Architecture for Integrated RF Photonic Downconversion of Electronic Signals

Abstract

Electronic analog to digital converters (ADCs) are running up against the well-known bit depth vs bandwidth tradeoff. Towards this end, RF photonic-enhanced ADCs have been the subject of interest for some time. Optical frequency comb technology has been used as a workhorse underlying many of these architectures. Unfortunately, such designs must generally grapple with SWaP concerns, as well as frequency ambiguity issues which threaten to obscure critical spectral information of detected RF signals. In this work, we address these concerns via an RF photonic downconverter with potential for easy integration and field deployment by leveraging a novel hybrid microcomb / electro-optic comb design.

arXiv commentOriginal submission replaced after publishing in Optics Letters. The new version includes an updated copyright statement

References in corpus (7)

• Fully integrated ultra-low power Kerr comb generation
• Integrated turnkey soliton microcombs operated at CMOS frequencies
• Universal dynamics and controlled switching of dissipative Kerr solitons in optical microresonators
• High-yield wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits
• Laser soliton microcombs on silicon
• Microresonator Kerr frequency combs with high conversion efficiency
• An integrated low-voltage broadband lithium niobate phase modulator