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. Author manuscript; available in PMC: 2011 Jul 15.
Published in final edited form as: Opt Express. 2010 Sep 13;18(19):20029–20048. doi: 10.1364/OE.18.020029

Fig. 2.

Fig. 2

Short cavity light source. (A) Spectrum measured with OSA. (B) Sweep trigger signal, laser output, and A/D clock signal from the swept laser source. (C) OCT fringe data acquired at fixed 400 MSPS clock rate (top) and optically derived, variable frequency A/D clock (bottom) of a shallow fringe (left) and deep fringe (right). The red line indicates the phase of the fringe. (D) Laser sweeps from buffered configuration showing master sweep (top), copy sweep (middle), and combined master and copy sweeps (bottom). The usable portion of the sweep, considering sweep overlap, is indicated in red.