en عمومى General پژوهشي Research <p><font face="times new roman,times,serif" size="2">The ABCD matrix method is used to simplifying the theoretical coupling efficiency calculation of Elegant Hermite-Cosh-Gaussian (EHChG) laser beams to a Single Mode Fiber (SMF) with a quadric lens formed on the tip. The integrals of coupling efficiency relation are calculated numerically by Boole method. Meanwhile, the structure parameters of surface-lensed fiber are optimized in numerical simulation to achieve maximum coupling efficiency. Results can give some guidance suggestions for designing suitable micro lenses in order to coupling the EHChG laser beams to the SMF.</font></p> ABCD matrix, Coupling efficiency, Elegant Hermite-Cosh-Gaussian beams, Fiber micro-lenses, Laser diode, Single-mode fiber. 75 81 http://ijop.ir/browse.php?a_code=A-10-122-2&slc_lang=en&sid=1 Keshavarz keshavarz@sutech.ac.ir 10031947532846001018 10031947532846001018 Yes Kazempour 10031947532846001019 10031947532846001019 No