2R/3R optical grooming switch with time-slot interchange

Abstract

We demonstrate a regenerative optical grooming switch for interconnecting 130 Gbit/s and 40 Gbit/s networks with switching functionality in time, space and wavelength domain. Q-factors are above 21 dB.

Field Trial of WDM-OTDM Transmultiplexing employing Photonic Switch Fabric-based Buffer-less Bit-interleaved Data Grooming and All-Optical Regeneration

“…In this paper we present, for the first time, the results of two field experiments involving a WDM-OTDM grooming switch capable of providing time-slot, wavelength, and space switching [3]. The technologies used are highly scalable in terms of bit-rates and offer the potential of very low power consumption.…”

“…Fig. 1a depicts the grooming switch architecture [3], which interconnects up to three 43 Gb/s channels -selected using MEMS switch from lower bit-rate WDM domains -with an OTDM domain which carries 129 Gb/s (3x43G) bit-interleaved OTDM channels. It consists of three main building blocks, namely, WDM-OTDM with time-slot interchange (TSI), OTDM-WDM demultiplexing, and all-optical 2R regeneration.…”

An All-Optical Grooming Switch for Interconnecting Access and Metro Ring Networks [Invited]

“…Traffic grooming [12,13] is understood in this paper as the aggregation of low bitrate signals at one wavelength to a high bitrate signal at a different wavelength, and switching of this signal afterwards.…”

“…Time-slot interchanging [12] is the re-allocation of OTDM time slots of metro/core ring OTDM signals per wavelength.…”

Optical grooming switch with regenerative functionality for transparent interconnection of networks

“…between metro/access and metro/core at bit-rates of 40 Gbit/s and 130 Gbit/s, respectively [11]. The proposed switch integrates all the crucial functionalities that are currently provided by digital cross-connects (DXC), i.e.…”