Patent ID: 6943892
Filing Date: 2005-09-13
Classification: G01J,G02B

Abstract:
1. An instrument for performing interferometry comprising: first and second lengths of multimode optical fiber; an optical coupler for coupling light to and from respective first ends of said first and second lengths of multimode optical fiber; a first mirror at a second end of said first multimode optical fiber for reflecting the light therein; a second mirror at a second end of said second multimode optical fiber for reflecting the light therein; wherein at least said first mirror is a scannable mirror; means for scanning said scannable mirror; a detector coupled to said optical coupler for receiving at least a portion of the light reflected from said first and second mirrors and producing an output signal representative thereof; wherein said first and second multimode optical fibers produce a modal dispersion of light therein and an effect of modal dispersion is present in the output signal produced by said detector, and a processer coupled to said detector for reducing the effect of modal dispersion of the output signal.