Intensity and polarization dependences of the supercontinuum generation in birefringent and highly nonlinear microstructured fibers

Proulx, Antoine; Ménard, Jean‐Michel; Hô, Nicolas; Laniel, Jacques M.; Vallée, Réal; Paré, Claude

doi:10.1364/oe.11.003338

Cited by 41 publications

(8 citation statements)

References 13 publications

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“…An extremely high sensitivity may unavoidably lead to pulse depolarization (e.g., through polarization modulation instability [72] or cross-phase modulation) and invalidate the principal-axis PM capability predicted from the S-GNLSE. To date, the principal-axis PM capability of strongly birefringent fibers has only been justified by the C-GNLSE [73] or experimentally validated [73–75] in a rather low nonlinearity ( L NL >5 mm) regime of SC generation.…”

Section: Toward a Practical Coherent Fiber Supercontinuum Lasermentioning

confidence: 99%

Nonlinear polarization dynamics in a weakly birefringent all-normal dispersion photonic crystal fiber: toward a practical coherent fiber supercontinuum laser

Liu

Liu³

et al. 2012

Opt. Express

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Dispersion-flattened dispersion-decreased all-normal dispersion (DFDD-ANDi) photonic crystal fibers have been identified as promising candidates for high-spectral-power coherent supercontinuum (SC) generation. However, the effects of the unintentional birefringence of the fibers on the SC generation have been ignored. This birefringence is widely present in nonlinear non-polarization maintaining fibers with a typical core size of 2 µm, presumably due to the structural symmetry breaks introduced in the fiber drawing process. We find that an intrinsic form-birefringence on the order of 10−5 profoundly affects the SC generation in a DFDD-ANDi photonic crystal fiber. Conventional simulations based on the scalar generalized nonlinear Schrödinger equation (GNLSE) fail to reproduce the prominent observed features of the SC generation in a short piece (9-cm) of this fiber. However, these features can be qualitatively or semi-quantitatively understood by the coupled GNLSE that takes into account the form-birefringence. The nonlinear polarization effects induced by the birefringence significantly distort the otherwise simple spectrotemporal field of the SC pulses. We therefore propose the fabrication of polarization-maintaining DFDD-ANDi fibers to avoid these adverse effects in pursuing a practical coherent fiber SC laser.

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Section: Toward a Practical Coherent Fiber Supercontinuum Lasermentioning

confidence: 99%

Nonlinear polarization dynamics in a weakly birefringent all-normal dispersion photonic crystal fiber: toward a practical coherent fiber supercontinuum laser

Liu

Liu³

et al. 2012

Opt. Express

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“…The development of highly nonlinear microstructured fibers (MFs), where the mode fields are tightly confined to an extremely small core and the dispersion can be tailored over a wide range, has enabled researchers to investigate soliton and soliton-related phenomena in new nonlinear regimes. One of the most common applications of MF is to supercontinuum generation [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], where in the femtosecond regime solitons dynamics plays an important role in the evolution of the spectrum.…”

Section: Introductionmentioning

confidence: 99%

Observation of soliton fission in microstructured fiber

et al. 2012

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Femtosecond pulse propagation at λ=802 nm; in microstructured fiber (MF) with zero-dispersion wavelength at 780 nm is studied experimentally and numerically. The temporal and spectral distributions of the femtosecond pulse in MF are demonstrated by using a grating-eliminated no-nonsense observation of ultrafast incident laser light e-fields technique. Soliton fission is directly observed in the experimental results. The simulation of soliton evolution with the propagation distance in time and frequency domain is conducted.

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“…Phase matched four-photon parametric mixing [11][12] associated with Raman scattering is the basic mechanism for such spectral broadening, which can be observed even in the normal group velocity dispersion (GVD) regime. Several experiments have demonstrated that the early stage of SC generation is strongly dependent upon the state of polarization of the pumping pulses [13][14][15][16]. It is therefore of particular interest to explore the polarization dynamics of parametric scattering in the holey fibers [17].…”

Section: Introductionmentioning

confidence: 99%

Frequency tunable polarization and intermodal modulation instability in high birefringence holey fiber

Tonello¹,

Pitois²,

Wabnitz³

et al. 2006

Opt. Express

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We present an experimental analysis of polarization and intermodal noise-seeded parametric amplification, in which dispersion is phase matched by group velocity mismatch between either polarization or spatial modes in birefringent holey fiber with elliptical core composed of a triple defect. By injecting quasi-CW intense linearly polarized pump pulses either parallel or at 45 degrees with respect to the fiber polarization axes, we observed the simultaneous generation of polarization or intermodal modulation instability sidebands. Furthermore, by shifting the pump wavelength from 532 to 625 nm, we observed a shift of polarization sidebands from 3 to 8 THz, whereas intermodal sidebands shifted from 33 to 63 THz. These observations are in excellent agreement with the experimental characterization and theoretical estimates of phase and group velocities for the respective fiber modes.

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Intensity and polarization dependences of the supercontinuum generation in birefringent and highly nonlinear microstructured fibers

Cited by 41 publications

References 13 publications

Nonlinear polarization dynamics in a weakly birefringent all-normal dispersion photonic crystal fiber: toward a practical coherent fiber supercontinuum laser

Nonlinear polarization dynamics in a weakly birefringent all-normal dispersion photonic crystal fiber: toward a practical coherent fiber supercontinuum laser

Observation of soliton fission in microstructured fiber

Frequency tunable polarization and intermodal modulation instability in high birefringence holey fiber

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