Integrated dual swept source alternating same scan band for OCT medical imaging

摘要

An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal to form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm.

主权项

1. An optical coherence analysis system comprising:
a first swept source that generates a first optical signal that is tuned over a spectral scan band, wherein the first swept source comprises a tunable filter for tuning the first optical signal; a second swept source that generates a second optical signal that is tuned over same spectral scan band as the first swept source, wherein the second swept source comprises a tunable filter for tuning the second optical signal; a combiner for combining the first optical signal and the second optical signal to form a combined optical signal; an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, the interferometer including a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm; and a shared tuning controller for controlling the tuning of the first optical signal and the second optical signal over the same spectral scan band by driving the tunable filter of the first swept source and by driving the tunable filter of the second swept source in an alternating time multiplexed fashion.