title: Direct electronic linearization for camera-based spectral domain optical coherence tomography.
abstract: An electronic method of k-space linearization for an analog camera for use in optical coherence tomography is demonstrated. The method applies a chirp to the data transfer clock signal of the camera in order to temporally compensate for diffraction that is nonlinear in wavenumber. The optimum parameters are obtained experimentally and theoretically and are shown to be in good accordance. Close to maximum measurable axial range, by applying this method, the FWHM of the point spread function is reduced by a factor of 5.6 and sensitivity is increased by 9.8 dB.
authors: Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury CT2 7NH, UK. atpayne6@yahoo.co.uk
authors: Andrew
authors: A
authors: Payne
authors: Adrian Gh
authors: AG
authors: Podoleanu
mesh_terms: D055615:Electrical Equipment and Supplies; D055096:Optical Devices; D013997:Time Factors; D041623:Tomography, Optical Coherence / Q000191:economics / Q000295:instrumentation*