公开(公告)号：US10801829B2

公开(公告)日：2020-10-13

申请号：US16179743

申请日：2018-11-02

Applicant: AMO Development, LLC

Inventor： Thomas D. Raymond ,  Isaac Neal ,  Daniel R. Hamrick ,  Thomas M. Shay

IPC: G01B9/02 ,  A61B3/10 ,  A61B3/00

Abstract: Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.