Title :
Widely-Tunable and Background-Free Ultra-Wideband Signals Generation Utilizing Polarization Modulation-Based Optical Switch
Author :
Yuanxin Du ; Jianyu Zheng ; Lixian Wang ; Hui Wang ; Ninghua Zhu ; Jianguo Liu
Author_Institution :
State Key Lab. on Integrated Optoelectron., Instn. of Semicond., Beijing, China
Abstract :
A simple widely-tunable and background-free ultra-wideband (UWB) pulse shaper by utilizing the polarization modulation-based optical switch is proposed and demonstrated. By virtue of the excellent switch isolation and the complementarity between two inverted baseband signals output from the optical switch, the local oscillator leakage signal and the low frequency components of the obtained UWB signals are suppressed very well. The UWB pulse with center frequency up to 28 GHz is generated.
Keywords :
light polarisation; microwave photonics; optical communication equipment; optical modulation; optical pulse generation; optical pulse shaping; optical switches; ultra wideband communication; UWB pulse shaper; UWB signal suppression; background-free ultrawideband pulse shaper; background-free ultrawideband signal generation; inverted baseband signal output; local oscillator leakage signal; low frequency components; polarization modulation-based optical switch; switch isolation; widely-tunable ultrawideband pulse shaper; widely-tunable ultrawideband signal generation; Frequency modulation; Optical fibers; Optical polarization; Optical switches; Photonics; Microwave photonics; polarization modulation; ultra-wideband radio;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2238526
