Effect of the Fiber Bragg Grating based Dispersion Control on the Transmission Length of Pico second Optical Pulses in a Single Mode Fiber Link
M.Venkata Sudhakar and Rajini G.K.
Optical fiber interconnects are playing a vital role in satisfying the demand for high-speed data transmission for long-range applications. The primary goal of the work presented here is to design an optical fiber communications system suitable for use at distances of up to 100 km. In this work, an intensity-modulated scheme at the transmitter and direct reception at the detector are employed to lower the overall system cost. Single-mode fiber (SMF) with nonlinearities is used as a transmission medium, connecting both transmitting and receiving sections. In order to get rid of the distortion brought on by the fiber, Bragg grating is used at the SMF’s output. A Gaussian LPF is included in the receiver to eliminate the APD noise induced in the process of optical-to-electrical signal conversion. The performance of the system at 10 Gbps is assessed by examining the BER, Q-factor, and eye diagrams. The theoretical description of a Bragg grating is provided, and this work employs Optisystem software-based simulation. The results obtained reveal a BER value below 10 -13 in the entire range of 100 km, in addition to the eye-opening factor of 0.85.
Keywords: optical link, laser diode, fiber Bragg grating, SMF