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Supercontinuum
About: Supercontinuum is a research topic. Over the lifetime, 7071 publications have been published within this topic receiving 127671 citations.
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TL;DR: In this article, the authors reported controlled hole expansion in photonic crystal fibres (PCFs) by heating the fibre while the holes were pressurised. This was done by post-processing an existing fibre, not during fibre fabrication.
Abstract: We report controlled hole expansion in photonic crystal fibres (PCFs) by heating the fibre while the holes were pressurised. This was done by post-processing an existing fibre, not during fibre fabrication. Small holes in an endlessly single-mode (ESM) PCF were inflated to become large holes. The large-hole PCF was then tapered to produce a “cobweb” PCF with a small highly-nonlinear core, interfaced to the ESM PCF at both ends by gradual transitions. The loss was less than 0.4 dB in the complete structure, which was used to demonstrate supercontinuum generation when pumped with a fs Ti:sapphire laser.
113 citations
Book•
23 Feb 2006
TL;DR: Alfano's The Supercontinuum Laser Source as mentioned in this paper is a seminal work on self-focusing and cross-phase modulation of ultrashort pulses, which has been applied in many applications, e.g., in optical coherence tomography.
Abstract: Alfano's The Supercontinuum Laser Source 2/e Contents New Preface 1989 Edition Preface Contributors Part I: Fundamentals Chapter 1 Theory of Self Phase Modulation and Spectral Boradening Y.R. Shen and Guo-Zhen Yang Chapter 2 Supercontinuum Generation and Condensed Matter Q.Z. Wang, P.P. Ho, and R.R. Alfano Chapter 3 Ultrashort Pulse Propagation in Nonlinear Dispersive Fibers Govind P. Agrawal Chapter 4 Cross-Phase Modulation: A New Technique for Controlling the Spectral, Temporal, and Spatial Properties of Ultrashort Pulses P.L. Baldeck, P.P. Ho, and R.R. Alfano Chapter 5 Simple Models of Self-Phase and Induced-Phase Modulation Jamal T. Manassah Chapter 6 Self-steepening of Optical Pulses B.R. Suydam Chapter 7 Self-focusing and Continuum Generation in Gases Paul B. Corkum and Claude Rolland Chapter 8 Utilization of UV and IR Supercontinua in Gas-Phase Subpicosecond Kinetic Spectroscopy J.H. Glownia, J. Misewich, and P.P. Sorokin Chapter 9 Applications of Supercontinuum: Present and Future R.Dorsinville, P.P. Ho, Jamal T. Manassah, and R.R. Alfano Chapter 10 Pulse Compression in Single-Mode Fibers-Picoseconds to Femtoseconds A.M. Johnson and C.V. Shank Index Part II: New Developments Chapter 11 Coherence Properties of the Supercontinuum Source I. Zeylikovich and R.R. Alfano Chapter 12 Supercontinuum Generation in Materials (Solids, Liquids, Gases, Air) Summary Updated References Chapter 13 Supercontinuum generation in microstructure fiber Summary UpdatedReferences Chapter 14 Supercontinuum in wavelength division multiplex telecommunication Summary Updated References Chapter 15 Femtosecond Pump - Supercontinuum Probe for Applications in Semiconductors, Biology and Chemistry Summary Updated References Chapter 16 Supercontinuum in optical coherence tomography Summary Updated References Chapter 17 Supercontinuum in fs carrier-envelope phase stabilization Summary Updated References Chapter 18 Supercontinuum in ultrafast pulse compression Summary Updated References Chapter 19 Supercontinuum in time and frequency metrology Summary Updated References Chapter 20 Supercontinuum in Atmospheric Science Summary Updated References Chapter 21 Coherence of the Supercontinuum Summary Updated References
113 citations
TL;DR: In this article, an octave-spanning coherent supercontinuum was generated in a silicon waveguide covering the spectral region from the near-to short-wave-infrared, and the generated signal spans the wavelength range from the edge of the silicon transmission window, approximately 1.06 to beyond 2.4
Abstract: Efficient complementary metal-oxide semiconductor-based nonlinear optical devices in the near-infrared are in strong demand. Due to two-photon absorption in silicon, however, much nonlinear research is shifting towards unconventional photonics platforms. In this work, we demonstrate the generation of an octave-spanning coherent supercontinuum in a silicon waveguide covering the spectral region from the near- to shortwave-infrared. With input pulses of 18 pJ in energy, the generated signal spans the wavelength range from the edge of the silicon transmission window, approximately 1.06 to beyond 2.4 μm, with a −20 dB bandwidth covering 1.124–2.4 μm. An octave-spanning supercontinuum was also observed at the energy levels as low as 4 pJ (−35 dB bandwidth). We also measured the coherence over an octave, obtaining , in good agreement with the simulations. In addition, we demonstrate optimization of the third-order dispersion of the waveguide to strengthen the dispersive wave and discuss the advantage of having a soliton at the long wavelength edge of an octave-spanning signal for nonlinear applications. This research paves the way for applications, such as chip-scale precision spectroscopy, optical coherence tomography, optical frequency metrology, frequency synthesis and wide-band wavelength division multiplexing in the telecom window. A silicon-based source that generates a wide spectrum of light, spanning the near-infrared transparency window of silicon, has been made. Supercontinuum generation involves using short, high-power pulses to generate broad continuous spectra by propagating them through nonlinear media. Supercontinuum sources are needed for applications in spectroscopy and optical coherence tomography. Silicon is an attractive medium since it is compatible with standard semiconductor fabrication processes but it suffers from losses due to nonlinear processes such as two-photon absorption. Now, Neetesh Singh of Massachusetts Institute of Technology in the USA and co-workers have realized a fully coherent supercontinuum generation in a silicon waveguide over a full octave that spans the near to shortwave infrared window. The researchers envision their source being used in applications such as chip-scale precision spectroscopy, optical frequency metrology and optical communications.
113 citations
15 Mar 2010
TL;DR: It is reported that picosecond fiber MOPA pumped supercontinuum source with 39W output, spanning at least 0.4–1.75µm with high and relatively uniform spectral power density, corresponding to peak power density of ∼12.5W/nm in 20ps pulse.
Abstract: We report picosecond fiber MOPA pumped supercontinuum source with 39W output, spanning at least 0.4–1.75µm with high and relatively uniform spectral power density of ∼31.7mW/nm corresponding to peak power density of ∼12.5W/nm in 20ps pulse.
112 citations
TL;DR: In this article, a single-shot spectral interferometer using the supercontinuum pulse generated by self-focusing in atmospheric pressure air has been developed to measure ultrafast refractive index transients either in a direct frequency-to-time mapping mode or in a full Fourier transform mode.
Abstract: We have developed a single-shot spectral interferometer using the supercontinuum pulse generated by self-focusing in atmospheric pressure air. The diagnostic can be used to measure ultrafast refractive index transients either in a direct frequency-to-time mapping mode or in a full Fourier transform mode. In the direct mapping mode, temporal resolution is shown to be strongly restricted by the pulse chirp. In the transform mode, the ultimate temporal resolution is limited by the supercontinuum pulse bandwidth and the maximum pump-induced phase shift.
112 citations