In the present scenario the process control industries mainly uses 1-5 Volt or 4-20 mA protocol for transmitting the measured signal to remote location operators. These types of protocol prone to interference and limited data transfer rate. To overcome these types of limitation we proposed photonic based transmitter for liquid level measurement which will enhance data transfer rate and interference reduction to eliminate noise signal in the channel during transmission to make transmission more reliable, accurate and consistent in performance. The required mathematical derivation and the principle of operation of the transmitter are shown in the paper. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.