Jesper Lægsgaard

Jesper Lægsgaard

Associate Professor

DTU FOTONIK
Department of Photonics Engineering

Fiber Optics, Devices and Non-linear Effects

Technical University of Denmark

Ørsteds Plads

Building 343, room 128

2800 Kgs. Lyngby

Ph.
Fax +45 45 93 65 81
E-mail jlag@fotonik.dtu.dk

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2017
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Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths

Muliar, Olena ; Usuga Castaneda, Mario A. ; Michieletto, Mattia ; Kristensen, Torben ; Alkeskjold, Thomas T. ; Rottwitt, Karsten ; Lægsgaard, Jesper
in journal: Optics Express (ISSN: 1094-4087) (DOI: http://dx.doi.org/10.1364/OE.25.005521 ), vol: 25, issue: 5, pages: 5521-5535, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1364/OE.25.005521

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High precision Cross-correlated imaging in Few-mode fibers

Muliar, Olena ; Usuga Castaneda, Mario A. ; Kristensen, Torben ; Alkeskjold, Thomas Tanggaard ; Rottwitt, Karsten ; Lægsgaard, Jesper
part of: Proceedings of SPIE (ISBN: 9781510607019), 2017, SPIE - International Society for Optical Engineering,
Presented at:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems V, 2016, San Francisco, CA

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1117/12.2250532

2016
 

Progress in Cherenkov femtosecond fiber lasers

Liu, Xiaomin ; Svane, Ask Sebastian ; Lægsgaard, Jesper ; Tu, Haohua ; Boppart, Stephen A. ; Turchinovich, Dmitry
in journal: Journal of Physics D: Applied Physics (ISSN: 0022-3727) (DOI: http://dx.doi.org/10.1088/0022-3727/49/2/023001), vol: 49, issue: 2, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1088/0022-3727/49/2/023001

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Optimizing Yb concentration of fiber amplifiers in the presence of transverse modal instabilities and photodarkening

Lægsgaard, Jesper
in journal: Applied Optics (ISSN: 1559-128X) (DOI: http://dx.doi.org/10.1364/AO.55.001966), vol: 55, issue: 8, pages: 1966-1970, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/AO.55.001966

 

Hollow-core fibers for high power pulse delivery

Michieletto, Mattia ; Lyngsø, Jens K. ; Jakobsen, Christian ; Lægsgaard, Jesper ; Bang, Ole ; Alkeskjold, Thomas Tanggaard
in journal: Optics Express (ISSN: 1094-4087) (DOI: http://dx.doi.org/10.1364/OE.24.007103), vol: 24, issue: 7, pages: 7103-7119, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/OE.24.007103

 

High-power picosecond pulse delivery through hollow core photonic band gap fibers

Michieletto, Mattia ; Johansen, Mette Marie ; Lyngsø, Jens Kristian ; Lægsgaard, Jesper ; Bang, Ole ; Alkeskjold, Thomas T.
part of: Proceedings of SPIE, 2016, SPIE - International Society for Optical Engineering,
Presented at:
Fiber Lasers XIII: Technology, Systems, and Applications, 2016, San Francisco, California

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1117/12.2211324

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Static thermo-optic instability in double-pass fiber amplifiers

Lægsgaard, Jesper
in journal: Optics Express (ISSN: 1094-4087) (DOI: http://dx.doi.org/10.1364/OE.24.013429), vol: 24, issue: 12, pages: 13429-13443, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/OE.24.013429

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85 μm core rod fiber amplifier delivering 350 W/m

Johansen, Mette Marie ; Michieletto, Mattia ; Kristensen, Torben ; Alkeskjold, Thomas Tanggaard ; Lægsgaard, Jesper
part of: Proceedings of SPIE, 2016, SPIE - International Society for Optical Engineering,
Presented at:
Fiber Lasers XIII: Technology, Systems, and Applications, 2016, San Francisco, California

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1117/12.2213274

 

Stain-free histopathology by programmable supercontinuum pulses

Tu, Haohua ; Liu, Yuan ; Turchinovich, Dmitry ; Marjanovic, Marina ; Lyngsøe, Jens Kristian ; Lægsgaard, Jesper ; Chaney, Eric J. ; Zhao, Youbo ; You, Sixian ; Wilson, William L. ; Xu, Bingwei ; Dantus, Marcos ; Boppart, Stephen A.
in journal: Nature Photonics (ISSN: 1749-4885) (DOI: http://dx.doi.org/10.1038/nphoton.2016.94), vol: 10, issue: 8, pages: 534-540, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1038/nphoton.2016.94

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Hollow core fibers for high power laser applications

Michieletto, Mattia ; Bang, Ole (Main supervisor) ; Lyngsøe, Jens Kristian (Supervisor) ; Lægsgaard, Jesper (Supervisor)
Technical University of Denmark (DTU), pages: 110

Type: Ph.D. thesis

Status: Published     |    Year: 2016