A new all-optical broadband phase modulator of subcarrier in radio over fiber (RoF) system has been proposed. This modulator is based on cross phase modulation (XPM) in fiber. In this approach the stability of the subcarrier modulation is improved significantly as most of the disturbance introduced by environment variance can be cancelled when the lightwaves interfere in PD. A proof-of-concept experiment demonstrates the feasibility of the modulator.

Date Published: 11 November 2008
PDF: 7 pages
Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71364D (11 November 2008); doi: 10.1117/12.803223

Published in SPIE Proceedings Vol. 7136:
Optical Transmission, Switching, and Subsystems VI
Ken-ichi Kitayama; Pierpaolo C. Ghiggino; Kim Roberts; Yikai Su, Editor(s)