OSNR monitoring technique using polarization-nulling method

J. H. Lee, D. K. Jung, C. H. Kim, Y. C. Chung

Research output: Contribution to journalArticlepeer-review

213 Scopus citations


We report on the simple technique for monitoring the optical signal-to-noise ratios (OSNRs) of wavelength-division-multiplexed (WDM) signals. This technique, based on the polarization-nulling method, was implemented simply by using a rotating quarter-wave plate and rotating linear polarizer. However, the performance of this technique could be affected by nonlinear birefringence and polarization-mode dispersion (PMD). The result shows that this technique is suitable for monitoring the OSNRs of high-speed (>10-Gb/s) WDM signals transported over the fiber link with low PMD.

Original languageEnglish
Pages (from-to)88-90
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number1
StatePublished - Jan 2001


Dive into the research topics of 'OSNR monitoring technique using polarization-nulling method'. Together they form a unique fingerprint.

Cite this