TY - JOUR
T1 - Extended coherence length megahertz FDML and its application for anterior segment imaging
AU - Wieser, Wolfgang
AU - Klein, Thomas
AU - Adler, Desmond C.
AU - Trépanier, Francois
AU - Eigenwillig, Christoph M.
AU - Karpf, Sebastian
AU - Schmitt, Joseph M.
AU - Huber, Robert
PY - 2012/1/1
Y1 - 2012/1/1
N2 - We present a 1300 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT) that combines both, a high 1.6 MHz wavelength sweep rate and an ultra-long instantaneous coherence length for rapid volumetric deep field imaging. By reducing the dispersion in the fiber delay line of the FDML laser, the instantaneous coherence length and hence the available imaging range is approximately quadrupled compared to previously published MHz-FDML setups, the imaging speed is increased by a factor of 16 compared to previous extended coherence length results. We present a detailed characterization of the FDML laser performance. We demonstrate for the first time MHz-OCT imaging of the anterior segment of the human eye. The OCT system provides enough imaging depth to cover the whole range from the top surface of the cornea down to the crystalline lens.
AB - We present a 1300 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT) that combines both, a high 1.6 MHz wavelength sweep rate and an ultra-long instantaneous coherence length for rapid volumetric deep field imaging. By reducing the dispersion in the fiber delay line of the FDML laser, the instantaneous coherence length and hence the available imaging range is approximately quadrupled compared to previously published MHz-FDML setups, the imaging speed is increased by a factor of 16 compared to previous extended coherence length results. We present a detailed characterization of the FDML laser performance. We demonstrate for the first time MHz-OCT imaging of the anterior segment of the human eye. The OCT system provides enough imaging depth to cover the whole range from the top surface of the cornea down to the crystalline lens.
UR - http://www.scopus.com/inward/record.url?scp=84867275939&partnerID=8YFLogxK
U2 - 10.1364/BOE.3.002647
DO - 10.1364/BOE.3.002647
M3 - Journal articles
AN - SCOPUS:84867275939
VL - 3
SP - 2647
EP - 2657
JO - Biomedical Optics Express
JF - Biomedical Optics Express
SN - 2156-7085
IS - 10
ER -