High-energy pulsed Raman fiber laser for biological tissue coagulation
Identifieur interne : 000821 ( Ncbi/Merge ); précédent : 000820; suivant : 000822High-energy pulsed Raman fiber laser for biological tissue coagulation
Auteurs : Hyoung Won Baac ; Néstor Uribe-Patarroyo ; Brett E. BoumaSource :
- Optics Express [ 1094-4087 ] ; 2014.
Abstract
We demonstrate a high-energy pulsed Raman fiber laser (RFL) with an emission wavelength of 1.44 μm, corresponding to an absorption peak of water. Microsecond pulses with >20 mJ/pulse and >40 W peak power were generated, well above the threshold for tissue coagulation and ablation. Here, we focus on the optical characterization and optimization of high-energy and high-power RFLs excited by an ytterbium fiber laser, comparing three configurations that use different Raman gain fibers, but all of which were prepared with a one-side opened, free-run mode without output mirrors. We show that the free-run configuration can generate sufficiently high energy without requiring a closed cavity design. Experimental RFL characteristics corresponded well with numerical simulations. We discuss the Stokes beam generation process in our system and loss mechanisms mainly associated with fiber Bragg gratings.
Url:
DOI: 10.1364/OE.22.007113
PubMed: 24664059
PubMed Central: 4083053
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">High-energy pulsed Raman fiber laser for biological tissue coagulation</title><author><name sortKey="Baac, Hyoung Won" sort="Baac, Hyoung Won" uniqKey="Baac H" first="Hyoung Won" last="Baac">Hyoung Won Baac</name></author><author><name sortKey="Uribe Patarroyo, Nestor" sort="Uribe Patarroyo, Nestor" uniqKey="Uribe Patarroyo N" first="Néstor" last="Uribe-Patarroyo">Néstor Uribe-Patarroyo</name></author><author><name sortKey="Bouma, Brett E" sort="Bouma, Brett E" uniqKey="Bouma B" first="Brett E." last="Bouma">Brett E. Bouma</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24664059</idno><idno type="pmc">4083053</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4083053</idno><idno type="RBID">PMC:4083053</idno><idno type="doi">10.1364/OE.22.007113</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000287</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000287</idno><idno type="wicri:Area/Pmc/Curation">000287</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000287</idno><idno type="wicri:Area/Pmc/Checkpoint">000138</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000138</idno><idno type="wicri:Area/Ncbi/Merge">000821</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">High-energy pulsed Raman fiber laser for biological tissue coagulation</title><author><name sortKey="Baac, Hyoung Won" sort="Baac, Hyoung Won" uniqKey="Baac H" first="Hyoung Won" last="Baac">Hyoung Won Baac</name></author><author><name sortKey="Uribe Patarroyo, Nestor" sort="Uribe Patarroyo, Nestor" uniqKey="Uribe Patarroyo N" first="Néstor" last="Uribe-Patarroyo">Néstor Uribe-Patarroyo</name></author><author><name sortKey="Bouma, Brett E" sort="Bouma, Brett E" uniqKey="Bouma B" first="Brett E." last="Bouma">Brett E. Bouma</name></author></analytic><series><title level="j">Optics Express</title><idno type="eISSN">1094-4087</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>We demonstrate a high-energy pulsed Raman fiber laser (RFL) with an emission wavelength of 1.44 μm, corresponding to an absorption peak of water. Microsecond pulses with >20 mJ/pulse and >40 W peak power were generated, well above the threshold for tissue coagulation and ablation. Here, we focus on the optical characterization and optimization of high-energy and high-power RFLs excited by an ytterbium fiber laser, comparing three configurations that use different Raman gain fibers, but all of which were prepared with a one-side opened, free-run mode without output mirrors. We show that the free-run configuration can generate sufficiently high energy without requiring a closed cavity design. Experimental RFL characteristics corresponded well with numerical simulations. We discuss the Stokes beam generation process in our system and loss mechanisms mainly associated with fiber Bragg gratings.