We propose the concept and report the development of an ultra-broadband photonics-based RF front-end, as well as its experimental digital performance analysis up to 38 GHz. The proposed RF front-end applies optical frequency multiplication based on the external modulation technique and the optical nonlinear effect four-wave mixing for enabling a combination of photonic-assisted RF upconversion and amplification, regardless of frequency operation. We present ultra-broadband operation and frequency tunability from DC to 38 GHz by simultaneously performing RF conversion and amplification in the optical domain. The experimental results of a successful implementation in a real wireless-optical network demonstrate the RF front-end applicability in the three potential frequency bands for 5G networks, namely, 6.0, 28, and 38 GHz. Furthermore, a detailed digital performance investigation using different modulation formats is presented based on diverse RF and optical parameters, including signal-to-noise ratio, RF gain, and error vector magnitude. Low phase noise, spectral purity, and distortion absence are also observed for all frequency bands.
© 2016 Optical Society of AmericaFull Article | PDF Article
19 October 2016: A correction was made to Eq. (1).
OSA Recommended Articles
Linbojie Huang, Yucheng Zhang, Xiaolei Li, Lei Deng, Mengfan Cheng, Songnian Fu, Ming Tang, and Deming Liu
Opt. Express 27(22) 32147-32157 (2019)
H. Yu, M. Chen, H. Gao, S. Yang, H. Chen, and S. Xie
Opt. Express 22(4) 3918-3923 (2014)
Jingjing Wang, Minghua Chen, Yunhua Liang, Hongwei Chen, Sigang Yang, and Shizhong Xie
Opt. Express 23(2) 839-845 (2015)