US Patent:
20080007734, Jan 10, 2008
Inventors:
Boris Park - Somerville MA, US
Johannes De Boer - Somerville MA, US
International Classification:
G01B 9/02
G01B 11/02
US Classification:
356495000, 356479000, 356497000
Abstract:
Arrangement, system and method for a polarization effect for a interferometric signal received from sample in an optical coherence tomography (“OCT”) system are provided. In particular, an interferometric information associated with the sample and a reference can be received. The interferometric information is then processed thereby reducing a polarization effect created by a detection section of the OCT system on the interferometric signal. Then, an amount of a diattenuation of the sample is determined. The interferometric information can be provided at least partially along at least one optical fiber which is provided in optical communication with and upstream from a polarization separating arrangement. In another exemplary embodiment of the present invention, apparatus and method are provided for transmitting electromagnetic radiation to the sample. For example, at least one first arrangement can be provided which is configured to provide at least one first electromagnetic radiation. A frequency of radiation provided by the first arrangement can vary over time. At least one polarization modulating second arrangement can be provided which is configured to control a polarization state of at least one first electromagnetic radiation so as to produce at least one second electromagnetic radiation. Further, at least one third arrangement can be provided which is configured to receive the second electro-magnetic radiation, and provide at least one third electromagnetic radiation to the sample and at least one fourth electromagnetic radiation to a reference. The third and fourth electromagnetic radiations may be associated with the second electromagnetic radiation.