Coherent fiber supercontinuum for biophotonics

Tu, Haohua; Boppart, Stephen A.

doi:10.1002/lpor.201200014

Cited by 124 publications

(60 citation statements)

References 184 publications

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“…Therefore, a third optical fiber application area for OCT is to spectrally broaden the femtosecond pulses from solid-state lasers. [110][111][112] An early application of this technique was demonstrated by taking advantage of the high peak intensities associated with femtosecond pulse trains generated by an all solid-state Kerrlens mode-locked Cr4+:forsterite laser source. 110 In this scheme, using self-phase modulation in a dispersion-shifted SMF increased the spectral bandwidth of the source.…”

Section: Spectral Broadening Of Solid-state Laser Outputmentioning

confidence: 99%

Review of diverse optical fibers used in biomedical research and clinical practice

et al. 2014

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Abstract. Optical fiber technology has significantly bolstered the growth of photonics applications in basic life sciences research and in biomedical diagnosis, therapy, monitoring, and surgery. The unique operational characteristics of diverse fibers have been exploited to realize advanced biomedical functions in areas such as illumination, imaging, minimally invasive surgery, tissue ablation, biological sensing, and tissue diagnosis. This review paper provides the necessary background to understand how optical fibers function, to describe the various categories of available fibers, and to illustrate how specific fibers are used for selected biomedical photonics applications. Research articles and vendor data sheets were consulted to describe the operational characteristics of conventional and specialty multimode and single-mode solid-core fibers, double-clad fibers, hard-clad silica fibers, conventional hollow-core fibers, photonic crystal fibers, polymer optical fibers, side-emitting and side-firing fibers, middle-infrared fibers, and optical fiber bundles. Representative applications from the recent literature illustrate how various fibers can be utilized in a wide range of biomedical disciplines. In addition to helping researchers refine current experimental setups, the material in this review paper will help conceptualize and develop emerging optical fiber-based diagnostic and analysis tools.

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Section: Spectral Broadening Of Solid-state Laser Outputmentioning

confidence: 99%

Review of diverse optical fibers used in biomedical research and clinical practice

et al. 2014

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“…In contrast, low temporal coherence associated with large pulse-to-pulse fluctuations often plays a precision or resolution limiting role, for example in modalities using the coherence directly as content in the acquired signal, such as optical coherence tomography [5,6] or coherent antiStokes Raman scattering (CARS) spectroscopy [7]. Since spectral amplitude and phase fluctuations also translate into temporal jitter, ultrafast photonics applications usually demand SC sources with a high degree of coherence to enable, for example, beam synchronization and extraction of time-resolved information in multi-beam pump-probe techniques, nonlinear pulse compression, multimodal bio-photonic imaging, or coherent control experiments [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Limits of coherent supercontinuum generation in normal dispersion fibers

et al. 2017

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We study the largely unexplored transition between coherent and noise-seeded incoherent continuum generation in all-normal dispersion (ANDi) fibers and show that highly coherent supercontinua with spectral bandwidths of one octave can be generated with long pump pulses of up to 1.5 ps duration, corresponding to soliton orders of up to N = 600. In terms of N, this corresponds to an approximately 50 times increase of the coherent regime compared to anomalous dispersion pumping. In the transition region between coherent and incoherent spectral broadening we observe the manifestation of nonlinear phenomena that we term incoherent cloud formation and incoherent optical wave breaking, which lead to a gradual or instantaneous coherence collapse of SC spectral components, respectively. The role played by stimulated Raman scattering and parametric four-wave mixing during SC generation in ANDi fibers is shown to be more extensive than previously recognized: their nonlinear coupling contributes to the suppression of incoherent dynamics at short pump pulse durations, while it is responsible for non-phasematched parametric amplification of noise observed in the long pulse regime. We further discuss the dependence of SC coherence on fiber design, and present basic experimental verifications for our findings using single-shot detection of SC spectra generated by picosecond pulses. This work outlines both the further potential as well as the limitations of broadband coherent light source development for applications such as metrology, nonlinear imaging, and ultrafast photonics, amongst others.

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“…[http://dx.doi.org/10.1063/1.4901508] Photonic crystal fibers (PCFs) were invented by Russell et al in the early 1990s, 1 and have attracted widespread interest throughout the scientific community owing to their numerous applications in many fields as optical fiber communication, 2 optical sensing, 3 biomedical imaging, 4 and fundamental research. 5,6 Especially, since PCFs offer greatly enhanced dispersion or nonlinearity design freedom, they can be used for controlling the spectral and temporal characteristics of ultrafast pulses and yield a series of nonlinear behaviors, 7 such as white-light supercontinuum generation, 8 megawatt soliton generation, 9 soliton self-frequency shift cancellation (SSFSC), 10 soliton blueshift, 11,12 and so forth.…”

mentioning

confidence: 99%

Multiple soliton self-frequency shift cancellations in a temporally tailored photonic crystal fiber

Liu

Kang

et al. 2014

Applied Physics Letters

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We report the generation of multiple soliton self-frequency shift cancellations in a temporally tailored tellurite photonic crystal fiber (PCF). The temporally regulated group velocity dispersion (GVD) is generated in the fiber by soliton induced optical Kerr effect. Two red-shifted dispersive waves spring up when two Raman solitons meet their own second zero-dispersion-wavelengths in the PCF. These results show how, through temporally tailored GVD, nonlinearities can be harnessed to generate unexpected effects.

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Coherent fiber supercontinuum for biophotonics

Cited by 124 publications

References 184 publications

Review of diverse optical fibers used in biomedical research and clinical practice

Review of diverse optical fibers used in biomedical research and clinical practice

Limits of coherent supercontinuum generation in normal dispersion fibers

Multiple soliton self-frequency shift cancellations in a temporally tailored photonic crystal fiber

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