Analysis and design of fibers for pure-quartic solitons

Lo, Chih-Wei; Stefani, Alessio; Sterke, C. Martijn de; Blanco‐Redondo, Andrea

doi:10.1364/oe.26.007786

Cited by 49 publications

(21 citation statements)

References 35 publications

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“…The intrinsic dispersion of conventional optical waveguides is dominated by quadratic contribution (β 2 ) while the effects of higher-order dispersion are usually weak. In fact a complex structure was required just to achieve dominant negative quartic dispersion [17,28]. This strongly limits the possibility of observing higher-order dispersion soliton propagation in waveguides.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

The interaction of Kerr nonlinearity with even-orders of dispersion: an infinite hierarchy of solitons

Runge¹,

Qiang²,

Alexander³

et al. 2020

Preprint

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Temporal solitons are optical pulses that arise from the balance of negative group-velocity dispersion and self-phase modulation. For decades only quadratic dispersion was considered, with higher order dispersion thought of as a nuisance. Following the recent reporting of pure-quartic solitons, we here provide experimental and numerical evidence for an infinite hierarchy of solitons that balance self-phase modulation and arbitrary negative pure, even-order dispersion. Specifically, we experimentally demonstrate the existence of solitons with pure-sextic (β6), -octic (β8) and -decic (β10) dispersion, limited only by the performance of our components, and show numerical evidence for the existence of solitons involving pure 16 th order dispersion. Phase-resolved temporal and spectral characterization reveals that these pulses, exhibit increasing spectral flatness with dispersion order. The measured energy-width scaling laws suggest dramatic advantages for ultrashort pulses. These results broaden the fundamental understanding of solitons and present new avenues to engineer ultrafast pulses in nonlinear optics and its applications.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

The interaction of Kerr nonlinearity with even-orders of dispersion: an infinite hierarchy of solitons

Runge¹,

Qiang²,

Alexander³

et al. 2020

Preprint

Self Cite

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“…This limitation is in no way fundamental and it could be overcome by using a more broadband pulse-shaper with a larger dynamic range. In the future, fibre platforms with intrinsically high negative FOD [17] could substitute the pulse shaper. Alternatively, microresonator geometries with dominant negative FOD have been recently theoretically studied [19], which highlights a potential route towards laser systems leveraging high-order dispersion in integrated platforms.…”

Section: Discussionmentioning

confidence: 99%

“…They were observed in a spectral range where the second-order (quadratic) dispersion β 2 was positive, the third-order (cubic) dispersion β 3 was negligible and the fourth-order (quartic) dispersion β 4 was negative. Recent theoretical studies have unveiled that PQSs possess an advantageous energy scaling [17,18], which grants them the potential to achieve significantly higher energy than their conventional soliton counterpart for short pulse durations. This discovery has led to efforts to transition from planar silicon photonic crystals to other platforms [17,19], including optical fibres where mature fibre laser technology can be utilized.…”

Section: Introductionmentioning

confidence: 99%

“…Recent theoretical studies have unveiled that PQSs possess an advantageous energy scaling [17,18], which grants them the potential to achieve significantly higher energy than their conventional soliton counterpart for short pulse durations. This discovery has led to efforts to transition from planar silicon photonic crystals to other platforms [17,19], including optical fibres where mature fibre laser technology can be utilized. Initial approaches involved carefully designed photonic crystal fibre (PCF) with multi-layer air holes that exhibit negligible β 2 and large, negative β 4 [17].…”

Section: Introductionmentioning

confidence: 99%

“…This discovery has led to efforts to transition from planar silicon photonic crystals to other platforms [17,19], including optical fibres where mature fibre laser technology can be utilized. Initial approaches involved carefully designed photonic crystal fibre (PCF) with multi-layer air holes that exhibit negligible β 2 and large, negative β 4 [17]. However, the fabrication tolerances required for achieving the necessary control of dispersion are very tight.…”

Section: Introductionmentioning

confidence: 99%

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The pure-quartic soliton laser

Runge¹,

Hudson²,

Tam³

et al. 2019

Preprint

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The generation of ultrashort pulses hinges on the careful management of dispersion. Traditionally, this has exclusively involved second-order dispersion, while higher-order dispersion was treated as a nuisance to be minimized. Here we show that high-order dispersion can be strategically leveraged to access an uncharted regime of ultrafast laser operation. In particular, we demonstrate a modelocked laser, with an intra-cavity spectral pulse-shaper, that emits pure-quartic soliton pulses, which arise from the interaction of the fourth-order dispersion and the Kerr nonlinearity. Using phaseresolved measurements we demonstrate that the energy of these pulses is proportional to the third power of the inverse pulse duration. This implies a dramatic increase in the energy of ultrashort pulses compared to those emitted by soliton lasers to date. These results not only demonstrate a novel approach to ultrafast lasers, but more fundamentally, they clarify the use of higher-order dispersion for optical pulse control, opening up a plethora of possibilities in nonlinear optics and its applications.

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