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.
Original languageEnglish
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI
EditorsValery V. Tuchin, Joseph A. Izatt, James G. Fujimoto
Publication date21.02.2017
ISBN (Print)978-151060547-3
Publication statusPublished - 21.02.2017
- San Francisco, United States
Duration: 28.01.201702.02.2017

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


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