Combining holographic optical coherence tomography and laser Doppler holography

Abstract

Full-field swept-source optical coherence tomography (FF-SS-OCT) and laser Doppler holography (LDH) are two holographic imaging techniques presenting unique capabilities for ophthalmic applications. We report on adapting an FF-SS-OCT instrument with minimal effort to allow both OCT and LDH imaging at a fast alternation rate. We used this instrument to monitor retinal blood flow with both modalities to better understand the physiological signal measured with each technique. The combination of these two imaging techniques holds potential in ophthalmology for basic research and clinical diagnosis.