Design of double-clad erbium-doped holey fiber amplifier

Carlone, G.; D’Orazio, A.; Sario, M. De; Mescia, Luciano; Petruzzelli, V.; Prudenzano, Francesco

doi:10.1016/j.jnoncrysol.2005.04.025

Cited by 17 publications

(8 citation statements)

References 20 publications

(31 reference statements)

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“…A first validation of the numerical code had been performed in the case of the passive conventional fiber with a grating inscribed into the core [15][16][17] and for modeling the fiber laser and amplifier without grating [27,28]. As further model validation, the code has been applied in the case of a Yb 3 -doped cladding-pumped fiber laser with LPG pump coupling [18], [24].…”

Section: Numerical Resultsmentioning

confidence: 99%

“…where N Yb is the ytterbium ion concentration; 1∕τ 21 is the spontaneous emission rate from 2 F 5∕2 energy level to the 2 F 7∕2 one; W GSA P and W GSA S are the ground state absorption (GSA) rates at pump and laser wavelength, respectively; W E P and W E S are the emission (E) rates at pump and laser wavelength, respectively [25], [27,28]. Γ ν is the overlapping coefficient of ν-th propagating mode at the wavelength λ p (ν ≥ 1) and of the fundamental core mode at the wavelength λ s (ν 1), calculated as…”

Section: Theorymentioning

confidence: 99%

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Optimization of pump absorption in MOF lasers via multi-long-period gratings: design strategies

et al. 2012

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Different strategies for designing optical couplers, optimized to enhance the pump absorption in the rare-earth-doped core of microstructured fiber lasers, are illustrated. Three kinds/configurations of optical couplers have been designed and compared as examples of the different design strategies which can be followed. Their effectiveness to enhance the performance of an ytterbium-doped, double cladding, microstructured optical fiber laser has been accurately simulated. They consist of a suitable cascade of multiple long-period gratings (MLPGs) inscribed in the fiber core region. The characteristics of the MLPG couplers have been simulated via a homemade computer code based on both rate equations and an extended coupled mode theory. The proposed MLPG couplers seem particularly useful in the case of low rare-earth concentration but, even for a middle-high ytterbium concentration, as N(Yb)=5×10(25) ions/m(3), the slope efficiency S can be increased up to 20%, depending on the fiber length.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Optimization of pump absorption in MOF lasers via multi-long-period gratings: design strategies

et al. 2012

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“…The chalcogenide glass allows light propagation for wavelengths up to λ = 15 μm; therefore propagation at λ s = 4384 nm occurs without drawbacks. The PCF technology is considered instead of the conventional fiber fabrication process in order to maximize the mode area of the pump [18]. This allows to reduce the thermal load density, avoiding nonlinear effects in the chalcogenide glass.…”

Section: Amplifier Modelingmentioning

confidence: 99%

Dysprosium-Doped Chalcogenide Master Oscillator Power Amplifier (MOPA) for Mid-IR Emission

Falconi

Palma

Starecki

et al. 2017

J. Lightwave Technol.

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International audienceThe paper describes the design of a medium infrared fiber laser based on a dysprosium-doped chalcogenide glass Dy3+ : Ga5Ge20Sb10S65. To obtain a high efficiency, the fiber laser is followed by an optical amplifier. The optimized optical source exploits a master oscillator power amplifier (MOPA) configuration. The MOPA pump and signal wavelengths are 1709 and 4384 nm, respectively. Spectroscopic parameters measured on preliminary samples of chalcogenide glasses are taken into account to fulfill realistic simulations. The MOPA emission is maximized by applying a particle swarm optimization approach. For the dysprosium concentration 6 x 10(25) ions/m(3) and the input pump power of 3 W, an output power of 637 mW can be obtained for optical fiber losses close to 1 dB m(-1). The optimized MOPA configuration allows a laser efficiency larger than 21%. By considering the high beam quality provided by photonic crystal fibers, it is a good candidate for medium infrared light generation whose main applications include, but are not limited to, molecular spectroscopy and environmental monitoring

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“…More recently, a number of prototypal active devices, based on photonic crystals, were designed [8], constructed [9,10] and tested [11] even for non-conventional microstructured optical fibers [12,13].…”

Section: Introductionmentioning

confidence: 99%

Active WDM Filter on Dilute Nitride Quantum Well Photonic Band Gap Waveguide

Calò¹,

Alexandropoulos²,

Petruzzelli³

2012

PIER Letters

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A defective Photonic Band Gap device based on dilute nitrides is proposed as a high performance active wavelength filter for wavelength division multiplexing applications. The analyzed structure is made of GaInNAs-GaInAs multi quantum well ridge waveguides in which a geometrical defect in the periodic lattice induces selective transmission spectral regions centered at different wavelengths inside the photonic band gap. The multi-channel filter performances are evaluated as a function of both the defect length and the injected current value. The analysis is performed by using proprietary codes, based on the Bidirectional Beam Propagation Method with the Method of Lines introducing the rate equations. Highly selective 11-channel active filter with minimum value of the bandwidth at half-height ∆λ = 0.105 nm with gain G = 16.51 dB has been assessed.

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Design of double-clad erbium-doped holey fiber amplifier

Cited by 17 publications

References 20 publications

Optimization of pump absorption in MOF lasers via multi-long-period gratings: design strategies

Optimization of pump absorption in MOF lasers via multi-long-period gratings: design strategies

Dysprosium-Doped Chalcogenide Master Oscillator Power Amplifier (MOPA) for Mid-IR Emission

Active WDM Filter on Dilute Nitride Quantum Well Photonic Band Gap Waveguide

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