The present invention relates to an apparatus and a method combining achromatic complex FDOCT signal reconstruction with a common path and dual beam configuration. The complex signal reconstruction allows resolving the complex ambiguity of the Fourier transform and to enhance the achievable depth range by a factor of two. The dual beam configuration shares the property of high phase stability with common path FDOCT. This is of importance for a proper complex signal reconstruction and is in particular useful in combination with handheld probes such as in endoscopy and catheter applications. The advantages of the present invention are in particular the flexibility to choose arbitrarily positioned interfaces in the sample arm as reference together with the possibility to compensate for dispersion.
申请公布号
WO2008087613(A3)
申请公布日期
2008.11.20
申请号
WO2008IB50205
申请日期
2008.01.21
申请人
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL);LEITGEB, RAINER;BACHMANN, ADRIAN;VILLIGER, MARTIN;MICHAELY, ROLAND;LASSER, THEO
发明人
LEITGEB, RAINER;BACHMANN, ADRIAN;VILLIGER, MARTIN;MICHAELY, ROLAND;LASSER, THEO