Optical Vector Network Analyzer with an Improved Dynamic Range Based on a Polarization Multiplexing Electro-Optic Modulator

We present a new method to achieve an optical vector network analyzer （OVNA） based on a polarization multi- plexing electro-optic modulator （PM-EOM） without an optical bandpass filter. Optical single sideband （OSSB） modulated signals with a tunable optical carrier-sideband ratio （OCSR） are obtained...

Full description

Saved in:
Bibliographic Details
Published inChinese physics letters Vol. 34; no. 5; pp. 63 - 67
Main Author 王琪 王文亭 陈伟 刘建国 祝宁华
Format Journal Article
LanguageEnglish
Published 01.05.2017
Subjects
偏振复用
偏置电压
光纤布拉格光栅
动态范围
带通滤波器
电光调制器
矢量网络分析仪
调制信号
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/34/5/054205

Cover

More Information
Summary:We present a new method to achieve an optical vector network analyzer （OVNA） based on a polarization multi- plexing electro-optic modulator （PM-EOM） without an optical bandpass filter. Optical single sideband （OSSB） modulated signals with a tunable optical carrier-sideband ratio （OCSR） are obtained at the output of the PM- EOM. The OCSR can be flexibly tuned by controlling bias voltages of the PM-EOM. The dynamic range of the OVNA is expanded by taking the improvement of the OCSR into account. The transmission response of an optical device under test （ODUT） is measured based on one-to-one mapping from optical domain to electrical domain. By optimizing the OCSR of the OSSB modulated signals, the dynamic range of the OVNA can be effectively improved with 3.TdB. An analytical model is derived to describe the transfer function of the ODUT. The magnitude and phase responses of a fiber Bragg grating are characterized with a large dynamic range.
Bibliography:Qi Wang1,2, Wen-Ting Wang1,2, Wei Chen1, Jian-Guo Liu1, Ning-Hua Zhu1（ 1Laboratory of Solid State Optoelectronic Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 ;2 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences Beijing 100049）
We present a new method to achieve an optical vector network analyzer （OVNA） based on a polarization multi- plexing electro-optic modulator （PM-EOM） without an optical bandpass filter. Optical single sideband （OSSB） modulated signals with a tunable optical carrier-sideband ratio （OCSR） are obtained at the output of the PM- EOM. The OCSR can be flexibly tuned by controlling bias voltages of the PM-EOM. The dynamic range of the OVNA is expanded by taking the improvement of the OCSR into account. The transmission response of an optical device under test （ODUT） is measured based on one-to-one mapping from optical domain to electrical domain. By optimizing the OCSR of the OSSB modulated signals, the dynamic range of the OVNA can be effectively improved with 3.TdB. An analytical model is derived to describe the transfer function of the ODUT. The magnitude and phase responses of a fiber Bragg grating are characterized with a large dynamic range.
11-1959/O4
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/34/5/054205