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Opt Express</journal-id><journal-id journal-id-type="iso-abbrev">Opt Express</journal-id><journal-id journal-id-type="publisher-id">OE</journal-id><journal-title-group><journal-title>Optics Express</journal-title></journal-title-group><issn pub-type="epub">1094-4087</issn><publisher><publisher-name>Optical Society of America</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">24664059</article-id><article-id pub-id-type="pmc">4083053</article-id><article-id pub-id-type="publisher-id">203403</article-id><article-id pub-id-type="doi">10.1364/OE.22.007113</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>High-energy pulsed Raman fiber laser for biological tissue coagulation</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Baac</surname><given-names>Hyoung Won</given-names></name><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author"><name><surname>Uribe-Patarroyo</surname><given-names>Néstor</given-names></name></contrib><contrib contrib-type="author"><name><surname>Bouma</surname><given-names>Brett E.</given-names></name></contrib><aff id="aff1">Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114,<country country="US">USA</country></aff></contrib-group><author-notes><corresp id="cor1"><label>*</label><email xlink:href="baac.hyoungwon@mgh.harvard.edu">baac.hyoungwon@mgh.harvard.edu</email></corresp></author-notes><pub-date pub-type="epub"><day>19</day><month>3</month><year>2014</year></pub-date><pub-date pub-type="collection"><day>24</day><month>3</month><year>2014</year></pub-date><pub-date pub-type="pmc-release"><day>19</day><month>3</month><year>2015</year></pub-date><pmc-comment> PMC Release delay is 12 months and 0 days and was based on the
<volume>22</volume><issue>6</issue><fpage>7113</fpage><lpage>7123</lpage><history><date date-type="received"><day>18</day><month>12</month><year>2013</year></date><date date-type="rev-recd"><day>01</day><month>2</month><year>2014</year></date><date date-type="accepted"><day>05</day><month>2</month><year>2014</year></date></history><permissions><copyright-statement>© 2014 Optical Society of America</copyright-statement><copyright-year>2014</copyright-year><copyright-holder>Optical Society of America</copyright-holder></permissions><abstract><p>We demonstrate a high-energy pulsed Raman fiber laser (RFL) with an emission wavelength of 1.44 μm, corresponding to an absorption peak of water. Microsecond pulses with >20 mJ/pulse and >40 W peak power were generated, well above the threshold for tissue coagulation and ablation. Here, we focus on the optical characterization and optimization of high-energy and high-power RFLs excited by an ytterbium fiber laser, comparing three configurations that use different Raman gain fibers, but all of which were prepared with a one-side opened, free-run mode without output mirrors. We show that the free-run configuration can generate sufficiently high energy without requiring a closed cavity design. Experimental RFL characteristics corresponded well with numerical simulations. We discuss the Stokes beam generation process in our system and loss mechanisms mainly associated with fiber Bragg gratings.</p></abstract><kwd-group kwd-group-type="OCIS"><title>OCIS codes: </title><kwd>(140.3550) Lasers, Raman</kwd><kwd>(140.3510) Lasers, fiber</kwd><kwd>(170.3890) Medical optics instrumentation</kwd></kwd-group><funding-group><award-group><funding-source id="sp1">National Institutes of Health (NIH)<named-content content-type="doi">10.13039/100000002</named-content></funding-source><award-id rid="sp1">P41 EB015903</award-id></award-group></funding-group></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Baac, Hyoung Won" sort="Baac, Hyoung Won" uniqKey="Baac H" first="Hyoung Won" last="Baac">Hyoung Won Baac</name><name sortKey="Bouma, Brett E" sort="Bouma, Brett E" uniqKey="Bouma B" first="Brett E." last="Bouma">Brett E. Bouma</name><name sortKey="Uribe Patarroyo, Nestor" sort="Uribe Patarroyo, Nestor" uniqKey="Uribe Patarroyo N" first="Néstor" last="Uribe-Patarroyo">Néstor Uribe-Patarroyo</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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