Title :
Orthogonal Single-Sideband Signal Generation Using Improved Sagnac-Loop-Based Modulator
Author :
Jianyu Zheng ; Lixian Wang ; Ze Dong ; Mu Xu ; Xin Wang ; Jianguo Liu ; Ninghua Zhu ; LaRochelle, Sophie ; Gee-Kung Chang
Author_Institution :
State Key Lab. on Integrated Optoelectron., Instn. of Semicond., Beijing, China
Abstract :
A novel microwave photonics technique that enables the modulation of orthogonal optical single-sideband (OSSB) by using an improved Sagnac-loop-based modulator is proposed and experimentally demonstrated. The dual-driving Mach-Zehnder modulator and polarization-maintaining fiber Bragg grating are integrated inside and outside the Sagnac loop, respectively, in order to realize the OSSB modulation and polarization-selective filtering. Therefore, the precisely defined orthogonal OSSB signal can be generated steadily at 20-GHz carrier frequency in the experiment.
Keywords :
Bragg gratings; integrated optoelectronics; microwave photonics; optical fibre communication; optical fibre filters; optical fibre polarisation; optical modulation; Sagnac-loop-based modulator; carrier frequency; dual-driving Mach-Zehnder modulator; frequency 20 GHz; microwave photonics; orthogonal single-sideband signal generation; polarization-maintaining fiber Bragg grating; polarization-selective filtering; Amplitude modulation; Microwave photonics; Optical fibers; Optical filters; Optical polarization; Orthogonal optical single-sideband modulation; Sagnac loop; polarization-maintaining fiber Bragg grating;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2351402
