Abstract
We report on migrating multiple-lane link into an L-band VCSEL-based WDM system. Experimental validation achieves successful transmission over 10 km of SMF at 4x14Gbps. Inter-channel crosstalk penalty is observed to be less than 0.5 dB and a transmission penalty around 1 dB. The power budget margin ranges within 6 dB and 7 dB.
Highlights
Over the past few years, the quick proliferation of Internet use and cloud computing applications has substantially increased the bandwidth needs in backbones but prominently in data processing centers (DPCs)[1]
In this paper we look, into highspeed, cost-efficient and power-efficient VCSELbased wavelength division multiplexing (WDM) system oriented towards shortrange optical fiber connectivity
Four L-band vertical-cavity surface-emitting lasers (VCSELs) are directly modulated with 4-PAM signal at 7Gbauds to generate a total data rate of 56Gbps
Summary
Over the past few years, the quick proliferation of Internet use and cloud computing applications has substantially increased the bandwidth needs in backbones but prominently in data processing centers (DPCs)[1]. FDR Infiniband generically specifies ports with 4 lanes with 14 Gbps data transmission speed each[4]. The need to scale to higher and bidirectional transmission capacities (bandwidths reaching 300Gbps by the end 2012/early 2013)[4] is accompanied by the demand to secure high density, low cost, efficiency and reliability.
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