Design and simulation of 40 GHz–WDM communication system-based optical frequency comb generator

In this paper, a 40 GHz wavelength division multiplexing communication system-based optical frequency comb generator (WDM–OFCG) is design and investigated via OptiSystem software. The proposed design produced up to 25 channels with constant channel spacing of 40 GHz and average power of –10.84 dBm. The generated comb is spread over approximately 8 nm, ranging from 1546.17 to 1553.85 nm. In addition, the generated comb is employed as a multiwavelength laser source to carry information with a bit rate of 375 Gbps over a 120 km link distance. This represents an efficient evaluation to the proposed design since the achievable bit rate product repeater distance (BL) is about 45,000 (Gbps.km).