An intensity modulation and coherent balanced detection intersatellite microwave photonic link using polarization direction control

被引：8

作者：

Li, Xuan ^{[1
]}

Zhu, Zihang ^{[1
]}

Zhao, Shanghong ^{[1
]}

Li, Yongjun ^{[1
]}

Han, Lei ^{[1
]}

Zhao, Jing ^{[1
]}

机构：

[1] Coll Informat & Nav, Xian 710077, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2014年 / 56卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Intersatellite link; Microwave photonic; Signal to noise and distortion ratio; OPTICAL PREAMPLIFIER; DYNAMIC-RANGE; OPTIMIZATION; SYSTEM;

D O I：

10.1016/j.optlastec.2013.08.021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple approach for high loss intersatellite microwave photonic link with intensity modulation and coherent balanced detection is proposed. In the transmitter, the double sideband-suppressed carrier (DSB-SC) modulated optical signal and optical carrier (OC) are combined by employing a polarization combiner to chose and control the signals polarization directions, while in the receiver, they are selected respectively by using a polarization splitter for they have orthogonal polarization directions. The separated DSB-SC signal and OC put into balanced detectors and the coherent detection is realized without a local oscillator (LO). At the output, the fundamental signal is augmented and the third-order distortion is suppressed for the DSB-SC modulation, the second-order distortion is removed for the balanced detection and the noise is reduced for the polarization direction control. The signal to noise and distortion ratio (SNDR) can be optimized by adjusting the power of OC and modulation index. The simulation results show that, a SNDR higher than 30 dB can be obtained for the proposed method, which is in agreement with the theoretical analysis. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：362 / 366

页数：5

共 15 条

[1] Optically Filtered Microwave Photonic Links for RF Signal Processing Applications [J].