1.7MHz, 840nm swept-source ophthalmic OCT

Marie Klufts; Wolfgang Draxinger; Simon Lotz; Robert Huber

doi:10.1117/12.3045055

1.7MHz, 840nm swept-source ophthalmic OCT

Marie Klufts, Wolfgang Draxinger, Simon Lotz, Robert Huber

Institute of Biomedical Optics

Abstract

We present an 840nm Fourier domain mode locked (FDML) based swept-source OCT system with an A-Scan rate of 1.7MHz. The laser shows promising performance for retinal imaging with 10mW output power and a theoretical axial resolution in water of 12μm. The system demonstrates shot-noise-limited behavior, achieving a sensitivity of 84dB and no roll-off over the analog bandwidth of the balanced photodetector. In-vivo ophthalmic images are presented to show the performances of the laser.

Original language	English
Title of host publication	Ophthalmic Technologies XXXV
Editors	Daniel X. Hammer, Derek Nankivil, Yuankai K. Tao
Number of pages	1
Volume	13300
Publisher	SPIE
Publication date	03.2025
Pages	1330004
DOIs	https://doi.org/10.1117/12.3045055
Publication status	Published - 03.2025

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title = "1.7MHz, 840nm swept-source ophthalmic OCT",

abstract = "We present an 840nm Fourier domain mode locked (FDML) based swept-source OCT system with an A-Scan rate of 1.7MHz. The laser shows promising performance for retinal imaging with 10mW output power and a theoretical axial resolution in water of 12μm. The system demonstrates shot-noise-limited behavior, achieving a sensitivity of 84dB and no roll-off over the analog bandwidth of the balanced photodetector. In-vivo ophthalmic images are presented to show the performances of the laser.",

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AU - Klufts, Marie

AU - Draxinger, Wolfgang

AU - Lotz, Simon

AU - Huber, Robert

PY - 2025/3

Y1 - 2025/3

N2 - We present an 840nm Fourier domain mode locked (FDML) based swept-source OCT system with an A-Scan rate of 1.7MHz. The laser shows promising performance for retinal imaging with 10mW output power and a theoretical axial resolution in water of 12μm. The system demonstrates shot-noise-limited behavior, achieving a sensitivity of 84dB and no roll-off over the analog bandwidth of the balanced photodetector. In-vivo ophthalmic images are presented to show the performances of the laser.

AB - We present an 840nm Fourier domain mode locked (FDML) based swept-source OCT system with an A-Scan rate of 1.7MHz. The laser shows promising performance for retinal imaging with 10mW output power and a theoretical axial resolution in water of 12μm. The system demonstrates shot-noise-limited behavior, achieving a sensitivity of 84dB and no roll-off over the analog bandwidth of the balanced photodetector. In-vivo ophthalmic images are presented to show the performances of the laser.

U2 - 10.1117/12.3045055

DO - 10.1117/12.3045055

M3 - Conference contribution

VL - 13300

SP - 1330004

BT - Ophthalmic Technologies XXXV

A2 - Hammer, Daniel X.

A2 - Nankivil, Derek

A2 - Tao, Yuankai K.

PB - SPIE

ER -

1.7MHz, 840nm swept-source ophthalmic OCT

Abstract

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