Integral order photonic RF signal processors based on a soliton crystal micro-comb source. (27th October 2021)

• Record Type: Journal Article
• Authors: Tan, Mengxi; Xu, Xingyuan; Wu, Jiayang; Corcoran, Bill; Boes, Andreas; Nguyen, Thach G; Chu, Sai T; Little, Brent E; Morandotti, Roberto; Mitchell, Arnan; Moss, David J
• Is Part Of: Journal of optics. Volume 23:Number 12(2021)
• Publication Date: 2021-10-27
• Subjects: RF photonics -- optical resonators -- signal processor; Optics -- Periodicals; 535.05
• DOI: 10.1088/2040-8986/ac2eab
• Languages: English
• ISSNs: 2040-8978

Abstract

Abstract: Soliton crystal micro-combs are powerful tools as sources of multiple wavelength channels for radio frequency (RF) signal processing. They offer a compact device footprint, a large number of wavelengths, very high versatility, and wide Nyquist bandwidths. Here, we demonstrate integral order RF signal processing functions based on a soliton crystal micro-comb, including a Hilbert transformer and first, second and third-order differentiators. We compare and contrast the results and the trade-offs involved with varying the comb spacing, and tap design and shaping methods.