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The optical-phase-locked-loop linear phase demodulator is the most critical component for a high dynamic range phase modulated RF/Photonic link. Due to the stringent loop latency requirement, the OPLL should be implemented as a photonic integrated circuit. In this paper we address the design and implementation of an all optical attenuation-counter-propagating (ACP) optical-phase-locked-loop photonic...
We demonstrate the operation of an ultra-compact coherent receiver for linear optical phase demodulation. The receiver, based on a broadband optical phase-locked loop (OPLL) has a bandwidth of 1.5 GHz. Physical delay in the feedback path is dramatically reduced by incorporating novel photonic and electronic components. Using the receiver in an analog link experiment, a spurious free dynamic range...
We present the design, fabrication, and results from the first monolithically integrated optical phase-locked loop (OPLL) photonic integrated circuit (PIC) suitable for a variety of homodyne and offset phase locking applications. This InP-based PIC contains two sampled-grating distributed reflector (SG-DBR) lasers, semiconductor optical amplifiers (SOAs), phase modulators, balanced photodetectors,...
We demonstrate the first integrated optical phase-lock loop (OPLL) photonic IC, containing two SG-DBR lasers with >5 THz tuning range, a balanced detector pair and output modulators. A proof-of-concept homodyne OPLL demonstration has been performed.
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