Fig. 1From: Optical millimeter wave signal generation with frequency 16-tupling using cascaded MZMs and no optical filtering for radio over fiber systemSchematic diagram of frequency 16 tupling system using cascaded MZM. LD: laser diode; RF: Radio Freqency; MZM: Mach-Zehnder modulator; SSMF: standard single mode fiber; PS: Phase ShifterBack to article page