Journal ArticleDOI
Supercontinuum generation by stimulated Raman scattering and parametric four-wave mixing in photonic crystal fibers
Stéphane Coen,Alvin Hing Lun Chau,Rainer Leonhardt,John D. Harvey,Jonathan Knight,William J. Wadsworth,Philip St. J. Russell +6 more
TLDR
In this paper, an ultrabroadband octave-spanning white-light continuum is generated with 60-ps pump pulses of subkilowatt peak power, and the primary mechanism of spectral broadening is identified as the combined action of stimulated Raman scattering and parametric four-wave mixing.Abstract:
Supercontinuum generation is investigated experimentally and numerically in a highly nonlinear index-guiding photonic crystal optical fiber in a regime in which self-phase modulation of the pump wave makes a negligible contribution to spectral broadening. An ultrabroadband octave-spanning white-light continuum is generated with 60-ps pump pulses of subkilowatt peak power. The primary mechanism of spectral broadening is identified as the combined action of stimulated Raman scattering and parametric four-wave mixing. The observation of a strong anti-Stokes Raman component reveals the importance of the coupling between stimulated Raman scattering and parametric four-wave mixing in highly nonlinear photonic crystal fibers and also indicates that non-phase-matched processes contribute to the continuum. Additionally, the pump input polarization affects the generated continuum through the influence of polarization modulational instability. The experimental results are in good agreement with detailed numerical simulations. These findings demonstrate the importance of index-guiding photonic crystal fibers for the design of picosecond and nanosecond supercontinuum light sources.read more
Citations
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Journal ArticleDOI
Supercontinuum generation in photonic crystal fiber
TL;DR: In this paper, a review of numerical and experimental studies of supercontinuum generation in photonic crystal fiber is presented over the full range of experimentally reported parameters, from the femtosecond to the continuous-wave regime.
Journal ArticleDOI
Photonic-Crystal Fibers
TL;DR: The history, fabrication, theory, numerical modeling, optical properties, guidance mechanisms, and applications of photonic-crystal fibers are reviewed.
Journal ArticleDOI
Transformation and control of ultra-short pulses in dispersion-engineered photonic crystal fibres
W.H. Reeves,Dmitry V. Skryabin,Fabio Biancalana,Jonathan Knight,P. St. J. Russell,Fiorenzo G. Omenetto,Anatoly Efimov,Antoinette J. Taylor +7 more
TL;DR: This work reports on spectral broadening of 100-fs pulses in PCFs with anomalously flat CD profiles, showing how, through appropriate choice of CD, nonlinearities can be efficiently harnessed to generate laser light at new wavelengths.
Journal ArticleDOI
Description of ultrashort pulse propagation in multimode optical fibers
Francesco Poletti,Peter Horak +1 more
TL;DR: In this article, an extended version of the generalized nonlinear Schrodinger equation is presented and discussed for multimode optical fibers and waveguides including polarization effects, high-order dispersion, Kerr and Raman nonlinearities, self-steepening effects, as well as wavelength-dependent mode coupling and nonlinear coefficients.
Journal ArticleDOI
Supercontinuum generation in photonic crystal fibers and optical fiber tapers: a novel light source
William J. Wadsworth,A. Ortigosa-Blanch,Jonathan Knight,Tim A. Birks,T.-P. Martin Man,Phillip St. J. Russell +5 more
TL;DR: In this paper, the femtosecond pulses from an unamplified Ti:sapphire laser with energies up to 4 nJ were used, and the resultant spectra from several photonic crystal fibers and taper structures were compared and analyzed.
References
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Journal ArticleDOI
All-silica single-mode optical fiber with photonic crystal cladding
TL;DR: The fabrication of a new type of optical waveguide: the photonic crystal fiber that supports a single robust low-loss guided mode over a very broad spectral range of at least 458-1550 nm.
Journal ArticleDOI
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Journal ArticleDOI
Carrier-envelope phase control of femtosecond mode-locked lasers and direct optical frequency synthesis
David J. Jones,Scott A. Diddams,Jinendra Kumar Ranka,Andrew John Stentz,Robert S. Windeler,John L. Hall,Steven T. Cundiff +6 more
TL;DR: The carrier-envelope phase of the pulses emitted by a femtosecond mode-locked laser is stabilized by using the powerful tools of frequency-domain laser stabilization to perform absolute optical frequency measurements that were directly referenced to a stable microwave clock.
Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
TL;DR: In this article, the authors demonstrate experimentally that air-silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths, and exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared.
Journal ArticleDOI
Photonic Band Gap Guidance in Optical Fibers
TL;DR: A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal.