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10 items by relevance
1 Conference paper

Photonic crystal fibers

Lægsgaard, Jesper; Hansen, K P; Nielsen, M D; Hansen, Theis Peter; Riishede, Jesper; Hougaard, Kristian G.; et al. (6 more)

Proceedings of the 2003 Sbmo/ieee Mtt-s International Microwave and Optoelectronics Conference, 2003. Imoc 2003 — 2003, Volume 1, pp. 259,260,261,262,263,264

Photonic crystal fibers having a complex microstructure in the transverse plane constitute a new and promising class of optical fibers. Such fibers can either guide light through total internal reflection or the photonic bandgap effect, In this paper, we review the different types and applications

Year: 2003

Language: English

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2 Conference paper

Group-velocity matched nonlinear photonic crystal fibers

Bache, Morten; Lægsgaard, Jesper; Bang, Ole

Proceedings Ecoc — 2006, pp. 139-140

A quadratic nonlinear index-guiding silica PCF is optimized for efficient second-harmonic generation through dispersion calculations. Zero group-velocity mismatch is possible for any pump wavelength above 780 nm. Very high conversion efficiencies and bandwidths are found.

Year: 2006

Language: English

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3 Journal article

Tailoring the dispersion properties of photonic crystal fibers

Lægsgaard, Jesper; Roberts, P.J.; Bache, Morten

Optical and Quantum Electronics — 2007, Volume 39, Issue 12-13, pp. 995-1008

Photonic crystal fibers (PCFs) have had a substantial impact on nonlinear fiber optics and shortpulsed fiber laser systems due to their novel dispersion properties. The large normal or anomalous waveguide dispersion available in such fibers opens up a number of new opportunities not accessible

Year: 2007

Language: English

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4 Conference paper

Tailoring the dispersion properties of photonic crystal fibers

Lægsgaard, Jesper; Roberts, John; Bache, Morten

International Conference on Materials for Advanced Technologies — 2007

Year: 2007

Language: English

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5 Conference paper

Monolithic Femtosecond Yb-fiber Lasers with Photonic Crystal Fibers

Turchinovich, Dmitry; Liu, Xiaomin; Lægsgaard, Jesper

International Conference on Advanced Laser Technologies — 2008

Year: 2008

Language: English

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6 Conference paper

Monolithic femtosecond Yb-fiber laser with photonic crystal fibers

Liu, Xiaomin; Lægsgaard, Jesper; Turchinovich, Dmitry

We demonstrate a monolithic stable SESAM-modelocked self-starting Yb-fiber laser. A novel PM all-solid photonic bandgap fiber is used for intra-cavity of dispersion management. The ex-cavity final pulse compression is performed in a spliced-on PM hollow-core photonic crystal fiber. The laser

Year: 2009

Language: English

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7 Conference paper

Dispersion properties of photonic crystal fibers-issues and opportunities

Lægsgaard, Jesper; Libori, Stig E. Barkou; Hougaard, Kristian G.; Riishede, Jesper; Alkeskjold, Thomas Tanggaard; Sørensen, Niels Thorkild; et al. (5 more)

Mrs Fall — 2003

Year: 2003

Language: English

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8 Conference paper

Nonlinear spatial mode imaging of hybrid photonic crystal fibers

Petersen, Sidsel Rübner; Alkeskjold, Thomas Tanggaard; Laurila, Marko; Andersen, T. V.; Lægsgaard, Jesper

Proceedings of Spie - the International Society for Optical Engineering — 2013, Volume 8601, pp. 86010M-86010M-9

Degenerate spontaneous four wave mixing is studied for the rst time in a large mode area hybrid photonic crystal ber, where light con nement is achieved by combined index- and bandgap guiding. Four wave mixing products are generated on the edges of the bandgaps, which is veri ed by numerical

Year: 2013

Language: English

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9 Conference paper

Zero-velocity solitons in high-index photonic crystal fibers

Lægsgaard, Jesper

Year: 2010

Language: English

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10 Conference paper

Photonic crystal fibers: fundamental properties and applications within sensors

Jensen, Jesper Bo Damm; Riishede, Jesper; Broeng, Jes; Lægsgaard, Jesper; Alkeskjold, Thomas Tanggaard; Sørensen, Niels Thorkild; et al. (4 more)

Ieee Sensors — 2003, Volume 1, pp. 269,270,271,272,273,274,275,276,277,278

Since the first experimental demonstration of a photonic crystal fiber (PCF) in 1996 by Knight et al. the optical properties and the fabrication of such fibers have attracted significant attention. The fiber structure with a lattice of air holes running along the length of the fiber provides

Year: 2003

Language: English

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