Dual-Wavelength-Modulation mm-Wave and THz Systems: Analysis and Experimental Demonstration At 60 GHz With a Gain-Switched Laser - Gonzalez Guerrero, Luis; Delmade, Amol; Dass, Devika; Browning, Colm; Barry, Liam; Smyth, Frank; Lamela Rivera, Horacio; Carpintero Del Barrio, Guillermo (JOURNAL OF LIGHTWAVE TECHNOLOGY, 2023)