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dc.contributor.authorTsai, Tsung-Han
dc.contributor.authorZhou, Chao
dc.contributor.authorAdler, Desmond C.
dc.contributor.authorFujimoto, James G.
dc.date.accessioned2012-08-01T17:27:46Z
dc.date.available2012-08-01T17:27:46Z
dc.date.issued2009-11
dc.date.submitted2009-09
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/1721.1/71934
dc.description.abstractWe demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep rate of 1kHz and 120kHz, respectively over a 135nm tuning range centered at 1310nm with average output powers of 50mW. A 25GHz free spectral range frequency comb filter in the swept lasers causes the lasers to generate a series of well defined frequency steps. The narrow bandwidth (0.015nm) of the frequency comb filter enables a ~-1.2dB sensitivity roll off over ~3mm range, compared to conventional swept source and FDML lasers which have −10dB and −5dB roll offs, respectively. Measurements at very long ranges are possible with minimal sensitivity loss, however reflections from outside the principal measurement range of 0-3mm appear aliased back into the principal range. In addition, the frequency comb output from the lasers are equally spaced in frequency (linear in k-space). The filtered laser output can be used to self-clock the OCT interference signal sampling, enabling direct fast Fourier transformation of the fringe signals, without the need for fringe recalibration procedures. The design and operation principles of FC swept lasers are discussed and designs for short cavity lasers for OCT and interferometric measurement applications are proposed.en_US
dc.description.sponsorshipNational Institutes of Health (U.S.) (R01-CA75289-12)en_US
dc.description.sponsorshipNational Institutes of Health (U.S.) (R01-EY011289-24)en_US
dc.description.sponsorshipUnited States. Air Force Office of Scientific Research (FA9550-07-1-0014)en_US
dc.description.sponsorshipUnited States. Dept. of Defense. Medical Free Electron Laser Program (FA9550-07-1-0101)en_US
dc.description.sponsorshipNational Science council of Taiwan. Taiwan Merit Scholarshipen_US
dc.description.sponsorshipCenter for Integration of Medicine and Innovative Technologyen_US
dc.language.isoen_US
dc.publisherOptical Society of Americaen_US
dc.relation.isversionofhttp://dx.doi.org/10.1364/OE.17.021257en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourcePubMed Centralen_US
dc.titleFrequency comb swept lasersen_US
dc.typeArticleen_US
dc.identifier.citationTsai, Tsung-Han et al. “Frequency Comb Swept Lasers.” Optics Express 17.23 (2009): 21257.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.approverFujimoto, James G.
dc.contributor.mitauthorTsai, Tsung-Han
dc.contributor.mitauthorZhou, Chao
dc.contributor.mitauthorAdler, Desmond C.
dc.contributor.mitauthorFujimoto, James G.
dc.relation.journalOptics Expressen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsTsai, Tsung-Han; Zhou, Chao; Adler, Desmond C.; Fujimoto, James G.en
dc.identifier.orcidhttps://orcid.org/0000-0002-0828-4357
mit.licenseOPEN_ACCESS_POLICYen_US


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