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9 December 2014 Spatially flat in-phase supermode in multi-core photonic crystal fibers by manipulating refractive of doped region
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Abstract
One provides a simple recipe, which is manipulating refractive of doped region of the MCPCF, to obtain the equal amplitude distribution of the in-phase supermode for multicores photonic crystal fibers (MCPCFs). Using coupled mode theory and vector finite element method (VFEM), a 7-core PCF is analyzed in detail and the results are applied to 16-,18- and 19-core PCFs, which will find important applications in high-power MCPCF lasers and amplifiers. One shows that it is possible to construct uniformly distributed modes for the nontrivial examples of 7- 16-, 18- and 19-core PCFs. One demonstrates that an equal amplitude distribution of in-phase supermode can be achieved by manipulating refractive of doped region in cores area. This research would provide a theoretical basis for investigating equal amplitude in-phase supermode in the MCPCF.
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Cheng Zhou, Hai-kun Zhang, Peng Song, Jing Wang, and Xin Li "Spatially flat in-phase supermode in multi-core photonic crystal fibers by manipulating refractive of doped region", Proc. SPIE 9294, International Symposium on Optoelectronic Technology and Application 2014: Development and Application of High Power Lasers, 929402 (9 December 2014); https://doi.org/10.1117/12.2065642
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