Patent ID: 8687201
Filing Date: 2014-04-01
Classification: A61B,G01B,H01S

Abstract:
1. A method of controlling an optical coherence tomography system comprising a light source comprising a tunable filter having an asymmetric sweep response, the method comprising: generating a first harmonic wave having a first frequency, wherein the first harmonic wave has a first amplitude indicative of a voltage and a first phase; generating a second harmonic wave having a second frequency, wherein the second harmonic wave has a second amplitude indicative of a voltage and a second phase; generating a third harmonic wave having a third frequency, wherein the third harmonic wave has a third amplitude indicative of a voltage and a third phase; generating a modified second harmonic wave; generating a modified third harmonic wave; and superpositioning the first harmonic wave, the modified second harmonic wave and the modified third harmonic wave to generate a drive waveform configured to cause a sweep response in a forward scan direction of the light source and a sweep response in a backward scan direction of the light source to be substantially symmetric and substantially linearize a sweep response of the light source.