Abstract:
:Sinc-shaped Nyquist pulses possess a rectangular spectrum, enabling data to be encoded in a minimum spectral bandwidth and satisfying by essence the Nyquist criterion of zero inter-symbol interference (ISI). This property makes them very attractive for communication systems since data transmission rates can be maximized while the bandwidth usage is minimized. However, most of the pulse-shaping methods reported so far have remained rather complex and none has led to ideal sinc pulses. Here a method to produce sinc-shaped Nyquist pulses of very high quality is proposed based on the direct synthesis of a rectangular-shaped and phase-locked frequency comb. The method is highly flexible and can be easily integrated in communication systems, potentially offering a substantial increase in data transmission rates. Further, the high quality and wide tunability of the reported sinc-shaped pulses can also bring benefits to many other fields, such as microwave photonics, light storage and all-optical sampling.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Soto MA,Alem M,Amin Shoaie M,Vedadi A,Brès CS,Thévenaz L,Schneider Tdoi
10.1038/ncomms3898subject
Has Abstractpub_date
2013-01-01 00:00:00pages
2898issn
2041-1723pii
ncomms3898journal_volume
4pub_type
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