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  Enhanced two−photon excitation through optical fiber by single−mode propagation in a large core

Helmchen, F., Tank, D. W., & Denk, W. (2002). Enhanced two−photon excitation through optical fiber by single−mode propagation in a large core. Applied Optics, 41(15), 2930-2934. doi:10.1364/AO.41.002930.

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Genre: Journal Article
Alternative Title : Enhanced two−photon excitation through optical fiber by single−mode propagation in a large core

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 Creators:
Helmchen, Fritjof1, Author           
Tank, David W., Author
Denk, Winfried2, Author           
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1Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society, ou_1497701              
2Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497699              

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 Abstract: Multiphoton excitation through optical fibers is limited by pulse broadening caused by self−phase modulation. We show that for short fiber lengths (approximately 2 m) two−photon excitation efficiency at the fiber output can be substantially improved by single−mode propagation in a large−area multimode fiber (10− μm core diameter) instead of a standard 5.5− μm core fiber. Measurements and numerical simulations of postfiber spectra and pulse widths demonstrate that the increase in efficiency is due to a reduction of nonlinear pulse broadening. Single−mode propagation in a large−core fiber is thus suitable for multiphoton applications for which pulse recompression is not possible at the fiber end

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Language(s): eng - English
 Dates: 2002-05-20
 Publication Status: Issued
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 Rev. Type: Peer
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Title: Applied Optics
  Abbreviation : Appl. Opt.
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: - Volume / Issue: 41 (15) Sequence Number: - Start / End Page: 2930 - 2934 Identifier: ISSN: 0003-6935
CoNE: https://pure.mpg.de/cone/journals/resource/991042728167604