Two techniques for temporal pulse compression in gas-filled hollow-core kagomé photonic crystal fiber

Mak, Ka Fai; Travers, John C.; Joly, Nicolas Y.; Abdolvand, A.; Russell, P. St. J.

doi:10.1364/ol.38.003592

Cited by 78 publications

(46 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This new type of PCF offers a relatively large core (30-60 mm), low propagation loss and allows studying a variety of nonlinear effects 37 . Interestingly, the Kagome PCF has been recognized as the perfect waveguide for nonlinear compression of mJ-level pulses 38,39 , whereas conventional capillaries have extremely high propagation losses due to the required small diameter. Furthermore, they can be operated at high average powers 40 .…”

Section: Methodsmentioning

confidence: 99%

“…Further spectral broadening was not possible with this specific fiber due to the occurrence of other nonlinear effects. However, it has already been demonstrated that proper fiber designs allow for the achievement of 10 fs pulses 39 . Temporal compression is then achieved using four reflections on highly dispersive and broadband (2350 fs 2 per reflection, 980-1080 nm) chirped mirrors.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Exploring new avenues in high repetition rate table-top coherent extreme ultraviolet sources

et al. 2015

View full text Add to dashboard Cite

The process of high harmonic generation (HHG) enables the development of table-top sources of coherent extreme ultraviolet (XUV) light. Although these are now matured sources, they still mostly rely on bulk laser technology that limits the attainable repetition rate to the low kilohertz regime. Moreover, many of the emerging applications of such light sources (e.g., photoelectron spectroscopy and microscopy, coherent diffractive imaging, or frequency metrology in the XUV spectral region) require an increase in the repetition rate. Ideally, these sources are operated with a multi-MHz repetition rate and deliver a high photon flux simultaneously. So far, this regime has been solely addressed using passive enhancement cavities together with low energy and high repetition rate lasers. Here, a novel route with significantly reduced complexity (omitting the requirement of an external actively stabilized resonator) is demonstrated that achieves the previously mentioned demanding parameters. A krypton-filled Kagome photonic crystal fiber is used for efficient nonlinear compression of 9 mJ, 250 fs pulses leading to ,7 mJ, 31 fs pulses at 10.7 MHz repetition rate. The compressed pulses are used for HHG in a gas jet. Particular attention is devoted to achieving phase-matched (transiently) generation yielding .10 13 photons s -1 (.50 mW) at 27.7 eV. This new spatially coherent XUV source improved the photon flux by four orders of magnitude for direct multi-MHZ experiments, thus demonstrating the considerable potential of this source.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Exploring new avenues in high repetition rate table-top coherent extreme ultraviolet sources

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The stateof-the-art approach to generate these pulses uses frequency conversion and amplification via OPA. High-energy pump and seed for OPA eventually relies on CPA schemes followed by nonlinear spectral broadening [15,16]. However, access to the long MIR wavelengths has been limited due to the nearly exclusive use of near-infrared (NIR) pump sources at 800 nm and 1 μm [17].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the pulse-compression experiments demonstrated so far in Kagome fibers have used input pulses of sub-ps duration [15,[35][36][37]. Consequently, due to the high peak power, the throughput pulse energy of those experiments was limited to few hundreds of micro-joule energy in the presence of air [30].…”

Section: Introductionmentioning

confidence: 99%

Kagome-fiber-based pulse compression of mid-infrared picosecond pulses from a Ho:YLF amplifier

Murari¹,

Stein²,

Çankaya³

et al. 2016

Optica

View full text Add to dashboard Cite

Over the last decade, the development of ultrafast laser pulses in the mid-infrared (MIR) region has led to important breakthroughs in attosecond science and strong-field physics. However, as most such broadband MIR laser sources are near-IR pumped, the generation of high-intensity, long-wavelength MIR pulses is still a challenge, especially starting from picosecond pulses. Here we report, both experimentally and numerically, nonlinear pulse compression of sub-millijoule picosecond pulses down to sub-300 fs at 2050 nm wavelength in gas-filled Kagome-type hollow-core photonic crystal fibers for driving MIR optical parametric amplifiers. The pump laser is comprised of a compact fiber laser-seeded 2 μm chirped pulse amplification system based on a Ho:YLF crystal at 1 kHz repetition rate. Spectral broadening is studied for different experimental conditions with variations of gas pressure and incident pulse energies. The spectrally broadened 1.8 ps pulses with a Fourier-limited duration of 250 fs are compressed using an external prism-based compressor down to 285 fs and output energy of 125 μJ.

