Stability of out-of-phase solitons and laser pulse self-compression in active multicore fibers

Balakin, A. A.; Litvak, A. G.; Skobelev, S. A.

doi:10.1103/physreva.100.053834

Cited by 13 publications

(17 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In an MCF with closely placed cores, radiation propagates in the form of collective modes of all cores (supermodes), while the coherence between the cores is preserved, which greatly simplifies the further combining of radiation into one optical beam. In recent works, it was shown that the use of an out-of-phase field distribution in MCF with a ring of cores [4], [5], [6], [7] or square grid of cores [8] makes it possible, in principle, to overcome modulation instabilities in a discrete array of cores and increase the total power beyond the self-focusing limit.…”

Section: Introductionmentioning

confidence: 99%

Tapered Multicore Fiber for High-Power Laser Amplifiers

et al. 2022

Self Cite

View full text Add to dashboard Cite

The problem of coherent amplification of the outof-phase mode in tapered multicore fibers with cores arranged in a ring and in a square lattice is studied theoretically. The stability of out-of-phase field distributions with respect to both inhomogeneities of the refractive index and the initial wave field distribution is demonstrated in numerical modeling. Coherent combining of radiation into a single beam with good quality and efficiency of about 80% for ring cores arrangement and more than 90% for square cores arrangement is possible. Achievement of 55 MW of total power at the output of a fiber with 11 × 11 cores is numerically demonstrated.

show abstract

Section: Introductionmentioning

confidence: 99%

Tapered Multicore Fiber for High-Power Laser Amplifiers

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…As a rule, in the study of multicore fibers, primary attention is paid to the in-phase supermode [37,39,40]. However, in the recent analytical, numerical, and experimental works, it has been shown that an out-of-phase supermode (in which the phases of the fields in neighboring cores differ by π) can also be of great interest due to its stability in different nonlinear regimes [41][42][43][44]. Multicore fibers allow operation with pulse energies and powers higher than those of one-core fibers [41,42,44] (however, for ultrashort pulses, spatial walk-off of supermodes should be taken into account [45,46]).…”

Section: Introductionmentioning

confidence: 99%

Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes

Anashkina

Andrianov

2021

Photonics

View full text Add to dashboard Cite

High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for the development of nonlinear optical devices. For nonlinear optical fibers, group velocity dispersion that can be controlled by microstructuring is also of great importance. In this work, we present a comprehensive numerical analysis of dispersion and nonlinear properties of microstructured two-, four-, six-, and eight-core tellurite glass fibers for in-phase and out-of-phase supermodes and compare them with the results for one-core fibers in the near- and mid-infrared ranges. Out-of-phase supermodes in tellurite multicore fibers are studied for the first time, to the best of our knowledge. The dispersion curves for in-phase and out-of-phase supermodes are shifted from the dispersion curve for one-core fiber in opposite directions; the effect is stronger for large coupling between the fields in individual cores. The zero dispersion wavelengths of in-phase and out-of-phase supermodes shift to opposite sides with respect to the zero-dispersion wavelength of a one-core fiber. For out-of-phase supermodes, the dispersion can be anomalous even at 1.55 μm, corresponding to the operating wavelength of Er-doped fiber lasers.

show abstract

“…At high signal power MCF presents an example of nonlinear discrete physical system, interesting both for fundamental science [15,[31][32][33][34]36,37] and for various potential practical applications in nonlinear photonic devices. [24,25,[38][39][40][41][42][43] The case of loss-gain in MCFs in a discrete PT-symmmetric configuration has also attracted attention recently.…”

Section: Introductionmentioning

confidence: 99%

Topological Charge Switch in Active Multi‐Core Fibers

et al. 2021

View full text Add to dashboard Cite

Topological properties can make light field remarkably robust to various external perturbations. The ability to control and change on demand topological characteristics of light paves the way to new interesting physical phenomena and applications. Here, numerical modelling design of the device based on active multi‐core fiber that can change topological charge of the state of light has been proposed. The concept is based on the nonlinear dynamics of optical vortices in active multi‐core optical fiber with linearly coupled cores, saturated gain, and constant linear losses. Results demonstrate that the proposed system can provide change of the topological charge of vortices.

show abstract

Stability of out-of-phase solitons and laser pulse self-compression in active multicore fibers

Cited by 13 publications

References 44 publications

Tapered Multicore Fiber for High-Power Laser Amplifiers

Tapered Multicore Fiber for High-Power Laser Amplifiers

Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes

Topological Charge Switch in Active Multi‐Core Fibers

Contact Info

Product

Resources

About