Experimental and numerical determination of coupling constant in a multicore fiber

Wrage, M.; Glas, P.; Leitner, Martin; Sandrock, T.; Elkin, N. N.; Napartovich, Anatoly P.; Sukharev, A. G.

doi:10.1016/s0030-4018(99)00747-6

Cited by 16 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The central part, including the core area and the periodic microstructure zone, did not reveal any obvious sign of deformation. Nevertheless, it is important to note that even small variations in the shape of microcores can affect the overlap between optical modes that propagate in neighboring cores and therefore the coupling between these cores, even though the coupling constant is barely affected by such imperfections [25].…”

Section: Photonic Crystal Fibermentioning

confidence: 99%

Decoupling and asymmetric coupling in triple-core photonic crystal fibers

et al. 2008

View full text Add to dashboard Cite

We systematically investigate the intercore coupling in triple-core photonic crystal fibers (PCFs). Coupledmode equations are developed and solved analytically in the linear approximation. We derive the eigenmodes in triple-core PCFs, in particular we model the decoupling mode and test its stability against perturbations. The coupling coefficients and the coupling length are determined experimentally and found to agree extremely well with the calculated results. We describe the propagation of light in triple-core PCFs for different launching conditions.

show abstract

Section: Photonic Crystal Fibermentioning

confidence: 99%

Decoupling and asymmetric coupling in triple-core photonic crystal fibers

et al. 2008

View full text Add to dashboard Cite

show abstract

“…This code was tested by comparison of theoretical predictions for monochromatic light propagation within a large fiber with 38 micro-cores with their axes placed on a circle and experimental data for this system [6].…”

Section: Mathematical Model Of Multi-core Fiber Lasermentioning

confidence: 99%

A role of non-linearity in self-organization in fiber laser arrays

Napartovich

Elkin

Troshchieva

et al. 2006

Fiber Lasers III: Technology, Systems, and Applications

View full text Add to dashboard Cite

Along with rapid progress in characteristics of single-fiber lasers much attention is paid these days to the problem of phase locking of multi-core fiber lasers. It is known that only strong-coupled system has a chance to be phase locked despite non-identity of channels. In case of the strong inter-channel coupling the traditional theoretical approach based on expansion over modes of individual cores fails. We have developed 3D diffraction numerical code, and results of its implementation to simulations of 7-core hexagonal fiber structure experimentally studied recently are reported. Detailed analysis of light propagation in this system, where self-organization effect was observed, shows that the dominant mechanism of coherence formation in an array of co-propagating beams is mode spatial filtering produced by the gain assembly. Non-linear resonance refraction exerts a weak influence on appearance of self-organization. The ways to achieve better selection of a single array mode are discussed. For the first time, the tolerance limits on micro-core parameters for keeping phase-locking are numerically found.

show abstract

“…2,12,13 Whole resonator modes have been employed in describing laser arrays with transverse coupling. 14 Specifically, coupled mode theory using whole cavity modes has been used extensively in describing multi-stripe broad-area laser arrays, [15][16][17] multi-core fiber lasers, 18 VCSELs, 19,20 transversely coupled semiconductor lasers, 21,22 and arrays of other transversely coupled waveguides. [23][24][25] In this paper we look at systems of lasers coupled through an external resonator with no transverse coupling.…”

Section: Introductionmentioning

confidence: 99%

Resonator modes and mode dynamics for an external cavity-coupled laser array

et al. 2015

View full text Add to dashboard Cite

Employing a Fox-Li approach, we derived the cold-cavity mode structure and a coupled mode theory for a phased array of N single-transverse-mode active waveguides with feedback from an external cavity. We applied the analysis to a system with arbitrary laser lengths, external cavity design and coupling strengths to the external cavity. The entire system was treated as a single resonator. The effect of the external cavity was modeled by a set of boundary conditions expressed by an N -by-N frequency-dependent matrix relation between incident and reflected fields at the interface with the external cavity. The coupled mode theory can be adapted to various types of gain media and internal and external cavity designs.

show abstract

Experimental and numerical determination of coupling constant in a multicore fiber

Cited by 16 publications

References 18 publications

Decoupling and asymmetric coupling in triple-core photonic crystal fibers

Decoupling and asymmetric coupling in triple-core photonic crystal fibers

A role of non-linearity in self-organization in fiber laser arrays

Resonator modes and mode dynamics for an external cavity-coupled laser array

Contact Info

Product

Resources

About