850 nm FDML: performance and challenges

M. Klufts, S. Lotz, M. A. Bashir, T. Pfeiffer, A. Mlynek, W. Wieser, A. Chamorovskiy, V. Shidlovski, R. Huber


We demonstrate a Fourier domain mode locked (FDML) laser centered around 850 nm with a sweeping range of 50 nm, a fundamental repetition rate of 2×416 kHz and an output power of 2 mW. A new cavity design using three chirped Fiber Bragg gratings is required to overcome sweeping limitations caused by high dispersion. Other solutions to address challenges such as high loss and high polarization mode dispersion will be discussed along with performance. A main application of this laser will be retinal imaging, but it might also be applicable for TiCo-Raman and SLIDE microscopy.
Original languageEnglish
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII
EditorsJoseph A. Izatt, James G. Fujimoto
Number of pages1
Publication date08.03.2023
Publication statusPublished - 08.03.2023

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