SIMULATIONS OF PUMP ABSORPTION IN TANDEM-PUMPED OCTAGON DOUBLE-CLAD FIBERS

The cladding pumping within a double-clad fiber structure is an effective technique to convert high-power multimode beam into high-power, almost diffraction limited beam.Since the pump efficiency is limited by the presence of higher skew-ray modes, geometrical perturbations are used to scramble the modes and to achieve a higher overlap of the elect

The activities for other purposes in the paddy soil will cause soil damage and reduce the values of soil productivity.The use of organic fertilizer is one of efforts to recover and rehabilitate the soil, because it is the key to Ice Maker Condensers improve its properties.The purposes of this research were to identify the characteristics of the soi