Performance analysis on an instantaneous microwave frequency measurement with tunable range and resolution based on a single laser source

被引：18
作者：
Li, Jing [1 ,2 ]
Ning, TiGang [1 ,2 ]
Pei, Li [1 ,2 ]
Jian, Wei [1 ,2 ]
Zheng, Jingjing [1 ,2 ]
You, Haidong [1 ,2 ,3 ]
Chen, Hongyao [1 ,2 ]
Zhang, Chan [1 ,2 ]
机构：
[1] Beijing Jiaotong Univ, Key Lab All Opt Network & Adv Telecommun Netw, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China
[3] Qingdao Agr Univ, Sci & Informat Coll, Qingdao 266109, Shandong, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2014年 / 63卷
关键词：
Instantaneous microwave measurement; Measurement range; Resolution; ADJUSTABLE MEASUREMENT RANGE; PHASE MODULATION; TRANSMISSION; PHOTONICS; SYSTEM;
D O I：
10.1016/j.optlastec.2014.04.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A prototype of instantaneous microwave frequency measurement with tunable range and resolution based on a single laser source is proposed and analyzed. In the proposal, one polarization modulator (PolM) followed by a section of dispersion compensating fiber (DCF), a polarization beam splitter (PBS) and two photodiodes (PDs) are used as the key component. To obtain an amplitude comparison function (ACF), the lightwave from a laser source should be first oriented at an angle of alpha (alpha not equal 0 degrees or 90 degrees) relative to one principal axis of PolM. After transmission of DCF, the PBS is connected with principal axis +/- 45 degrees to that of PolM. Then, by monitoring and processing the microwave power of two optical paths via two PDs, frequency of microwave signal can be easily estimated. It is found that the measurement range can be stretched by simply adjusting alpha. Its performance is first analyzed by theory and then verified by simulations. Since the proposal is characteristic with its tunable measurement range and resolution, a frequency measurement range as large as 13.2 GHz with a measurement resolution of +/- 0.15 GHz is obtained. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：54 / 61
页数：8
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