KEYWORDS: Nonlinear optics, Distortion, Modulation, Signal to noise ratio, Digital signal processing, Transmitters, Complex systems, Nonlinear filtering, Filtering (signal processing), Signal processing
As network traffic increases continuously, advances in spectral efficiency with higher-order modulation formats, such as 64 and 256 quadrature amplitude modulation (64-QAM and 256-QAM, respectively), are expected. The device nonlinearity is a major obstacle in achieving a higher-order modulation which requires a high signal-power-to-noise ratio and a low waveform distortion. In this study, we analyze the characteristics of device nonlinearity and its impact on the performance of a coherent transceiver. Furthermore, we demonstrate a low-complexity nonlinear compensation that operates on a symbol rate basis and that can handle higher-order modulations such as 64-QAM or beyond.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.