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http://dx.doi.org/10.3807/KJOP.2011.22.3.122

The Optical Filtering Effect of a RSOA-based Broadband Light Source in a Bidirectional WDM-PON System  

Choi, Bo-Hun (Department of Materials Physics, Dong-A University)
Publication Information
Korean Journal of Optics and Photonics / v.22, no.3, 2011 , pp. 122-128 More about this Journal
Abstract
The AWG-filtering effect was investigated on a bidirectional 100-GHz-channel-spacing WDM-PON link using spectrum-sliced and RSOA-amplified light sources for downstream signals and a wavelength reuse technique for upstream signals. Signal performances of three different filtering AWGs, including Gaussian, trapezoidal, and rectangular types, were compared on link transmission with fiber nonlinear effects. As an extinction ratio of a downstream signal varied, the effect for both directional signals was analyzed and optimized. It was found that there was an optimal pass bandwidth of an AWG for the balance between relative intensity noise decrement and cross phase modulation noise increment as the bandwidth got wider.
Keywords
Passive optical network; Semiconductor amplifier; Optical fiber communications; Wavelength-division multiplexing;
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