show abstract

“…Figure 1(a) shows the experimental spectra at the fiber output. The following phenomena can be identified: soliton self-compression [12,13] (for input energies smaller than 4 μJ), supercontinuum generation [15], DW emission [16,17] and soliton blue-shifting [8] (between 4 and 8 μJ), and finally a novel effect: plasmainduced soliton fission for input energies greater than 8 μJ. These effects will be explained in the following, and the origin of the plasma-induced soliton fission identified.…”

mentioning

confidence: 99%

PHz-Wide Spectral Interference Through Coherent Plasma-Induced Fission of Higher-Order Solitons

et al. 2017

View full text Add to dashboard Cite

We identify a novel regime of soliton-plasma interactions in which high-intensity ultrashort pulses of intermediate soliton order undergo coherent plasma-induced fission. Experimental results obtained in gasfilled hollow-core photonic crystal fibers are supported by rigorous numerical simulations. The cumulative blueshift of higher-order input solitons with ionizing intensities results in pulse splitting before the ultimate self-compression point, leading to the generation of robust pulse pairs with PHz bandwidths. The novel dynamics closes the gap between plasma-induced adiabatic soliton compression and modulational instability.PACS numbers: 42.81. Dp, 42.65.Re, 32.80.Fb The interaction of ultrashort laser pulses with photoinduced plasmas has been the subject of intense research, and its understanding is of fundamental importance in many different fields, for example optical filamentation [1] and attosecond physics [2]. The field has been mostly studied in free space [3] and fiber capillaries [4]. In both these cases, however, spurious spatial effects complicate the dynamics and control over the propagation of the laser pulses is limited. Over the past few years, gas-filled hollow-core photonic crystal fiber [5] (PCF) has matured as an ideal platform for studying the interaction of laser light with matter. The tight confinement of high-intensity femtosecond pulses in a single spatial mode with precisely controllable anomalous dispersion allows established soliton dynamics to be extended into the strong-field regime [6], opening up unique possibilities. For the first time, it has been possible to study how optical solitons interact with plasmas over long pathlengths and broad frequency ranges in a well-controlled environment, as well as effects such as plasma-induced blue-shifting [7,8], adiabatic soliton compression [9] and modulational instability (MI) [10].In previous work, soliton-plasma interactions were mainly studied in the regimes of low and very high soliton order. Here we investigate high-intensity ultrashort solitons of intermediate order, and demonstrate novel coherent plasma-induced fission, leading to pulse splitting and the production of robust pulse pairs of PHz bandwidth that co-propagate phase-locked over cm-long distances. We furthermore show that the regimes of soliton-based pulse compression [11][12][13], supercontinuum generation [14,15], dispersive wave (DW) emission [16,17], soliton blue-shifting and plasma-induced fission can be accessed in a single system, simply by changing the input pulse energy. The findings are of great practical interest as hollow-core PCF-based pulse manipulation schemes evolve into a highly-demanded asset in modern high-repetition rate laser systems [18,19].In the experiment, an 8-cm-long kagomé-type PCF with 36 μm core diameter and 200 nm core wall thickness was placed in a gas-cell filled with 2 bar of Kr. It was pumped by 28-fs-long (full-width-half-maximum -FWHM) pulses at ~0.29 PHz (1.03 μm) with up to 13.2 μJ pulse energy at a repetition rate of 151 kHz....

show abstract

Two techniques for temporal pulse compression in gas-filled hollow-core kagomé photonic crystal fiber

Cited by 78 publications

References 18 publications

Exploring new avenues in high repetition rate table-top coherent extreme ultraviolet sources

Exploring new avenues in high repetition rate table-top coherent extreme ultraviolet sources

Kagome-fiber-based pulse compression of mid-infrared picosecond pulses from a Ho:YLF amplifier

PHz-Wide Spectral Interference Through Coherent Plasma-Induced Fission of Higher-Order Solitons

Contact Info

Product

Resources

About