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Efficient modulation cancellation using reflective SOAs

Duill, S.O.; Marazzi, L.; Parolari, P.; Brenot, R.; Koos, C.; Freude, W.; Leuthold, J.

Modulation cancellation and signal inversion are demonstrated within reflective semiconductor optical amplifiers. The effect is necessary to implement colorless optical network units for network end-users, where downstream signals need to be erased in order to reuse the carrier for upstream transmission. The results presented here indicate that reflective semiconductor optical amplifiers possess the perfect high-speed all-optical gain saturation characteristics to completely cancel the downstream modulation at microwatt optical power levels and are thus the prime candidate to be constituents of future optical network units. Theoretical considerations are supported by experiments that show the cancellation of signals with a 6 dB extinction ratio at 2.5 Gbit/s.

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Verlagsausgabe §
DOI: 10.5445/IR/1000044803
Veröffentlicht am 30.04.2018
DOI: 10.1364/OE.20.00B587
Zitationen: 28
Web of Science
Zitationen: 24
Zugehörige Institution(en) am KIT Institut für Photonik und Quantenelektronik (IPQ)
Publikationstyp Zeitschriftenaufsatz
Jahr 2012
Sprache Englisch
Identifikator ISSN: 1094-4087
KITopen-ID: 1000044803
Erschienen in Optics express
Band 20
Heft 26
Seiten B587-B594
Nachgewiesen in Scopus
Web of Science
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