Down-conversion RF/photonic link with a monolithically integrated ACP-OPLL phase demodulator

We present a frequency down conversion RF/photonic link with an attenuation-counter-propagating optical phase lock loop (ACP-OPLL) photonic integrated circuit (PIC) receiver. Frequency down conversion was accomplished by nonlinear optical phase modulation in a 2.5mm long transmitter (TX) multi-quantum-well (MQW) phase modulator. The down-conversion link demonstrated RF to IF conversion loss of ~9dB and spurious free dynamic range (SFDR) of ~118dB∙Hz .