Multi-channel 400 kHz 840nm swept-source OCT system based on a photonic-electronic integrated circuit

Stefan Richter; Arno M. Krause; Eisabet A. Rank; Stefan Nevlacsil; Michael Kempe; Paul Muellner; Rainer Hainberger; Stefan Gloor; Marcus Duelk; Nanko Verwaal; Leonhard Klein; Martin Sagmeister; Gerald Meinhardt; Jochen Kraft; Moises Jezzini; Daniel Carey; Wolfgang Drexler

doi:10.1117/12.2612285

7 March 2022 Multi-channel 400 kHz 840nm swept-source OCT system based on a photonic-electronic integrated circuit

Stefan Richter, Arno M. Krause, Eisabet A. Rank, Stefan Nevlacsil, Michael Kempe, Paul Muellner, Rainer Hainberger, Stefan Gloor, Marcus Duelk, Nanko Verwaal, Leonhard Klein, Martin Sagmeister, Gerald Meinhardt, Jochen Kraft, Moises Jezzini, Daniel Carey, Wolfgang Drexler

Author Affiliations +

Proceedings Volume PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; PC119480K (2022) https://doi.org/10.1117/12.2612285
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

We report on a swept-source OCT system based on a photonic-electronic integrated circuit. It enables a parallelization of data acquisition resulting in an effective A-scan rate of 4x100 kHz at a central wavelength of 840 nm. The monolithic co-integration of photonic elements forming the multiplexed interferometers and the system electronics on one chip allows a very compact OCT engine in a photonic package. Integrated in an ophthalmic system, the maximum sensitivity was estimated to be 91 dB with an optical power of 4x520 µW at the model eye. An eye phantom was imaged at 400 kHz showing its layered structure.

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Stefan Richter, Arno M. Krause, Eisabet A. Rank, Stefan Nevlacsil, Michael Kempe, Paul Muellner, Rainer Hainberger, Stefan Gloor, Marcus Duelk, Nanko Verwaal, Leonhard Klein, Martin Sagmeister, Gerald Meinhardt, Jochen Kraft, Moises Jezzini, Daniel Carey, and Wolfgang Drexler "Multi-channel 400 kHz 840nm swept-source OCT system based on a photonic-electronic integrated circuit", Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC119480K (7 March 2022); https://doi.org/10.1117/12.2612285

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KEYWORDS

Optical coherence tomography

Integrated circuits

Photonic integrated circuits

Eye

Data acquisition

Multiplexing

Eye models

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