérot Structures and Palladium-Based Thin Films"; 23. ITG/GMA Fachtagung Sensoren und Messsysteme 2026, Nuremberg, Germany, 09.06. – 11.06.2026; Conference program

24.07.2026 New Publication in Optics Express
  • A. Roehrl, F. Buchfellner, M. Machate, L. von Etzel, S. Hepp, A. Zach, J. Roths, "Ultra-low-loss directly written fiber Bragg gratings for high-power random Raman fiber lasers", Optics Express Vol. 34, Issue 13, pp. 24485-24500 (2026), DOI: 10.1364/OE.597713

01.06.2026 New Publication in Journal of Lightwave Technology
  • F. Buchfellner, A. Roehrl, S. Heissel, C. Eulenkamp, A. W. Koch, J. Roths, "Optical, Thermal and Mechanical Characterization of Standard and Thin-Clad Germanosilicate Single-Mode Fibers for Sensitivity-Enhanced Force Sensing With Fiber Bragg Gratings", Journal of Lightwave Technology, Volume: 44, Issue: 11, 01 June 2026, DOI: 10.1109/JLT.2026.3681301

30.07.2025 Photonics summer party
  • Our annual Photonics summer party brought together friends, students and professors to celebrate the end of an intensive semester. Prior to that, the industrial advisory board discussed future directions in a strategic meeting.
22.06. – 27.06.2025 CLEO World of Photonics Congress 2025
  • Poster Presentation:
    A. Roehrl, S. Heissel, F. Buchfellner, J. Roths, "Comparison of Broadband Loss in Fiber Bragg Gratings Manufactured with UV Phase Mask and Direct Writing Techniques"
  • Publications:
    A. Roehrl, S. Heissel, F. Buchfellner, J. Roths, "Comparison of Broadband Loss in Fiber Bragg Gratings Manufactured with UV Phase Mask and Direct Writing Techniques"; PROCEEDINGS VOLUME 12643

25.05. – 30.05.2025 OFS29 International Conference on Optical Fiber Sensors
  • Oral Presentation:
    F. Buchfellner, “Palladium/hafnium-coated pi-FBGs: a path to wavelength-encoded, zero-point-referenced, linearized, and temperature-decoupled hydrogen sensing”
  • Publications:
    F. Buchfellner, A. Roehrl, M. Yang, A. W. Koch, J. Roths, "Hydrogen sensing performance of partially Pd90:Ni10-coated pi-FBGs in nitrogen and air backgrounds"; Proc. SPIE 13639, 29th International Conference on Optical Fiber Sensors, 136398N (22 May 2025); DOI: 10.1117/12.3060951
    F. Buchfellner, Q. Bian, A. Roehrl, F. Zhang, M. Yang, A. W. Koch, J. Roths, "Palladium/hafnium-coated pi-FBGs: a path to wavelength-encoded, zero-point-referenced, linearized, and temperature-decoupled hydrogen sensing"; Proc. SPIE 13639, 29th International Conference on Optical Fiber Sensors, 136391F (22 May 2025); DOI: 10.1117/12.3062272; DOI: 10.1117/12.3062272
15.04.2025 New Publication in IEEE SENSORS JOURNAL
  • F. Buchfellner , Q. Bian , F. Zhang , A. Roehrl , A. Stadler , Minghong Yang, P.Schmid, A. W. Koch,J. Roths, "Linearized Temperature-Compensated Hydrogen Sensing With Partially Pd-Alloy-Coated π-FBGs"; IEEE SENSORS JOURNAL, VOL. 25, NO. 8, 15 APRIL 2025; DOI: 10.1109/JSEN.2025.3541292