Phase-locking of multicore fibre laser due to talbot self-reproduction

Napartovich, Anatoly P.; Vysotsky, D. V.

doi:10.1080/09500340308234581

Cited by 18 publications

(3 citation statements)

References 29 publications

(21 reference statements)

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“…4 -6 It has been demonstrated that such annular dielectric waveguides can be fabricated with a femtosecond-pulse laser-writing technique, 7 and that their self-imaging ability can be applied in phase locking of a circular array of fiber lasers. 8,9 Theoretical studies dealing with the self-imaging phenomenon in annular-core fibers have, so far, been restricted to the domain of scalar optics by means of the weakly guiding approximation. 5,6,8 In such annular fibers, however, the approximation may not be very accurate, especially if the fiber core is very thin, and it has a large diameter.…”

Section: Introductionmentioning

confidence: 99%

Modal analysis of the self-imaging phenomenon in optical fibers with an annular core

Hautakorpi¹,

Kaivola²

2006

Appl. Opt.

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We investigate the occurrence of self-images, or Talbot images, in a spatially multimode field that propagates along an optical fiber whose core has an annular-shaped cross section. By use of full-vectorial modal analysis, we study the effect of the transverse fiber dimensions on the self-imaging properties. According to our analysis, good self-images can be expected when the fiber core is thin and the modes are far from their cutoffs. However, as the core diameter is made larger to increase the number of modes available in the imaging, the general self-imaging properties tend to deteriorate.

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Section: Introductionmentioning

confidence: 99%

Modal analysis of the self-imaging phenomenon in optical fibers with an annular core

Hautakorpi¹,

Kaivola²

2006

Appl. Opt.

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“…In the passive phase-locking approach, called self-phase locking, cophasing is obtained based on a coupling mechanism that can be realized by energy coupling (self-organization of the laser emissions) or nonlinear interactions effects [160,[225][226][227][228][229][230][231][232][233][234][235][236][237]. This approach is simple to design and operate.…”

Section: Passive Phase Controlmentioning

confidence: 99%

Towards Ultimate High-Power Scaling: Coherent Beam Combining of Fiber Lasers

2021

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Fiber laser technology has been demonstrated as a versatile and reliable approach to laser source manufacturing with a wide range of applicability in various fields ranging from science to industry. The power/energy scaling of single-fiber laser systems has faced several fundamental limitations. To overcome them and to boost the power/energy level even further, combining the output powers of multiple lasers has become the primary approach. Among various combining techniques, the coherent beam combining of fiber amplification channels is the most promising approach, instrumenting ultra-high-power/energy lasers with near-diffraction-limited beam quality. This paper provides a comprehensive review of the progress of coherent beam combining for both continuous-wave and ultrafast fiber lasers. The concept of coherent beam combining from basic notions to specific details of methods, requirements, and challenges is discussed, along with reporting some practical architectures for both continuous and ultrafast fiber lasers.

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Section: Passive Phase Controlmentioning

confidence: 99%

Towards Ultimate High-power Scaling: Coherent Beam Combing of Fiber Lasers

Fathi¹,

Närhi²,

Gumenyuk³

2021

Preprint

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Fiber laser technology has been demonstrated as a versatile and reliable approach for laser source manufacturing with a wide range of applicability in various fields ranging from science to industry. The power/energy scaling of single fiber laser systems has faced several fundamental limitations. To overcome them and to boost the power/energy level even further, combining the output powers of multiple lasers has become the primary approach. Among various combining techniques, the coherent beam combining of fiber amplification channels is the most promising approach, instrumenting ultra-high power/energy lasers with near-diffraction-limited beam quality. This paper provides a comprehensive review of the progress of coherent beam combining for both continuous-wave and ultrafast fiber lasers. The concept of coherent beam combining from basic notions to specific details of methods, requirements, and challenges are discussed, along with reporting some practical architectures for both continuous and ultrafast fiber lasers.

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Phase-locking of multicore fibre laser due to talbot self-reproduction

Cited by 18 publications

References 29 publications

Modal analysis of the self-imaging phenomenon in optical fibers with an annular core

Modal analysis of the self-imaging phenomenon in optical fibers with an annular core

Towards Ultimate High-Power Scaling: Coherent Beam Combining of Fiber Lasers

Towards Ultimate High-power Scaling: Coherent Beam Combing of Fiber Lasers

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