KIT | KIT-Bibliothek | Impressum | Datenschutz

Flexible terabit/s Nyquist-WDM super-channels using a gain-switched comb source

Pfeifle, Joerg; Vujicic, Vidak; Watts, Regan T.; Schindler, Philipp C.; Weimann, Claudius; Zhou, Rui; Freude, Wolfgang; Barry, Liam P.; Koos, Christian

Abstract:
Terabit/s super-channels are likely to become the standard for next-generation optical networks and optical interconnects. A particularly promising approach exploits optical frequency combs for super-channel generation. We show that injection locking of a gain-switched laser diode can be used to generate frequency combs that are particularly well suited for terabit/s super-channel transmission. This approach stands out due to its extraordinary stability and flexibility in tuning both center wavelength and line spacing. We perform a series of transmission experiments using different comb line spacings and modulation formats. Using 9 comb lines and 16QAM signaling, an aggregate line rate (net data rate) of 1.296 Tbit/s (1.109 Tbit/s) is achieved for transmission over 150 km of standard single mode fiber (SSMF) using a spectral bandwidth of 166.5 GHz, which corresponds to a (net) spectral efficiency of 7.8 bit/s/Hz (6.7 bit/s/Hz). The line rate (net data rate) can be boosted to 2.112 Tbit/s (1.867 Tbit/s) for transmission over 300 km of SSMF by using a bandwidth of 300 GHz and QPSK modulation on the weaker carriers. For the reported ne ... mehr

Open Access Logo


Volltext §
DOI: 10.5445/IR/1000045939
Originalveröffentlichung
DOI: 10.1364/OE.23.000724
Scopus
Zitationen: 27
Web of Science
Zitationen: 26
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Institut für Photonik und Quantenelektronik (IPQ)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1094-4087
urn:nbn:de:swb:90-459396
KITopen-ID: 1000045939
HGF-Programm 43.23.03 (POF III, LK 01)
Erschienen in Optics Express
Band 23
Heft 2
Seiten 724-738
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Web of Science
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page