Title :
1.25 Gbps Optical Data Channel Up-conversion in 20 GHz-Band via a Frequency-Doubling Optoelectronic Oscillator for Radio-Over-Fiber Systems
Author :
Shin, Myunghun ; Kumar, Prem
Author_Institution :
Center for Photonic Commun. & Comput., Evanston
Abstract :
We proposed an integration of a local oscillator and an optical microwave generator for a radio-over-fiber (ROF) system. A frequency-doubling optoelectronic oscillator (FD-OEO) operates not only as a low-phase-noise optical local oscillator, but also as an optical signal generator of optical carrier suppression (OCS) modulation. We experimentally demonstrate up-conversion of a 1.25-Gbps optical data channel in 20 GHz-band on an OCS format. The phase noise for the optical microwave carrier is under -100 dBc/Hz at the 10 kHz offset form the 20 GHz carrier and the up-converted signal can reach over 90 km of single mode fiber without serious dispersion penalty.
Keywords :
microwave oscillators; optical fibre dispersion; optical harmonic generation; optoelectronic devices; phase noise; radio-over-fibre; bit rate 1.25 Gbit/s; frequency 20 GHz; frequency-doubling optoelectronic oscillator; low-phase-noise optical local oscillator; optical carrier suppression modulation; optical data channel up-conversion; optical microwave carrier; optical microwave generator; optical signal generator; phase noise; radio-over-fiber systems; single mode fiber; Amplitude modulation; Fiber nonlinear optics; Frequency; Local oscillators; Microwave generation; Nonlinear optics; Optical devices; Optical modulation; Optical noise; Optical transmitters; All-optical frequency up-conversion; optical carrier suppression modulation; optical millimeter generation; optoelectronic oscillator; radio over fiber;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380219
