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Optical Engineering

Optical signal-to-noise ratio monitoring based on four-wave mixing
Author(s): Mengchi Chen; Juanjuan Yang; Na Zhang; Shanhong You
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Paper Abstract

The transmission rates of the next generation intelligent optical networks are high, and the use of dense wavelength division multiplexing and a reconfigurable optical add-drop multiplexer makes the traditional optical signal-to-noise ratio (OSNR) monitoring techniques unsuitable. Hence, we investigated the OSNR monitoring method based on the nonlinear effect of four-wave mixing (FWM), which applies to the next generation intelligent optical networks. Due to FWM in a highly nonlinear fiber, a converted wave is generated and its power is dependent on the OSNR of the input signal. Two scenarios are studied, single-pump and orthogonal-polarized dual-pump. Under the condition of the given fiber length and the appropriate pump power, the monitoring ranges of OSNR could be extended to 23 and 30 dB for single-pump and orthogonal-polarized dual-pump, respectively.

Paper Details

Date Published: 27 May 2015
PDF: 6 pages
Opt. Eng. 54(5) 056109 doi: 10.1117/1.OE.54.5.056109
Published in: Optical Engineering Volume 54, Issue 5
Show Author Affiliations
Mengchi Chen, Soochow Univ. (China)
Juanjuan Yang, InnoLight Technology Corp. (China)
Na Zhang, Soochow Univ. (China)
Shanhong You, Soochow Univ. (China)

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