Interferometric switch based all optical scheme for conversion of binary number to its quaternary-signed digit form. - Tanay Chattopadhyay; Mantu Kumar Das; Jitendra Nath Roy; Ajoy Kumar Chakraborty; Dilip Kumar Gayen (IET Circuits Devices Syst., 2011)

All-optical binary to gray code and gray to binary code conversion scheme with the help of semiconductor optical amplifier-assisted sagnac switch. - Dilip Kumar Gayen; Tanay Chattopadhyay; Mantu Kumar Das; Jitendra Nath Roy; Rajat Kumar Pal (IET Circuits Devices Syst., 2011)