Removing the depth-degeneracy in optical frequency domain imaging with frequency shifting.
نویسندگان
چکیده
A novel technique using an acousto-optic frequency shifter in optical frequency domain imaging (OFDI) is presented. The frequency shift eliminates the ambiguity between positive and negative differential delays, effectively doubling the interferometric ranging depth while avoiding image cross-talk. A signal processing algorithm is demonstrated to accommodate nonlinearity in the tuning slope of the wavelength-swept OFDI laser source.
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ورودعنوان ژورنال:
- Optics express
دوره 12 20 شماره
صفحات -
تاریخ انتشار 2004