Amplification properties of Er/sub 3+/ -doped photonic crystal fibers

Cucinotta, Annamaria; Poli, Federica; Selleri, Stefano; Vincetti, Luca; Zoboli, M.

doi:10.1109/jlt.2003.809576

Cited by 77 publications

(36 citation statements)

References 25 publications

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“…An essential advantage is enhanced suppression in the stop bands, improving the gain-shaping properties. The improvement can be quantified numerically by the overlap integral of the fundamental mode with the doped core region, Γ [12]. Γ is calculated with a full-vector modal solver based on the finite element method [13], which is used for all numerical computations presented in this paper.…”

Section: Spectral and Spatial Filtermentioning

confidence: 99%

Hybrid Ytterbium-doped large-mode-area photonic crystal fiber amplifier for long wavelengths

Petersen¹,

Alkeskjold²,

Poli³

et al. 2012

Opt. Express

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A large-mode-area Ytterbium-doped photonic crystal fiber amplifier with build-in gain shaping is presented. The fiber cladding consists of a hexagonal lattice of air holes, where three rows are replaced with circular high-index inclusions. Seven missing air holes define the large-mode-area core. Light confinement is achieved by combined index and bandgap guiding, which allows for single-mode operation and gain shaping through distributed spectral filtering of amplified spontaneous emission. The fiber properties are ideal for amplification in the long wavelength regime of the Ytterbium gain spectrum above 1100 nm, and red shifting of the maximum gain to 1130 nm is demonstrated.

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Section: Spectral and Spatial Filtermentioning

confidence: 99%

Hybrid Ytterbium-doped large-mode-area photonic crystal fiber amplifier for long wavelengths

Petersen¹,

Alkeskjold²,

Poli³

et al. 2012

Opt. Express

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“…Details of the model equations can be found in [15]. This spatial model uses the field distributions computed through the FEM to evaluate the intensities of the pump and of each propagating mode at the signal wavelength.…”

Section: B Propagation Analysismentioning

confidence: 99%

Single-Mode Regime in Large-Mode-Area Rare-Earth-Doped Rod-Type PCFs

Poli

Cucinotta

Passaro

et al. 2009

IEEE J. Select. Topics Quantum Electron.

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Abstract-In this paper, large-mode-area, double-cladding, rare-earth-doped photonic crystal fibers are investigated in order to understand how the refractive index distribution and the mode competition given by the amplification can assure singlemode propagation. Fibers with different core diameters, i.e., 35, 60, and 100 µm, are considered. The analysis of the mode effective index, overlap, effective area, gain, and power evolution along the doped fiber provides clear guidelines on the fiber physical characteristics to be matched in the fabrication process to obtain a truly or effectively single-mode output beam.

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“…Similarly, other dopants, such as rare earths, can be added to air-silica structured fibers, creating active devices. The concept of a distributed-feedback fiber laser produced in a photonic crystal fiber was theoretically analyzed by Søndergaard. 42 Amplification properties of rareearth doped photonic crystal fiber were also examined, 43 demonstrating improvements beyond that of conventional step-index fibers. The possibility of exploiting band-gap properties of the crystal structure and the laser characteristics, including potentially reduced amplified spontaneous emission, is of great fundamental interest.…”

Section: Introductionmentioning

confidence: 99%

A dual wavelength distributed-feedback fiber laser

Groothoff¹,

Martelli²,

Canning³

2008

Journal of Applied Physics

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An approach to accessing air holes in a structured optical fiber with a distributed-feedback ͑DFB͒ laser based on higher order mode lasing is proposed and demonstrated. A narrow linewidth DFB fiber laser is fabricated in rare-earth-doped structured optical fiber. A higher order mode is shown to lase. Dual laser operation in both fundamental and higher order modes is also achieved. Numerical simulation of the mode profiles within the fiber using the adjustable boundary conditions-Fourier decomposition method supports the experimental results. Laser performance for each mode is characterized including imaging the emission of pump and lasing mode intensity profiles.

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Amplification properties of Er/sub 3+/ -doped photonic crystal fibers

Cited by 77 publications

References 25 publications

Hybrid Ytterbium-doped large-mode-area photonic crystal fiber amplifier for long wavelengths

Hybrid Ytterbium-doped large-mode-area photonic crystal fiber amplifier for long wavelengths

Single-Mode Regime in Large-Mode-Area Rare-Earth-Doped Rod-Type PCFs

A dual wavelength distributed-feedback fiber laser

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