A 32-beam, circular-ranging OCT system for video-rate, volumetric, laparoscopic imaging

Yongjoo Kim; Yong-Chul Yoon; Hyun-Sang Park; Tae Shik Kim; Ahhyun S. Nam; Danielle J. Harper; Norman Lippok; Rafael A Lomeli-Navarro; Benjamin J. Vakoc

doi:10.1117/12.2653025

9 March 2023 A 32-beam, circular-ranging OCT system for video-rate, volumetric, laparoscopic imaging

Yongjoo Kim, Yong-Chul Yoon, Hyun-Sang Park, Tae Shik Kim, Ahhyun S. Nam, Danielle J. Harper, Norman Lippok, Rafael A Lomeli-Navarro, Benjamin J. Vakoc

Author Affiliations +

Proceedings Volume PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII; PC123670K (2023) https://doi.org/10.1117/12.2653025
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

A 32-channel CR-OCT system was developed to facilitate a data-efficient acquisition of three-dimensional imaging data in laparoscopy. The system consists of a frequency comb source, a high-power doped-fiber optical amplifier, an all fiber-based, 32-channel interferometer, a 32-beam MEMs-based forward-looking 2D laparoscopic probe, and 32-channel detection channels. A novel phase and polarization modulation circuit was included to allow complex and polarization-resolved fringe detection. The system operated at an effective A-line of 10 MHz. We demonstrate video-rate volumetric CR-OCT imaging of a patterned sample and polarization-sensitive imaging of ex vivo tissues.

Conference Presentation

Citation Download Citation

Yongjoo Kim, Yong-Chul Yoon, Hyun-Sang Park, Tae Shik Kim, Ahhyun S. Nam, Danielle J. Harper, Norman Lippok, Rafael A Lomeli-Navarro, and Benjamin J. Vakoc "A 32-beam, circular-ranging OCT system for video-rate, volumetric, laparoscopic imaging", Proc. SPIE PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII, PC123670K (9 March 2023); https://doi.org/10.1117/12.2653025

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