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Phase-preserving amplitude regeneration for a WDM RZ-DPSK signal using a nonlinear amplifying loop mirror

: Cvecek, K.; Sponsel, K.; Stephan, C.; Onishchukov, G.; Ludwig, R.; Schubert, C.; Schmauss, B.; Leuchs, G.

Postprint (509 KByte; PDF; )

DOI: 10.1364/OE.16.001923

	Optics Express 16 (2008), Nr.3, S.1923-1928 ISSN: 1094-4087

	Englisch
	Zeitschriftenaufsatz, Elektronische Publikation
	Fraunhofer HHI ()

Abstract
We propose a modified nonlinear amplifying loop mirror (NALM) for phase-preserving 2R regeneration of wavelength division multiplexed (WDM) return-to-zero differential phase-shift-keyed signals. As proof of principle the regeneration capability of this NALM setup has been investigated experimentally for two 10 Gbit/s wavelength channels. A significant eye-opening improvement and a negative power penalty of 1.2 dB have been observed in both channels.

: http://publica.fraunhofer.de/dokumente/N-71045.html