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Generation of Cerenkov radiation at 850 nm in higher-order-mode fiber.

Cheng J, Lee JH, Wang K, Xu C, Jespersen KG, Garmund M, Grüner-Nielsen L, Jakobsen D - Opt Express (2011)

Bottom Line: We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber.The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm.The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.

View Article: PubMed Central - PubMed

Affiliation: School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. jc875@cornell.edu

ABSTRACT
We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber. The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm. Cerenkov radiation with 3 nJ pulse energy is generated in this module, exhibiting 60% energy conversion efficiency from the input. The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.

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Measured (a) and simulated (b) second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy.
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g004: Measured (a) and simulated (b) second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy.

Mentions: At 5 nJ input pulse energy, Cerenkov radiation with 3 nJ pulse energy and 50 nm spectral bandwidth, which translates to a spectral density of 4.8 mW/nm at 80 MHz repetition rate, can be generated without exhibiting super-continuum-like spectral features. The measured and simulated second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy is shown in Fig. 4Fig. 4


Generation of Cerenkov radiation at 850 nm in higher-order-mode fiber.

Cheng J, Lee JH, Wang K, Xu C, Jespersen KG, Garmund M, Grüner-Nielsen L, Jakobsen D - Opt Express (2011)

Measured (a) and simulated (b) second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3368332&req=5

g004: Measured (a) and simulated (b) second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy.
Mentions: At 5 nJ input pulse energy, Cerenkov radiation with 3 nJ pulse energy and 50 nm spectral bandwidth, which translates to a spectral density of 4.8 mW/nm at 80 MHz repetition rate, can be generated without exhibiting super-continuum-like spectral features. The measured and simulated second-order intensity autocorrelation trace of the Cerenkov radiation at 5 nJ input pulse energy is shown in Fig. 4Fig. 4

Bottom Line: We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber.The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm.The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.

View Article: PubMed Central - PubMed

Affiliation: School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. jc875@cornell.edu

ABSTRACT
We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber. The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm. Cerenkov radiation with 3 nJ pulse energy is generated in this module, exhibiting 60% energy conversion efficiency from the input. The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.

Show MeSH