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http://dx.doi.org/10.3807/JOSK.2014.18.6.646

Relative Intensity Noise Suppression of Spectrum-Sliced Channels Using Polarization-Independent Optical Modulators  

Kim, Hyung Hwan (Department of Electronics Engineering, Kwangwoon University)
Manandhar, Dipen (Department of Electronics Engineering, Kwangwoon University)
Lee, Jae Seung (Department of Electronics Engineering, Kwangwoon University)
Publication Information
Journal of the Optical Society of Korea / v.18, no.6, 2014 , pp. 646-649 More about this Journal
Abstract
Performances of spectrum-sliced channels are strongly affected by their relative intensity noise (RIN). We use polarization-independent optical modulators (PIOMs) for spectrum-sliced channels to suppress their RIN. The PIOM driven by a high sinusoidal voltage signal evenly redistributes optical frequency components in the spectral domain and reduces the RIN. It can be used at a broadband light source (BLS) output to produce spectrum-sliced channels having lower RIN values. Also, it can be used for each spectrum-sliced channel within each optical network unit (ONU). In our experiment, where 12.5-GHz-spaced spectrum-sliced channels are used in 1-GbE speed, the use of PIOM at the BLS output reduces the bit error rate (BER) of the spectrum-sliced channel by more than an order of magnitude. The use of PIOM within the ONU reduces the BER by approximately 3 orders of magnitude.
Keywords
Amplified spontaneous emission; Wavelength-division multiplexing; Optical communication systems;
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Times Cited By KSCI : 3  (Citation Analysis)
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