1190 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT)

M. A. Bashir; S. Lotz; M. Klufts; I. Krestnikov; C. Jirauschek; R. Huber

doi:10.1117/12.2652884

8 March 2023 1190 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT)

M. A. Bashir, S. Lotz, M. Klufts, I. Krestnikov, C. Jirauschek, R. Huber

Proceedings Volume 12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII; 1236707 (2023) https://doi.org/10.1117/12.2652884
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

We demonstrate a Fourier domain mode locked (FDML) laser centered at 1190 nm with 2×410 kHz sweep repetition rate, a sweeping range of 100 nm and 2.5 mW output power. The laser is based on a quantum dot-semiconductor optical amplifier with small linewidth enhancement factor. The laser could be used as a probe laser in stimulated Raman scattering microscopy and it may be attractive for optical coherence tomography due to low water absorption and the spectral signature of lipids around 1200nm. Moreover, it is ideal to close the gap between FDML lasers at 1064 nm and 1300 nm. Combining these three lasers can enable ultrawideband sweeping to improve the axial OCT resolution down to 2 μm.

Conference Presentation

Citation Download Citation

M. A. Bashir, S. Lotz, M. Klufts, I. Krestnikov, C. Jirauschek, and R. Huber "1190 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT)", Proc. SPIE 12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII, 1236707 (8 March 2023); https://doi.org/10.1117/12.2652884

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