CFEL-ULOCM

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2018-11-08
13:47
[PUBDB-2018-04339] Contribution to a conference proceedings/Contribution to a book
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Novel fiber-based ultrafast platform for multimodal optical virtual skin biopsy
Laser Congress 2018 (ASSL) : [Proceedings] - OSA, Washington, D.C., 2018. - ISBN 978-1-943580-48-4 - doi:10.1364/ASSL.2018.ATh5A.2
Advanced Solid State Lasers, ASSL, Boston, MABoston, MA, USA, 4 Nov 2018 - 8 Nov 20182018-11-042018-11-08
Washington, D.C. : OSA ATh5A.2 () [10.1364/ASSL.2018.ATh5A.2]  GO
We demonstrate a fiber-based ultrafast platform generating energetic femtosecond pulses at 1250 nm and 775 nm simultaneously, which enables label-free second-harmonic generation, third-harmonic generation, and two-photon excitation fluorescence imaging in human skin..
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2018-11-05
14:21
[PUBDB-2018-04149] Contribution to a conference proceedings/Contribution to a book
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Compact THz Accelerators: From Fiction to Reality
43rd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2018, NagoyaNagoya, Japan, 9 Sep 2018 - 14 Sep 20182018-09-092018-09-14 IEEE 1-3 () [10.1109/IRMMW-THz.2018.8510463]  GO
The use of THz radiation for electron acceleration and manipulation of electron bunches has progressed over the last decade to a level where practical implementations of THz-powered photoguns, LINACs and a wide range of beam manipulators have become possible. Here, we present a segmented terahertz electron accelerator and manipulator (STEAM) capable of performing multiple high-field operations on the 6D -phase-space of ultrashort electron bunches. [...]
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2018-09-25
14:32
OpenAccess [PUBDB-2018-03582] Journal Article
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Robust 700 MHz mode-locked Yb:fiber laser with a biased nonlinear amplifying loop mirror
Optics express 26(20), 26003 - 26009 () [10.1364/OE.26.026003]  GO
We demonstrate a self-starting 700 MHz repetition rate Yb:fiber laser incorporated with a phase biased nonlinear amplifying loop mirror as an artificial saturable absorber. Thelaser delivers a maximum power of 150 mW and a pulse width of 215 fs at a pump power of 710 mW. [...]
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2018-08-16
14:02
OpenAccess [PUBDB-2018-02981] Journal Article
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Tunable, Ultrafast Fiber-Laser Between 1.15 and 1.35 $\mu$m for Harmonic Generation Microscopy in Human Skin
We demonstrate a fiber-optic ultrafast tunable source for harmonic generation microscopy (HGM) in human skin. The source is based on a 31-MHz Er-fiber laser followed byself-phase modulation enabled spectral selection (SESS). [...]
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2018-06-28
13:16
OpenAccess [PUBDB-2018-02426] Contribution to a conference proceedings/Contribution to a book
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Megawatt peak power femtosecond source at 1.3 μm based on self-phase modulation enabled spectral selection
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SM4K.4
CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) 2 pp. () [10.1364/CLEO_SI.2018.SM4K.4]  GO
We demonstrate a megawatt peak power femtosecond source at 1.3 μm based on self-phase modulation enabled spectral selection by pumping optical fibers with negative group-velocity dispersion..
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2018-06-28
12:51
[PUBDB-2018-02424] Contribution to a conference proceedings/Contribution to a book
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Tightly synchronized two-color femtosecond source based on low-noise SPM-enabled spectral selection
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_AT.2018.JTh2A.162
CLEO: Applications and Technology, CLEO QELS, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) 2 pp. () [10.1364/CLEO_AT.2018.JTh2A.162]  GO
We demonstrate that SPM-enabled spectral selection generates low noise high-energy wavelength tunable femtosecond pulses that exhibit sub-fs relative timing jitter and therefore are tightly synchronized to the source laser pulse..
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2018-06-22
14:20
[PUBDB-2018-02363] Contribution to a conference proceedings/Contribution to a book
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High power offset-free ultrafast mid-IR source harnessing SPM-enabled spectral selection
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SF1N.6
CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) 2 pp. () [10.1364/CLEO_SI.2018.SF1N.6]  GO
We demonstrate a novel fiber approach for power scaling difference-frequency-generation based ultrafast mid-IR laser sources that are tunable from 7.4 μm to 16.8 μm with up to 5.3-mW average power at 9.3 μm..
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2018-06-22
13:42
OpenAccess [PUBDB-2018-02359] Contribution to a conference proceedings/Contribution to a book
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Excitation wavelength optimization of harmonic generation microscopy in human skin enabled by fiber-based femtosecond source tunable in 1.15-1.35 µm
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_AT.2018.AM1J.2
CLEO: Applications and Technology, CLEO AT, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) 2 pp. () [10.1364/CLEO_AT.2018.AM1J.2]  GO
We demonstrate a fiber-based tunable femtosecond source covering 1.15–1.35 μm based on self-phase modulation enabled spectral selection, which allows us to optimize the excitation wavelength for harmonic generation imaging in ex vivo human skin..
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2018-06-13
16:10
Embargoed OpenAccess [PUBDB-2018-02266] Journal Article
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Energy scalable, offset-free ultrafast mid-infrared source harnessing self-phase-modulation-enabled spectral selection
Optics letters 43(12), 2953 - 2956 () [10.1364/OL.43.002953]  GO
We demonstrate a high-power offset-free ultrafast mid-infrared (IR) laser source based on difference-frequency generation (DFG). Powerful signal pulses are obtained by filtering the rightmost spectral lobe of the optical spectra broadened by fiber-optic nonlinearities dominated by self-phase modulation. [...]
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2018-03-29
13:43
OpenAccess [PUBDB-2018-01602] Journal Article
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87-W 1018-nm Yb-fiber ultrafast seeding source for cryogenic Yb:YLF amplifier
Optics letters 43(8), 1686 - 1689 () [10.1364/OL.43.001686]  GO
We demonstrate a compact and robust Yb-fiber master-oscillator power-amplifier system operating at 1018 nm with 2.5-nm bandwidth and 1-ns stretched pulse duration. It produces 87-W average power and 4.9-μJ pulse energy, constituting a powerful seed source for cryogenically cooled ultrafast Yb: yttrium lithium fluoride (Yb:YLF) amplifiers..
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