The major characteristics of optical fiber are that data can be transmitted in the form of light with reduced dispersion and attenuation. The aim is to design a passive optical system in hospital environment with reduced noise figure, BER, increased gain and quality factor for effective transmission of data using OptiSystem software. Data considered in this scenario is image (X-ray) and video in the network design. A passive optical network (PON) was designed floor wise and ward wise and the parameters like optical signal to noise ratio (OSNR), gain, noise figure, output signal, BER (Bit Error Rate), Q factor (Quality factor) were checked after successful transmission of data which falls within the expected range. The expected value of qual...