Optical sinc-shaped Nyquist pulses of exceptional quality

• DOI: 10.1038/ncomms3898
• Publication Date: 2013-12-04T12:49:17Z
• Authors: Marcelo A. Soto; Mehdi Alem; Mohammad Amin Shoaie; Armand Vedadi; Camille-Sophie Brès; Luc Thévenaz; Thomas Schneider
• Keywords: Sinc function; Nyquist–Shannon sampling theorem; Nyquist rate; Nyquist frequency

Sinc-shaped Nyquist pulses possess a rectangular spectrum, enabling data to be encoded in minimum spectral bandwidth and satisfying by essence the criterion of zero inter-symbol interference (ISI). This property makes them very attractive for communication systems since transmission rates can maximized while usage is minimized. However, most pulse-shaping methods reported so far have remained rather complex none has led ideal sinc pulses. Here method produce sinc-shaped high quality proposed based on direct synthesis rectangular-shaped phase-locked frequency comb. The highly flexible easily integrated systems, potentially offering substantial increase rates. Further, wide tunability also bring benefits many other fields, such as microwave photonics, light storage all-optical sampling. shape are they make optimal use available spectrum. Soto et al.develop scheme optical generation with quality, rectangular, combs.