MB1c code in optical fiber communication

Abstract: This paper describes a new line code which is suitable for a high-speed optical digital transmission system of more than 400 Mbits/s. This line code, named mB1C code, is created by means of a complemental pulse which is inserted every m bits. The need for line codes is discussed. The 4B1C code is applied twice to each data byte, while the idle cells, which are used at the physical layer for cell rate decoupling and cell delineation, are. Abstract: An attractive analytical formula for mB1C codes is deduced using computation based on the finite-state-machine approach. [pdf]