Zhang Fangzheng, Wu Jian, Fu Songnian, Xu Kun, Li Yan, Hong Xiaobin, Shum Ping, Lin Jintong
Key Laboratory of Information Photonics and Optical communications, Ministry of Education in China, Beijing University of Posts and Telecommunications, Beijing, 100086, China.
Opt Express. 2010 Jul 19;18(15):15870-5. doi: 10.1364/OE.18.015870.
We propose and experimentally demonstrate a scheme to simultaneously realize multi-channel centimeter wave (CMW) band and millimeter wave (MMW) band ultra-wideband (UWB) monocycle pulse generation using four wave mixing (FWM) effect in a highly nonlinear photonic crystal fiber (HNL-PCF). Two lightwaves carrying polarity-reversed optical Gaussian pulses with appropriate time delay and another lightwave carrying a 20 GHz clock signal are launched into the HNL-PCF together. By filtering out the FWM idlers, two CMW-band UWB monocycle signals and two MMW-band UWB monocycle signals at 20 GHz are obtained simultaneously. Experimental measurements of the generated UWB monocycle pulses at individual wavelength, which comply with the FCC regulations, verify the feasibility and flexibility of proposed scheme for use in practical UWB communication systems.
