Analysis of FDML lasers with meter range coherence

Tom Pfeiffer; Wolfgang Draxinger; Wolfgang Wieser; Thomas Klein; Markus Petermann; Robert Huber

doi:10.1117/12.2254792

21 February 2017 Analysis of FDML lasers with meter range coherence

Tom Pfeiffer, Wolfgang Draxinger, Wolfgang Wieser, Thomas Klein, Markus Petermann, Robert Huber

Proceedings Volume 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI; 100531T (2017) https://doi.org/10.1117/12.2254792
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated using a tunable vertical cavity surface emitting laser (VCSEL) and also using a Vernier-tunable laser. These sources provide relatively high sweep rates and meter range coherence lengths. In order to achieve similar coherence, we developed an extremely well dispersion compensated Fourier Domain Mode Locked (FDML) laser, running at 3.2 MHz sweep rate and 120 nm spectral bandwidth. We demonstrate that this laser offers meter range coherence and enables volumetric long range OCT of moving objects.

Citation Download Citation

Tom Pfeiffer, Wolfgang Draxinger, Wolfgang Wieser, Thomas Klein, Markus Petermann, and Robert Huber "Analysis of FDML lasers with meter range coherence", Proc. SPIE 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, 100531T (21 February 2017); https://doi.org/10.1117/12.2254792

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