Comb-based radiofrequency photonic filters with rapid tunability and high selectivity

By V. Supradeepa, C. Long, R. Wu, F. Ferdous, E. Hamidi, Daniel E. Leaird, Andrew M. Weiner. Nature Photonics, 2011

325 citations recorded by the source corpus.

Photonic technologies have received considerable attention regarding the enhancement of radiofrequency electrical systems, including high-frequency analogue signal transmission, control of phased arrays, analog-to-digital conversion and signal processing. Although the potential of radiofrequency photonics for the implementation of tunable electrical filters over broad radiofrequency bandwidths has been much discussed, the realization of programmable filters with highly selective filter lineshapes and rapid reconfigurability has faced significant challenges. A new approach for radiofrequency photonic filters based on frequency combs offers a potential route to simultaneous high stopband attenuation, fast tunability and bandwidth reconfiguration. In one configuration, tuning of the radiofrequency passband frequency is demonstrated with unprecedented (∼40 ns) speed by controlling the optical delay between combs. In a second, fixed filter configuration, cascaded four-wave mixing simultaneously broadens and smoothes the comb spectra, resulting in Gaussian radiofrequency filter lineshapes exhibiting an extremely high (>60 dB) main lobe to sidelobe suppression ratio and (>70 dB) stopband attenuation. Using electro-optically generated frequency combs, scientists demonstrate radiofrequency photonic filters that can potentially provide simultaneous high stopband attenuation, fast tunability and bandwidth reconfiguration.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/02cfa149a20d151c00180baaab0f482149ec4d49

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In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Integrated electro-optics on thin-film lithium niobate (2024, unknown): “High-performance frequency shifting and beam splitting operations at GHz band have the potential to impact applications in communications 21,124 , classical information processing 35,39,125,126 as well as quantum computing 127–132 .”
Microwave Photonic Radars (2020, background): “sampling and quantization [111]–[113], filtering [114]–[116], and time reversal [117] can be achieved.”
Photonic RF Phase-Encoded Signal Generation With a Microcomb Source (2020, methodology): “significant potential to overcome the limitations of their electronic counterparts [4] due to their intrinsically broad bandwidth, immunity from electromagnetic interference, and low propagation loss [5, 6, 7, 8, 9, 10, 11]. Significant effort has been devoted to realizing photonic-assisted RF phase”
Micro-combs: A novel generation of optical sources (2017, background): “This type of filter requires a large number of equidistantwavelengths and optical frequency combs have recently demonstrated a great potential in this direction [296].”
Photonic RF and microwave filters based on 49 GHz and 200 GHz Kerr microcombs (2020, background): “des since they offer ultra-high RF bandwidths, low transmission loss and strong immunity to electromagnetic interference. They have found wide applications ranging from radar systemsto communications [71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,”
Optical frequency comb technology for ultra‐broadband radio‐frequency photonics (2014, background): “It is very interesting to note that with opto-electronic frequency comb technology, this task can be accomplished by controlling the phase shift of the RF signal that drives the comb [93].”
Microwave and RF Photonic Fractional Hilbert Transformer Based on a 50 GHz Kerr Micro-Comb (2019, unknown): “modulators [38], and optical micro-resonators [39] have been demonstrated.”
RF Photonics: An Optical Microcombs’ Perspective (2018, background): “tics [14]–[16], telecommunications [17], [18] and RF photonics [19]–[21].”
High-Power Broadly Tunable Electrooptic Frequency Comb Generator (2013, background): “We mention, for instance, optical communications [7-9], radiofrequency photonics [10-13], and optical arbitrary waveform generation [14].”
Low-power, chip-based stimulated Brillouin scattering microwave photonic filter with ultrahigh selectivity (2014, background): “al tuning range (2900%) compared to any integrated filter technology to date. The lowest insertion loss measured in our filter was -30 dB, which is lower than typical losses in integrated MWP filters [11,12] but is high compared to electronics solutions. This loss can be recuperated using two approa”