Single-mode analysis of Yb-doped double-cladding distributed spectral filtering photonic crystal fibers.
Enrico Coscelli,Federica Poli,Thomas Tanggaard Alkeskjold,D. Passaro,Annamaria Cucinotta,Lasse Leick,Jes Broeng,Stefano Selleri +7 more
TLDR
Hybrid large mode area Ytterbium-doped double-cladding photonic crystal fibers with anti-symmetric high refractive index inclusions provide efficient amplified spontaneous emission spectral filtering.Abstract:
Hybrid large mode area Ytterbium-doped double-cladding photonic crystal fibers with anti-symmetric high refractive index inclusions provide efficient amplified spontaneous emission spectral filtering. Their performances have been analyzed by numerical simulations and experimental measurements. In particular, the fiber single-mode behaviour has been studied, by taking into account the fundamental and the first higher-order mode. Two approaches, the core down-doping and the reduction of the air-hole diameter in the inner cladding, have been successfully applied to reduce the higher-order mode content, regardless of the bending of the doped fiber, without significantly affecting its spectral filtering properties.read more
Citations
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Journal ArticleDOI
Fabrication and laser behaviors of Yb3+ doped silica large mode area photonic crystal fiber prepared by sol–gel method
TL;DR: Yb3+, Al3+ co-doped silica large mode area photonic crystal fiber (LMA PCF) has been prepared by sol-gel method combined with stack-capillary-draw technique.
Journal ArticleDOI
Scalable waveguide design for three-level operation in Neodymium doped fiber laser
Paul H. Pax,Victor V. Khitrov,Derrek R. Drachenberg,Graham S. Allen,Benjamin G. Ward,Mark Dubinskii,Michael J. Messerly,Jay W. Dawson +7 more
TL;DR: To suppress the stronger four-level 4F3/2→4I11/2 transition, a waveguide that provides spectral filtering distributed along the length of the fiber is developed, based on an all-solid micro-structured optical fiber design, with resonant inclusions creating a leakage path to the cladding.
Journal ArticleDOI
Solid-core photonic bandgap fibers for cladding-pumped Raman amplification.
TL;DR: Cladding-pumped solid-core photonic bandgap Raman fiber amplifiers are analyzed theoretically as possible candidates for power scaling and shown to exhibit low loss and large mode area in realistic coiling configurations.
Journal ArticleDOI
Thermally resilient Tm-doped large mode area photonic crystal fiber with symmetry-free cladding.
TL;DR: The design of a Tm-doped photonic crystal fiber with ∼ 80 μm core diameter and robust single-mode guiding and the possibility to obtain wide-band single- mode propagation and effective area exceeding 2500 μm(2) under a heat load of over 300 W/m is demonstrated.
Journal ArticleDOI
Intermodal and cross-polarization four-wave mixing in large-core hybrid photonic crystal fibers.
TL;DR: Good agreement between calculations and experimental observations is obtained and intermodal and birefringence assisted intramodal phase matching is observed in large mode area hybrid photonic crystal fibers.
References
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Journal ArticleDOI
Hybrid photonic crystal fiber.
TL;DR: A hybrid photonic crystal fiber in which a guided mode is confined simultaneously by modified total internal reflection from an array of air holes and antiresonant reflection from a line of high-index inclusions is presented.
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High-power Yb-doped photonic bandgap fiber amplifier at 1150-1200 nm.
Akira Shirakawa,Hiroki Maruyama,Ken-ichi Ueda,Christina B. Olausson,Jens K. Lyngsø,Jes Broeng +5 more
TL;DR: To the authors' knowledge, these are the highest output powers generating from active photonic bandgap fibers, as well as from ytterbium-doped fiber lasers at these wavelengths.
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Ytterbium-doped solid core photonic bandgap fiber for laser operation around 980nm
TL;DR: In this article, the design and characterization of an ytterbium-doped solid core photonic bandgap fiber laser operating at 977nm was presented, and a slope efficiency of η∼65% was obtained for a 99% −4% laser cavity.
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Amplification properties of Er/sup 3+/-doped photonic crystal fibers
TL;DR: In this paper, the amplification properties of different photonic crystal fibers have been studied by means of a full vector finite-element modal formulation combined with a population and propagation rate equation solver.
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High Peak Power Pulse Amplification in Large-Core Yb-Doped Fiber Amplifiers
TL;DR: In this article, it was shown that for core sizes as large as 80 mum, a good output beam quality of M2 ~ 1.3 can be maintained, which corresponds to the largest ever demonstrated mode area (2750 mum2) of a conventional LMA fiber with nearly diffraction-limited output.