  Optical coherence tomography (OCT) applications like ultra-widefield and full
eye-length imaging are of high interest for various diagnostic purposes. In
swept-source OCT these techniques require a swept light source, which is
coherent over the whole imaging depth. We present a zero roll-off 1060 nm
Fourier Domain Mode Locked-Laser (FDML-Laser) for retinal OCT imaging at 1.7
MHz A-scan rate and first long-range imaging results with it. Several steps
such as improved dispersion compensation and frequency regulation were
performed and will be discussed. Besides virtually no loss in OCT signal over
the maximum depth range of 4.6 mm and very good dynamic range was observed.
Roll-off measurements show no decrease of the point-spread function (PSF),
while maintaining a high dynamic range.
