The radio-over-fiber (ROF) system, which brings the huge capacity of optical communication and the agility of wireless access together, will be a perfect technology in the future broadband wireless access services, and it has been a research hot spot in optical fiber communication. Optical mm-wave generation is one of the key technology in ROF system. In this thesis,several best clothes blog schemes of mm-wave generation and transmission are proposed and The results obtained are as follows:Firstly, two schemes of 40GHz quadruple mm-wave generation are proposed and realized: scheme 1:odd order sidebands are suppressed by adjusting the DC bias of the discount wedding prom dresses Mach-Zahnder Modulator (LN-MZM) to be 3.9V, then we use Fiber Bragg Grating ( chi hair straightener) filter to filter out the optical carrier, two second order sidebands beat to generate 40GHz quadruple mm-wave, the downlink Lacoste Polo Shirts data transmits 40km in fiber with less than Lacoste Shirts power penalty in the experiment. demonstrated. Scheme2: we also realize the modulation format which odd order sidebands and carrier are suppressed simultaneously by adjusting the DC bias to be 0V and RF voltage to be 6.12V and also the phase difference to be 90. Two sceond order sidebands are left to generate 40GHz mm-wave signal. We have two different method to realize data signal upconversion: firstly, we use the data signal to modulate the directly modulated laser; Secondly, the intensity modulator is modulated by the data signal.
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