Abstract

A radio-over-fiber system uses light to carry a microwave subcarrier on optical fibers. The microwave is usually frequency modulated for wireless broadcasting. A conventional optical communication system usually operates at the baseband with amplitude modulation. The interface of the two systems thus needs an upconversion from the baseband to the microwave band with AM-to-FM transformation. An all-optical solution employing an optically injected semiconductor laser is investigated. The laser is operated in a dynamic state, where its intensity oscillates at a microwave frequency that varies with the injection strength. When the injection carries AM data, the microwave is frequency modulated accordingly. We demonstrate optical conversion from an OC-12 622-Mbps AM baseband signal to the corresponding FM microwave signal. The microwave is centered at $15.90\mathrm{GHz}$. A bit-error rate of less than ${10}^{-9}$ is measured.

© 2006 Optical Society of America

Double-locked semiconductor laser for radio-over-fiber uplink transmission

Cuicui Cui, Xuelei Fu, and Sze-Chun Chan
Opt. Lett. 34(24) 3821-3823 (2009)

Optical double-sideband modulation to single-sideband modulation conversion using period-one nonlinear dynamics of semiconductor lasers for radio-over-fiber links

Yu-Han Hung, Cheng-Hao Chu, and Sheng-Kwang Hwang
Opt. Lett. 38(9) 1482-1484 (2013)

All-optical frequency upconversion for radio-over-fiber applications based on cross-gain modulation and cross-polarization modulation in a semiconductor optical amplifier

Wei Li, Wen Hui Sun, Wen Ting Wang, and Ning Hua Zhu
Opt. Lett. 39(9) 2672-2675 (2014)

Period-one oscillation for photonic microwave transmission using an optically injected semiconductor laser

Sze-Chun Chan, Sheng-Kwang Hwang, and Jia-Ming Liu
Opt. Express 15(22) 14921-14935 (2007)

Photonic microwave amplification for radio-over-fiber links using period-one nonlinear dynamics of semiconductor lasers

Yu-Han Hung and Sheng-Kwang Hwang
Opt. Lett. 38(17) 3355-3358 (2013)