Calculate the power budget for a fiber optical communication system, where the attributes of transmission network are given below : the light source has a wavelength of 850nm, there are four connectors and two splices in the link . assume that bit rate is equal to Hz rate the transmission signal level is 0 dBm and the reciever needs -15 dBm. the optical fibre has three characteristics: 50/125 multimode fibre, attenuation: 3.0 dB/km at 850 nm. fibre splices 0.1 dB loss. Bandwidth specification is 500 MHz-Km at 850 nm