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- Title
Photonic down-conversion and linearisation with tunable IF bandwidth and improved spurious-free dynamic range.
- Authors
Xiang Zhu; Tao Jin; Hao Chi; Guochuan Tong; Dong Li; Lulu Zuo; Weimin Liu; Ying Fu
- Abstract
A scheme for simultaneous down-conversion and linearisation of radio-frequency (RF) signals is proposed and demonstrated. Based on carrier-suppressed double-sideband modulation, the input RF signal can be down-converted to any intermediate frequency (IF) tone in the range of 8-12 GHz. Compared with the down-conversion scheme with two cascaded intensity modulators, the proposed scheme has improvement of >21 dB of the suppression ratio of third-order intermodulation distortion and 6.17 dB of spurious-free dynamic range.
- Subjects
RADIO frequency; ELECTRONIC modulation; MODULATION theory; INTERMODULATION distortion; PHOTONICS; SIGNAL processing
- Publication
Electronics Letters (Wiley-Blackwell), 2019, Vol 55, Issue 2, p105
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2018.7274