Lasers, Fiber Optics, and Communications

Optical signal-to-noise ratio monitoring based on four-wave mixing

[+] Author Affiliations
Mengchi Chen, Na Zhang, Shanhong You

Soochow University, School of Electronic and Information Engineering, No.1, Shizi Street, Suzhou 215006, China

Juanjuan Yang

Innolight Technology Corporation, Suzhou Industrial Park, Suzhou 215123, China

Opt. Eng. 54(5), 056109 (May 27, 2015). doi:10.1117/1.OE.54.5.056109
History: Received February 13, 2015; Accepted April 22, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Mengchi Chen ; Juanjuan Yang ; Na Zhang and Shanhong You
"Optical signal-to-noise ratio monitoring based on four-wave mixing", Opt. Eng. 54(5), 056109 (May 27, 2015). ; http://dx.doi.org/10.1117/1.OE.54.5.056109


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