Study on fundamental soliton propagation and their interaction in Enhanced-Large Effective Area Fiber (E-LEAF)

Abstract

In this work, the effect of soliton propagation due to interplay between Self-Phase Modulation (SPM) and Group Velocity Dispersion (GVD) is demonstrated in anomalous regime (ß <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> <;0 ar D>0). The telecommunication system of bitrate 10 and 40Gbps is implemented with Enhanced Large Effective Area Fiber (E-LEAF) as a data transmitting fiber. The combined effect of GVD and SPM is noted by matching the dispersion length (L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">D</sub> ) and non-linear length (L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">NL</sub> ) with soliton period of 247.7206Km and 15.48I£m for bitrate of 10Gbps and 40Gbps respectively. The interaction between two soliton propagating in phase to each other in same direction are found to be at 49108.59I£m for 10Gbps system and 3069.15I£m for 40Gbps system for the relative spacing (q <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> ) of 529. It is seen that the collision can be avoided by increasing the soliton separation which is evident from 10 Gbps system, such that the collision length (Lc <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">oll</sub> ) is much greater than transmission length (L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</sub> ).