Superior dynamic range roll-off in a MHz Fourier domain mode-locked laser by a high-finesse Fabry--Pérot filter

Simon Lotz; Robert Huber

doi:10.1364/OL.567200

Superior dynamic range roll-off in a MHz Fourier domain mode-locked laser by a high-finesse Fabry--Pérot filter

Simon Lotz, Robert Huber

Institut für Biomedizinische Optik

1 Zitat (Scopus)

Abstract

In intraoperative optical coherence tomography (OCT), the dynamic range (DNR) and its roll-off are critical parameters to simultaneously image weak scattering and highly reflective surfaces and maintain image fidelity across the entire axial imaging range. This study demonstrates improved DNR roll-off performance using a high-finesse Fabry--Pérot tunable filter (FFP-TF) in a Fourier domain mode-locked (FDML) laser. Comparative measurements between high- and low-finesse filters reveal that increased finesse reduces intensity noise and flattens the roll-off of a 60.5-dB dynamic range from 3.71 dB/mm to 1.33 dB/mm, highlighting the critical role of FFP-TF finesse in FDML laser optimization.

Originalsprache	Englisch
Zeitschrift	Opt. Lett.
Jahrgang	50
Ausgabenummer	17
Seiten (von - bis)	5310-5313
Seitenumfang	4
DOIs	https://doi.org/10.1364/OL.567200
Publikationsstatus	Veröffentlicht - 01.09.2025

Fördermittel

Deutsche Forschungsgemeinschaft (EXC 2167-390884018); Bundesministerium f\u00FCr Bildung und Forschung (13GW0227B, 13N14665); Schleswig-Holstein (Excellence Chair Program); Bundesministerium f\u00FCr Wirtschaft und Klimaschutz (KK5143004AB3).

Träger	Trägernummer
Deutsche Forschungsgemeinschaft	EXC 2167-390884018
Bundesministerium für Bildung und Forschung	13GW0227B, 13N14665
Bundesministerium für Wirtschaft und Klimaschutz	KK5143004AB3

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10.1364/OL.567200

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title = "Superior dynamic range roll-off in a MHz Fourier domain mode-locked laser by a high-finesse Fabry--P{\'e}rot filter",

abstract = "In intraoperative optical coherence tomography (OCT), the dynamic range (DNR) and its roll-off are critical parameters to simultaneously image weak scattering and highly reflective surfaces and maintain image fidelity across the entire axial imaging range. This study demonstrates improved DNR roll-off performance using a high-finesse Fabry--P{\'e}rot tunable filter (FFP-TF) in a Fourier domain mode-locked (FDML) laser. Comparative measurements between high- and low-finesse filters reveal that increased finesse reduces intensity noise and flattens the roll-off of a 60.5-dB dynamic range from 3.71 dB/mm to 1.33 dB/mm, highlighting the critical role of FFP-TF finesse in FDML laser optimization.",

author = "Simon Lotz and Robert Huber",

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AU - Lotz, Simon

AU - Huber, Robert

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Y1 - 2025/9/1

N2 - In intraoperative optical coherence tomography (OCT), the dynamic range (DNR) and its roll-off are critical parameters to simultaneously image weak scattering and highly reflective surfaces and maintain image fidelity across the entire axial imaging range. This study demonstrates improved DNR roll-off performance using a high-finesse Fabry--Pérot tunable filter (FFP-TF) in a Fourier domain mode-locked (FDML) laser. Comparative measurements between high- and low-finesse filters reveal that increased finesse reduces intensity noise and flattens the roll-off of a 60.5-dB dynamic range from 3.71 dB/mm to 1.33 dB/mm, highlighting the critical role of FFP-TF finesse in FDML laser optimization.

AB - In intraoperative optical coherence tomography (OCT), the dynamic range (DNR) and its roll-off are critical parameters to simultaneously image weak scattering and highly reflective surfaces and maintain image fidelity across the entire axial imaging range. This study demonstrates improved DNR roll-off performance using a high-finesse Fabry--Pérot tunable filter (FFP-TF) in a Fourier domain mode-locked (FDML) laser. Comparative measurements between high- and low-finesse filters reveal that increased finesse reduces intensity noise and flattens the roll-off of a 60.5-dB dynamic range from 3.71 dB/mm to 1.33 dB/mm, highlighting the critical role of FFP-TF finesse in FDML laser optimization.

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JO - Opt. Lett.

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ER -

Superior dynamic range roll-off in a MHz Fourier domain mode-locked laser by a high-finesse Fabry--Pérot filter

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