Power efficient subcarrier modulation for intensity modulated channels
Artikel i vetenskaplig tidskrift, 2010

We compare formats for optical intensity modulation limited by thermal noise with the assumption of having ideal devices. At the same bitrate and bandwidth, a hitherto unknown format turns out to be more power efficient than known formats. This new modulation, which is a hybrid between on-off keying and phase-shift keying, belongs to the subcarrier modulation family. At asymptotically high signal-to-noise ratios, this hybrid scheme has a 1.2 dB average electrical power gain and 0.6 dB average optical power gain compared to OOK, while it has a 3.0 dB average electrical power gain and 2.1 dB average optical power gain compared to subcarrier QPSK.

Subcarrier

'Modulation

Direct detection

phase-shift keying'

Intensity Modulation

Författare

Johnny Karout

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Erik Agrell

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Optics Express

1094-4087 (ISSN)

Vol. 18 17 17913-17921

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Annan elektroteknik och elektronik

DOI

10.1364/OE.18.017913

Mer information

Senast uppdaterat

2018-03-29