A photonic microwave frequency quadrupler using two cascaded intensity modulators with Repetitious optical carrier suppression

作者：Zhang Jian; Chen Hongwei; Chen Minghua^*; Wang Tianliang; Xie Shizhong

来源：IEEE Photonics Technology Letters, 2007, 19(13-16): 1057-1059.

DOI：10.1109/LPT.2007.899462

• microwave frequency quadrupler
• optical intensity modulator
• radio over fiber

We theoretically analyzed and experimentally demonstrated a novel 4- to 40-GHz frequency quadrupler for radio-over-fiber systems. By using an optical carrier suppression modulation scheme in two cascaded intensity modulators, four-fold microwave or millimeter wave signals are optically generated without the need for an optical and electrical notch filter to remove the residual carrier components. Moreover, the limitation of high drive voltage is greatly reduced through tandem intensity modulation with pi/2 phase shift between two driving signals.

• 出版日期2007-8
• 单位清华大学