TY - JOUR
T1 - Towards phase-stabilized Fourier domain mode-locked frequency combs
AU - Grill, Christin
AU - Blömker, Torben
AU - Schmidt, Mark
AU - Kastner, Dominic
AU - Pfeiffer, Tom
AU - Kolb, Jan Philip
AU - Draxinger, Wolfgang
AU - Karpf, Sebastian
AU - Jirauschek, Christian
AU - Huber, Robert
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - Fourier domain mode-locked (FDML) lasers are some of the fastest wavelength-swept light sources, and used in many applications like optical coherence tomography (OCT), OCT endoscopy, Raman microscopy, light detection and ranging, and two-photon microscopy. For a deeper understanding of the underlying laser physics, it is crucial to investigate the light field evolution of the FDML laser and to clarify whether the FDML laser provides a frequency comb structure. In this case, the FDML would output a coherent sweep in frequency with a stable phase relation between output colours. To get access to the phase of the light field, a beat signal measurement with a stable, monochromatic laser is performed. Here we show experimental evidence of a well-defined phase evolution and a comb-like structure of the FDML laser. This is in agreement with numerical simulations. This insight will enable new applications in jitter-free spectral-scanning, coherent, synthetic THz-generation and as metrological time-frequency ruler.
AB - Fourier domain mode-locked (FDML) lasers are some of the fastest wavelength-swept light sources, and used in many applications like optical coherence tomography (OCT), OCT endoscopy, Raman microscopy, light detection and ranging, and two-photon microscopy. For a deeper understanding of the underlying laser physics, it is crucial to investigate the light field evolution of the FDML laser and to clarify whether the FDML laser provides a frequency comb structure. In this case, the FDML would output a coherent sweep in frequency with a stable phase relation between output colours. To get access to the phase of the light field, a beat signal measurement with a stable, monochromatic laser is performed. Here we show experimental evidence of a well-defined phase evolution and a comb-like structure of the FDML laser. This is in agreement with numerical simulations. This insight will enable new applications in jitter-free spectral-scanning, coherent, synthetic THz-generation and as metrological time-frequency ruler.
UR - http://www.scopus.com/inward/record.url?scp=85136492917&partnerID=8YFLogxK
UR - https://www.nature.com/articles/s42005-022-00960-w
UR - https://zenodo.org/records/6561441
U2 - 10.1038/s42005-022-00960-w
DO - 10.1038/s42005-022-00960-w
M3 - Journal articles
AN - SCOPUS:85136492917
SN - 2399-3650
VL - 5
JO - Communications Physics
JF - Communications Physics
IS - 1
M1 - 212
ER -
