Details

Autor(en) / Beteiligte

• Yun, S
• Tearney, G
• de Boer, J
• Bouma, B

Titel

Removing the depth-degeneracy in optical frequency domain imaging with frequency shifting

Ist Teil von

• Optics express, 2004-10, Vol.12 (20), p.4822-4828

Ort / Verlag

United States

Erscheinungsjahr

2004

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• 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.