Demodulation Method Based on The 3&times;3 Optical Fiber Coupler

ZHANG Xiao-jun; KANG Chong; SUN Jing-hua

doi:10.3788/fgxb20133405.0665

您当前的位置：

首页 >

文章列表页 >

Demodulation Method Based on The 3×3 Optical Fiber Coupler

更新时间：2020-08-12

- Demodulation Method Based on The 3×3 Optical Fiber Coupler
- Chinese Journal of Luminescence Vol. 34, Issue 5, Pages: 665-671(2013)
- 作者机构：
  
  哈尔滨工程大学理学院,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133405.0665
  CLC： TN929.11
- Received：13 January 2013，
  
  Revised：02 April 2013，
  
  Published：10 May 2013
- 稿件说明：
移动端阅览
张晓峻, 康崇, 孙晶华. 3×3光纤耦合器解调方法[J]. 发光学报, 2013,34(5): 665-671

ZHANG Xiao-jun, KANG Chong, SUN Jing-hua. Demodulation Method Based on The 3×3 Optical Fiber Coupler[J]. Chinese Journal of Luminescence, 2013,34(5): 665-671
张晓峻, 康崇, 孙晶华. 3×3光纤耦合器解调方法[J]. 发光学报, 2013,34(5): 665-671 DOI： 10.3788/fgxb20133405.0665.

ZHANG Xiao-jun, KANG Chong, SUN Jing-hua. Demodulation Method Based on The 3×3 Optical Fiber Coupler[J]. Chinese Journal of Luminescence, 2013,34(5): 665-671 DOI： 10.3788/fgxb20133405.0665.

摘要

介绍了33光纤耦合器输出解调方法的原理

推导出了33光纤耦合器输出解调信号的数学表达式

给出了33光纤耦合器输出解调算法的解调频率范围

分析了外界干扰信号、耦合器的不对称性、以及信号中存在高次谐波对解调结果的影响。分析结果表明:该方法有比较宽的频率解调范围

能够克服温度变化等外界因素的干扰

能够消除33耦合器3个输出端存的偏差对解调结果的影响以及在信号中存在高次谐波的影响。该方法具有性能稳定、不需要载波、不需要稳定的工作点以及抗干扰能力强等优点

具有较强的实用性和可行性

对解调电路的数字化设计具有理论指导意义。

Abstract

The principle of 33 fiber coupler output demodulation is introduced

and its mathematical expression is derived. The demodulation frequency range of its algorithm is exploited. The effects from interference signals

asymmetry of coupler and higher harmonic on demodulation result are analyzed. The results show that this method has a wide range of frequency demodulation

and can avoid the interference of outside factors such as temperature

and eliminate the effects which are from deviation of three output sides of 33 coupler on demodulation and higher harmonic. It has advantages of stable performance

carrier and stable working point not needed

and strong anti-jamming capability

etc.

So it has well practicability

feasibility and theoretical guidance meaning for digital demodulation circuit design.

关键词

Keywords

references

Koo K P, Tveten A B. Passive stabilization scheme for fiber interferometers using (33) fiber directional couplers [J]. Appl. Phys. Lett., 1982, 41(7):616-618.[2] Sheem S K, Giallorenzi T G, Koo K P. Optical techniques to solve the signal problem in fiber interferometers [J]. Appl. Opt., 1982, 21(4):689-693.[3] Hong G W, Jia B, Hua Z Y. A novel passive demodulator for fiber optic interferometer with 33 coupler [J]. Chin. J. Sci. Instrum (仪器仪表学报), 2006, 27(4):341-344 (in Chinese).[4] Huang T H, Cao W H. Fiber coupler and its applications [J]. Electro-Opt. Technol. Appl.(光电技术应用), 2006, 21(6):37-41 (in Chinese).[5] Brown D A, Cameron B, Keolian R M, et al. A symmetric 33 coupler based demodulator for fiber optic interferometric sensors [J]. SPIE, 1991, 1584:328-335.[6] Jiang Y, Chen S F. Direct demodulation for signal from fiber grating sensors by interferometer based on 33 coupler [J]. Acta Optica Sinica (光学学报), 2004, 24(11):1487-1490 (in Chinese).[7] Zhang Y B, Dou Z, Cao J N. 3-output demodulation of interferometric fiber-optic hydrophone [J]. J. Harbin Eng. Univ.(哈尔滨工程大学学报), 2004, 25(6):732-735 (in Chinese).[8] Zhao Y C, Wang H, Jian S S. Mach-Zehnder optical fiber interferometer homodyne scheme [J]. Opt. Commun. Technol.(光通信技术), 2001, 18(3):187-191 (in Chinese).[9] Dandridge A, Wang C C, Tveten A B, et al. Performance of 33 couplers in fiber optic sensor systems [J]. SPIE, 1994, 2360:549-552.[10] Chen D S, Xiao L, Cui J, et al. Analysis of 33 coupler demodulation method for optical fiber interferometer and polarization fading [J]. J. OptoelctronicsLaser (光电子激光), 2007, 18(5):523-525 (in Chinese).[11] Jiang Y. Wavelength division multiplexing addressed four-element fiber optical laser hydrophone array [J]. Appl.Opt., 2007, 46(15):2939-2948.[12] Wang J H, Meng J, Chen C H, et al. Design scheme of intelligent instrument interface and digital processing system [J]. Chin. J. Sensors and Actuators (传感技术学报), 2005, 18(1):284-288 (in Chinese).[13] Jiang Y, Lou Y M, Wang H W. Software demodulation for 33 coupler based fiber optic interferometer [J]. Acta Photonica Sinica (光子学报), 1998, 27(2):152-155 (in Chinese).[14] Gao X M. Evolution of fiber optic hydrophones and hydrophone arrays [J]. Optical Fiber & Electric Cable and Their Applications (光纤与电缆及其应用技术), 1996, 29(1):48-53 (in Chinese).[15] Sheem S K. Optical fiber interferometers with 33 directional couplers analysis [J]. J. Appl. Phys., 1982, 52(6):1267-1277.[16] Todd M D, Seaver M, Bucholtz F. Improved, operationally-passive interferometric demodulation method using 33 coupler [J]. Electron. Lett., 2002, 38(15):784-786.[17] Shen L, Ye X F, Li Z N. Research on demodulation of interferometric fiber optic hydrophone [J]. Semiconductor Optoelectronics (半导体光电), 2001, 22(2):105-106 (in Chinese).

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Demodulation Technology of Distributed Feedback Fiber Laser Sensor Based on 3×3 Coupler

Related Author

MAO Xin

HUANG Jun-bin

GU Hong-can

Related Institution

Department of Weaponry Engineering, Naval University of Technology

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰

Demodulation Method Based on The 3×3 Optical Fiber Coupler

DOI：10.3788/fgxb20133405.0665

摘要

Abstract

关键词

Keywords

references