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Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging

We present a Fourier domain mode locking (FDML) fiber laser with a feedback loop allowing automatic startup without a priori knowledge of the fundamental drive frequency. The feedback can also regulate the drive frequency making the source robust against environmental variations. A control system sa...

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Detalles Bibliográficos
Autores principales: Murari, Kartikeya, Mavadia, Jessica, Xi, Jiefeng, Li, Xingde
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Optical Society of America 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130584/
https://www.ncbi.nlm.nih.gov/pubmed/21750775
http://dx.doi.org/10.1364/BOE.2.002005
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author Murari, Kartikeya
Mavadia, Jessica
Xi, Jiefeng
Li, Xingde
author_facet Murari, Kartikeya
Mavadia, Jessica
Xi, Jiefeng
Li, Xingde
author_sort Murari, Kartikeya
collection PubMed
description We present a Fourier domain mode locking (FDML) fiber laser with a feedback loop allowing automatic startup without a priori knowledge of the fundamental drive frequency. The feedback can also regulate the drive frequency making the source robust against environmental variations. A control system samples the energy of the light traversing the FDML cavity and uses a voltage controlled oscillator (VCO) to drive the tunable fiber Fabry-Perot filter in order to maximize that energy. We demonstrate a prototype self-starting, self-regulating FDML operating at 40 kHz with a full width tuning range of 140 nm around 1305 nm and a power output of ~40 mW. The laser starts up with no operator intervention in less than 5 seconds and exhibits improved spectral stability over a conventional FDML source. In OCT applications the source achieved over 120 dB detection sensitivity and an ~8.9-µm axial resolution.
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spelling pubmed-31305842011-07-12 Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging Murari, Kartikeya Mavadia, Jessica Xi, Jiefeng Li, Xingde Biomed Opt Express Optical Coherence Tomography We present a Fourier domain mode locking (FDML) fiber laser with a feedback loop allowing automatic startup without a priori knowledge of the fundamental drive frequency. The feedback can also regulate the drive frequency making the source robust against environmental variations. A control system samples the energy of the light traversing the FDML cavity and uses a voltage controlled oscillator (VCO) to drive the tunable fiber Fabry-Perot filter in order to maximize that energy. We demonstrate a prototype self-starting, self-regulating FDML operating at 40 kHz with a full width tuning range of 140 nm around 1305 nm and a power output of ~40 mW. The laser starts up with no operator intervention in less than 5 seconds and exhibits improved spectral stability over a conventional FDML source. In OCT applications the source achieved over 120 dB detection sensitivity and an ~8.9-µm axial resolution. Optical Society of America 2011-06-22 /pmc/articles/PMC3130584/ /pubmed/21750775 http://dx.doi.org/10.1364/BOE.2.002005 Text en ©2011 Optical Society of America http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially.
spellingShingle Optical Coherence Tomography
Murari, Kartikeya
Mavadia, Jessica
Xi, Jiefeng
Li, Xingde
Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title_full Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title_fullStr Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title_full_unstemmed Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title_short Self-starting, self-regulating Fourier domain mode locked fiber laser for OCT imaging
title_sort self-starting, self-regulating fourier domain mode locked fiber laser for oct imaging
topic Optical Coherence Tomography
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130584/
https://www.ncbi.nlm.nih.gov/pubmed/21750775
http://dx.doi.org/10.1364/BOE.2.002005
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