Millimeter-wave signal generation and harmonic upconversion through PM-IM conversion in chirped fiber gratings

A novel technique for generating millimeter-wave signals through phase-to-i ntensity modulation conversion in chirped fiber gratings is proposed and de monstrated Experimental results on generating a 28 GHz signal using harmoni es orders from 7th to 10th are provided. Excellent phase-noise performance (-87 dBc / Hz @ 10KHz) is demonstrated. It is also demonstrated that this t echnique may be efficiently used for harmonically upconverting intermediate frequency signals to the millimeter-wave band Bit-error-rate measurements far different modulation format (QPSK/MQAM) signals, which were upconverted employing the PM-IM conversion technique, show very good performance (< 10 (-9)) and transparency to the modulation format.