Optical dispersion monitoring technique using double sideband subcarriers

被引：46

作者：

Dimmick, TE ^{[1
]}

Rossi, G ^{[1
]}

Blumenthal, DJ ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Opt Commun & Photon Networks Lab, Santa Barbara, CA 93106 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2000年 / 12卷 / 07期

基金：

美国国家科学基金会;

关键词：

dispersion measurement; fiber dispersion; subcarrier multiplexing; optical networks; wavelength division multiplexing; WDM systems monitoring;

D O I：

10.1109/68.853544

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A technique for measuring the accumulated dispersion affecting a digital optical signal without recovering the baseband was developed and experimentally demonstrated. This technique allows measurement of the accumulated dispersion independently of the data origin and transport history. The technique employs an amplitude-modulated double-sideband subcarrier applied to the signal at the transmitter and monitored at an arbitrary point in a link or network using a novel suppressed-sideband optical-tap technique. The phase difference between the upper and lower sidebands of the subcarrier signal is measured and used to compute the dispersion, A combined coarse and fine measurement realizes high accuracy and large dynamic-range dispersion monitoring.

引用

页码：900 / 902

页数：3

共 5 条

[1]

Agrawal G. P., 1992, FIBER OPTIC COMMUNIC

[2] A novel transmitter architecture for combined baseband data and subcarrier-multiplexed control links using differential Mach-Zehnder external modulators [J].