Experimental setup of the proposed compressive imaging system. PPG: pulse pattern generator, OPM: optical phase modulator, OTD: optical time delay, MZM: Mach-Zehnder modulator, EDFA: Erbium-doped fiber amplifier, Cir: circulator, DCF: dispersion compensating fiber, SMF: single mode fiber, PD: photodetector, ADC: analog-to-digital converter, DSP: digital signal processor.