Details

Autor(en) / Beteiligte

• Lowery, Arthur J.
• Leimeng Zhuang
• Corcoran, Bill
• Chen Zhu
• Yiwei Xie

Titel

Photonic Circuit Topologies for Optical OFDM and Nyquist WDM

Ist Teil von

• Journal of lightwave technology, 2017-02, Vol.35 (4), p.781-791

Ort / Verlag

IEEE

Erscheinungsjahr

2017

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• Photonic circuits are the key to advanced functionality in future optical systems, as they efficiently process terabit/s data streams. This paper reviews how photonic circuit topologies have evolved to support high-spectral efficiency modulation formats, including: all-optical optical frequency division multiplexing (AO-OFDM), discrete Fourier transform spread OFDM (DFT-S-OFDM), Nyquist wavelength division multiplexing, (NWDM), orthogonal time division multiplexing (OrthTDM, OTDM), chirped-OFDM, and quasi-Nyquist signals. The importance of the order of components such as modulators, delays, and filters within these circuits is stressed, as simple changes to the circuit topology have significant impacts on the spectra of the signals, and the required bandwidths of the modulators.