Title :
Relative-intensity-noise reduction technique for frequency-converted radio-on-fiber system
Author :
Taguchi, Noritaka ; Tanaka, Shingo ; Kimura, Tsuneto ; Atsumi, Yasunori
Author_Institution :
Radiowave Technol. & Syst. Res. Dept., Optowave Lab. Inc., Kanagawa, Japan
Abstract :
A radio-on-fiber system is proposed that uses a frequency-multiplexing technique to reduce the relative intensity noise (RIN) caused by reflections at optical fiber connectors. It is based on the simultaneous transmission of IF and local oscillation (LO) frequency. Optimum LO frequency and optical modulation index that minimize RIN are investigated by experiments and calculations assuming the double and multiple reflection situations. The results agree well and RIN reduction of 17 dB is obtained in multiple reflection situations.
Keywords :
interference suppression; microwave frequency convertors; microwave photonics; optical interconnections; optical modulation; optical noise; oscillators; radio-over-fibre; subcarrier multiplexing; frequency-multiplexing technique; local oscillation frequency; microwave photonics; optical fiber connectors; optical modulation index; radio-on-fiber system; relative-intensity-noise reduction technique; Acoustic reflection; Connectors; Frequency dependence; Frequency modulation; Noise reduction; Optical distortion; Optical fibers; Optical modulation; Optical noise; Optical reflection; Microwave photonics; optical fiber connecting; optical noise; radio-on-fiber (ROF) system;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2005.863036
