Optical pulse compression to 8 fs at a 5-kHz repetition rate

Knox, Wayne H.; Fork, R. L.; Downer, M. C.; Stolen, R. H.; Shank, C. V.; Valdmanis, J. A.

doi:10.1063/1.95728

Cited by 234 publications

(32 citation statements)

References 8 publications

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“…The frequency chirping by seif-phase modulation [1-10] and the subsequent compression by dispersive (gratings [11][12][13][14][15][16][17][18][19][20], prisms [19][20][21][22][23][24], gratingprism combinations [20,25,26]) or absorptive (gain bandwidth limiting [27][28][29][30][31][32][33]) arrangements is widely applied to shorten picosecond or femtosecond light pulses. So far the shortest optical pulses (wavelength around 620 nm) of 6 fs duration have been generated by chirping pulses (input duration %50 fs) in a single-mode optical fiber and subsequently compressing them in a grating pair and four prism arrangement [25,26].…”

Section: Introductionmentioning

confidence: 99%

Compression of picosecond light pulses of a hybridly mode-locked pulsed Nd : glass laser

Scheidler

Penzkofer

1990

Optics Communications

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Section: Introductionmentioning

confidence: 99%

Compression of picosecond light pulses of a hybridly mode-locked pulsed Nd : glass laser

Scheidler

Penzkofer

1990

Optics Communications

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“…Importantly we show that the large variation in waveguide group index n g leads to a previously unexplored physical mechanism for generating self-steepening with a characteristic time scale τ NL on the order of hundreds of femtoseconds, two orders of magnitude larger than in nonperiodic waveguide systems [16,20]. We derive an analytic formulation and describe the origin of this effect.…”

Section: Introductionmentioning

confidence: 99%

“…In practice the Kerr dispersion is often neglected. These are the traditional self-steepening terms known in unstructured waveguides and do not play a role here with these small 013816-2 magnitudes [16]. The third term encompassing effective modal areas A eff was considered in fibers [26], and theoretically in silicon channel waveguides [20] with surprisingly little attention in photonic crystal fibers [27].…”

Section: Self-steepening In Phcwgsmentioning

confidence: 99%

“…The earliest investigations of SS in waveguide systems were carried out in glass fiber with these studies emphasizing the spectral reshaping properties [15,16] or the formation of optical shock fronts [17]. Later it was shown that SS is essential for extending the validity of the generalized nonlinear Schrödinger equation (GNLSE) envelope approximation down to the single-cycle regime [18], and for explaining broadband supercontinuum generation [19].…”

Section: Introductionmentioning

confidence: 99%

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Giant anomalous self-steepening in photonic crystal waveguides

Husko

Colman

2015

Phys. Rev. A

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Self-steepening of optical pulses arises due the dispersive contribution of the χ (3) (ω) Kerr nonlinearity. In typical structures this response is on the order of a few femtoseconds with a fixed frequency response. In contrast, the effective χ (3) Kerr nonlinearity in photonic crystal waveguides (PhCWGs) is largely determined by the geometrical parameters of the structure and is consequently tunable over a wide range. Here we show self-steepening based on group-velocity (group-index) modulation for the first time, giving rise to a new physical mechanism for generating this effect. Further, we demonstrate that periodic media such as PhCWGS can exhibit self-steepening coefficients two orders of magnitude larger than typical systems. At these magnitudes the self-steepening strongly affects the nonlinear pulse dynamics even for picosecond pulses. Due to interaction with additional higher-order nonlinearities in the semiconductor materials under consideration, we employ a generalized nonlinear Schrödinger equation numerical model to describe the impact of self-steepening on the temporal and spectral properties of the optical pulses in practical systems, including new figures of merit. These results provide a theoretical description for recent experimental results presented in [Scientific Reports 3, 1100) and Phys. Rev. A 87, 041802 (2013]. More generally, these observations apply to all periodic media due to the rapid group-velocity variation characteristic of these structures.

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“…The white-light continuum generated in a fiber has been used to generate some of the world's shortest pulses of around 5 fs. 46,47 A white-light continuum pulse is an ideal seed for an optical parametric amplifier (see section 3.3). An implication of the nonlinear refractive index is self-focusing or defocusing.…”

Section: White-light Generation and The Optical Kerr Effectmentioning

confidence: 99%

Ultrafast Laser Technology and Spectroscopy

Reid

Wynne

2000

Encyclopedia of Analytical Chemistry

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Ultrafast laser technology and spectroscopy involves the use of femtosecond (10 −15 s) laser and other (particle) sources to study the properties of matter. The extremely short pulse duration allows one to create, detect and study very short‐lived transient chemical reaction intermediates and transition states. Ultrafast lasers can also be used to produce laser pulses with enormous peak powers and power densities. This leads to applications such as laser machining and ablation, generation of electromagnetic radiation at unusual wavelengths (such as millimeter waves and X‐rays), and multiphoton imaging. The difficulty in applying femtosecond laser pulses is that the broad frequency spectrum can lead to temporal broadening of the pulse on propagation through the experimental set‐up. In this article, we describe the generation and amplification of femtosecond laser pulses and the various techniques that have been developed to characterize and manipulate the pulses.

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Optical pulse compression to 8 fs at a 5-kHz repetition rate

Abstract: Single amplified 40-fs optical pulses are compressed to 8-fs duration at a 5-kHz repetition rate using self-phase modulation in a single-mode optical fiber.

Cited by 234 publications

References 8 publications

Compression of picosecond light pulses of a hybridly mode-locked pulsed Nd : glass laser

Compression of picosecond light pulses of a hybridly mode-locked pulsed Nd : glass laser

Giant anomalous self-steepening in photonic crystal waveguides

Ultrafast Laser Technology and Spectroscopy

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