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dc.contributor.authorTseng, Sheng-Haoen_US
dc.contributor.authorHuang, Tzu-Fengen_US
dc.contributor.authorYeh, Jun-Liangen_US
dc.contributor.authorChan, Ming-Cheen_US
dc.date.accessioned2019-04-02T05:59:45Z-
dc.date.available2019-04-02T05:59:45Z-
dc.date.issued2019-01-01en_US
dc.identifier.issn1077-260Xen_US
dc.identifier.urihttp://dx.doi.org/10.1109/JSTQE.2018.2846054en_US
dc.identifier.urihttp://hdl.handle.net/11536/147874-
dc.description.abstractPulsed lasers can be utilized to generate intensitymodulated light at the fundamental frequency of the laser repetition rate as well as higher order modulation (HOM) frequencies in the recent study. We also demonstrated the feasibility of using pulse lasers and fiber-wavelength-convertors as a light source in multicolor frequency-domain (FD) biophotonic systems. In this paper, we present a novel approach to enhancing the intensity of signals below 1 GHz in HOM-based FD systems simply by employing the fiber dispersion effect. The energy spectrum of HOMs can be redistributed to enhance the intensity of HOMs within the bandwidth of the photo-detector without the need for an external (optical or electrical) amplifier. We also demonstrate that the length of dispersive fiber can be optimized via numerical calculations, the results of which are in good agreement with experimental measurements. Finally, we demonstrate a frequencydomain-photon-migration system employing the fiber dispersion effect to enhance sub-GHz signals at a wavelength of 1.03 pro in order to recover the optical properties of turbid samples. Our measurements results demonstrate the superiority of the proposed FD source over the conventional directly modulated FD light source. Furthermore, the simple configuration of the proposed scheme makes it applicable to a wide range of FD biophotonic systems.en_US
dc.language.isoen_USen_US
dc.subjectFiber dispersionen_US
dc.subjectmode-locked lasersen_US
dc.subjectfemtosecond opticsen_US
dc.subjectsignal enhancementen_US
dc.subjectdiffused optical spectroscopyen_US
dc.subjectfrequency-domain biophotonic applicationsen_US
dc.titleSignal Enhancement by Fiber-Dispersion in Sub-GHz Frequency Domain Biophotonic Diagnosis Systemsen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/JSTQE.2018.2846054en_US
dc.identifier.journalIEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICSen_US
dc.citation.volume25en_US
dc.contributor.department光電學院zh_TW
dc.contributor.departmentCollege of Photonicsen_US
dc.identifier.wosnumberWOS:000436924000001en_US
dc.citation.woscount0en_US
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