FIGURE 1.

Schematic of a fiber-based SD-OCT setup and a nerve chamber in its sample arm. The optical setup measures nerve movement relative to a stationary glass-saline interface. Nerve is positioned in a 20-mm-long and 1-mm-wide groove. Electrical stimulation and recording electrodes are made of platinum. Cross-sectional images can be acquired by scanning the beam over the sample laterally; however, the beam is stationary during the actual measurement. ASL, three element air-spaced lens; C, light collimator; G, transmission grating; LSC, line scan camera; SLD, superluminescent diode; Ti:Sapph, mode-locked titanium sapphire laser. Inset shows the optical read out.