CFEL-ULOCM

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2018-02-06
11:33
OpenAccess [PUBDB-2018-01075] Journal Article
; ; ; et al
Megawatt peak power tunable femtosecond source based on self-phase modulation enabled spectral selection
Optics express 26(3), 3684-3695 (2018) [10.1364/OE.26.003684]  GO
ddc:530
Wavelength widely tunable femtosecond sources can be implemented by optically filtering the leftmost/rightmost spectral lobes of a broadened spectrum due to self-phase modulation (SPM) dominated fiber-optic nonlinearities. We numerically and experimentally investigate the feasibility of implementing such a tunable source inside optical fibers with negative group-velocity dispersion (GVD). [...]
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2018-01-11
14:07
OpenAccess [PUBDB-2018-00503] Journal Article
; ; ; et al
Generation of three-dimensional versatile vortex linear light bullets (Invited Paper)
ddc:530
We generate and measure the versatile vortex linear light bullet, which combines a high-order Bessel beam and an Airy pulse. This three-dimensional optical wave packet propagates without distortion in any medium, while carrying an orbital angular momentum. [...]
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2017-12-08
16:44
OpenAccess [PUBDB-2017-13100] Conference Presentation (Invited)

High Energy Waveform Synthesis
8th International Symposium on Ultrafast Photonic Technologies, ISUPT, Meeting locationWinchester, United Kingdom, 10 Jul 2017 - 11 Jul 20172017-07-102017-07-11  GO
We review recent progress in high-energy optical waveform synthesis with optical parametric amplifiers pumped by high-energy Ti:Sapphire and Yb-based lasers from the visible to the far infrared..
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2017-08-16
13:41
[PUBDB-2017-09377] Contribution to a conference proceedings/Contribution to a book
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87-W, 1018-nm Yb-fiber ultrafast seeding source for cryogenic Yb:YLF amplifier
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2016. - ISBN 978-1-943580-11-8 - doi:10.1364/CLEO_SI.2016.SM4Q.5
CLEO: Science and Innovations, Meeting locationSan Jose, California, USA, 5 Jun 2016 - 10 Jun 20162016-06-052016-06-10
Washington, D.C. : OSA, SM4Q.5 (2016) [10.1364/CLEO_SI.2016.SM4Q.5]  GO
We demonstrate a compact Ytterbium-fiber MOPA system operating at 1018 nm, serving as powerful and compatible seed for cryogenically-cooled Yb:YLF amplifier. The output average power reaches 87 W with pulse energy of 4.9 µJ..
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2017-08-08
14:33
OpenAccess [PUBDB-2017-08913] Book/Report/Dissertation / PhD Thesis
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Power scaling of ultrafast mid-IR source enabled by high-power fiber laser technology
[DESY-THESIS-2017-034]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 118 pp. (2017) [10.3204/PUBDB-2017-08913] = Universität Hamburg, Dissertation, 2017  GO
In this thesis, we propose and demonstrate a novel approach to power scaling of DFG-based ultrafast mid-IR laser sources. The essence of this novel approach is the generation of a high-energy signal beam. [...]
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2017-08-08
14:24
[PUBDB-2017-08909] Contribution to a conference proceedings/Contribution to a book
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Towards high power and low noise mid-infrared DFG ultrafast source
CLEO: Science and Innovations in Proceedings Conference on Lasers and Electro-Optics
Conference on Lasers and Electro-Optics, CLEO 2017, Meeting locationSan Jose, California, USA, 14 May 2017 - 19 May 20172017-05-142017-05-19
Washington, D.C. : OSA, STu3J (2017) [10.1364/CLEO_SI.2017.STu3J.2] special issue: "CLEO: Science and Innovations 2017"  GO
We theoretically demonstrate that high power low noise mid-IR pulses can be obtained by using SPM-enabled pulses as the signal. Compared with Raman soliton pulse, SPM-enabled pulse exhibits high energy and low timing jitter..
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2017-08-08
12:10
[PUBDB-2017-08891] Contribution to a conference proceedings/Contribution to a book
; ; ; et al
Er-fiber laser enabled femtosecond source tunable from 1.3 to 1.7 $\mu$m for nonlinear optical microscopy
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2017. - ISBN 978-1-943580-27-9 - doi:10.1364/CLEO_SI.2017.SM3L.2
Conference on Lasers and Electro-Optics, CLEO, Meeting locationSan Jose, California, USA, 14 May 2017 - 19 May 20172017-05-142017-05-19
Washington, D.C. : OSA , 2 pp. (2017) [10.1364/CLEO_SI.2017.SM3L.2] special issue: "CLEO: Science and Innovations 2017"  GO
We demonstrate an Er-fiber laser based source that produces 100-200 fs pulses widely tunable from 1300 to 1700 nm, constituting an ideal driving source for three-photon excitation nonlinear optical microscopy..
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2017-06-12
11:40
OpenAccess [PUBDB-2017-04701] Journal Article
; ; ; et al
Er-Fiber laser enabled, energy scalable femtosecond source tunable from 1.3 to 1.7 $\mu$m
Optics express 25(14), 15760 - 15774 (2017) [10.1364/OE.25.015760]  GO
ddc:530
We demonstrate that energetic femtosecond pulses tunable from 1.3 to 1.7 µm can be achieved using self-phase modulation enabled spectral broadening followed by spectral lobe filtering. Based on a home-built 5-W Er-fiber laser system operating at 31-MHz repetition rate, we obtain femtosecond pulses that can be continuously tuned from 1.3 to 1.7 µm with >4.5 nJ pulse energy. [...]
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2017-03-15
11:11
OpenAccess [PUBDB-2017-01377] Journal Article
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Energetic Ultrafast Fiber Laser Scources Tunable in 1030-1215 nm for Deep Tissue Multi-Photon Microscopy
Optics express 25(6), 6822 - 6831 (2017) [10.1364/OE.25.006822]  GO
ddc:530
We demonstrate an energy scalable approach to implement ultrafast fiber laser sources suitable for deep tissue multi-photon microscopy imaging. Enabled by fiber-opticnonlinearities (dominated by self-phase modulation), these unique ultrafast sources produce nearly transform-limited pulses of 50-90 fs in duration with the center wavelength tunable inthe wavelength range of 1030-1215 nm. [...]
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2017-01-05
14:53
OpenAccess [PUBDB-2017-00199] Book/Report/Dissertation / PhD Thesis

Advanced ultrafast fiber laser sources enabled by fiber nonlinearities
[DESY-THESIS-2017-020]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 132 pp. (2017) [10.3204/PUBDB-2017-00199] = Universität Hamburg, Diss., 2016  GO
Development of high power/energy ultrafast fiber lasers for scientific research and industrial applications is one of the most exciting fields in ultrafast optics. This thesis demonstrated newmeans to improve two essential properties—which are indispensable for novel applications such as high-harmonic generation (HHG) and multiphoton microscopy (MPM)—of anultrafast fiber laser system: energy scaling capability and wavelength tunability. [...]
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