5 Mar 2010 francois.vasey@cern.ch 1

Versatile Link

Versatile Link

F. Vasey, CERN On Behalf of the Versatile Link Project

Mini Opto Workshop, 5th March 2010

5 Mar 2010 francois.vasey@cern.ch 2

Versatile LinkVersatile Link Project Description

● Optical Physical layer linking front- to back-end● Bidirectional, ~5Gbps● Versatile

● Multimode (850nm) and Singlemode (1310nm) versions● Point to Point and Point to Multipoint architectures

● Matching SLHC tracker environment, plus others● Joint Project (CERN, Fermilab, Oxford, SMU)

FE BE

5 Mar 2010 francois.vasey@cern.ch 3

Versatile Link

Template TRx: SFP+ Transceiver

● Bi-directional Module with connector interface● Based upon an acknowledged standard

● Work with Industrial partner early-on

● MM 850nm & SM 1310nm versions

● Bitrate 2.5 – 10 Gbps

● Fast access to hardware

● Easy distribution to integrators

● Customization in second step

5 Mar 2010 francois.vasey@cern.ch 4

Versatile Link

Evolution: Front End Transceiver, VTRx

● Low Mass & Volume● Minimize material, avoid metals

● Non-magnetic, capable of operating in a magnetic field

● Requires replacement of ferrite bead used in laser bias network

● Bitrate determined by ASICs: 5 – 10 Gbps

● 850nm and 1310nm flavours

TOSA

ROSA

GBLD

GBTIA

TOSA

ROSA

GBLD

TOSA

TOSA

TRx

2Tx

5 Mar 2010 francois.vasey@cern.ch 5

Versatile Link

Evolution: Backend Transceiver

•Test Equipment Procured and Test Lab Configured•Evaluation of SFP+ 10 Gbps Transceivers @ 850 and 1310 nm (ongoing)•Evaluation of array components @850 and 1310nm (ongoing)•Partnership with Vendor for dense light engine Prototyping (ongoing)

SFP+ TRxSNAP12 4TRx or 12Rx

5 Mar 2010 francois.vasey@cern.ch 6

Versatile LinkThe Versatile Link Project Roadmap

● Project proposal submitted to ATLAS and CMS SLHC upgrade steering groups in Nov07

● Project endorsed by ATLAS and CMS in early 2008

● Kick-off Meeting 10 Apr 2008

● 3 phases of 18 months each● phase 1 proof of concept based on tentative specifications, partial tests and early prototypes

● Apr08 – Sep 09● Phase 1 closeout meeting 20th Sept

● Phase 2: feasibility demonstration based on complete specifications and exhaustive tests on final prototypes

● Oct 09 – Apr11● Specs and procedures● Tests and Results● List of COTS components and suppliers● Test-systems and Prototype custom components

● Phase 3: specifications freeze, pre-production readiness, technico-commercial actions● Apr11 – Oct12

5 Mar 2010 francois.vasey@cern.ch 7

Versatile LinkNext Steps (2010-2011)

● Optical Subassemblies (ROSA)

● Packages (VTRx, Light Engine)

● Specifications

● Testing (characterization, irradiation (SEU, TID, TF), comparison)

● Prototypes distribution for evaluation

FE BE

TOSA

ROSA

GBLD

GBTIA

5 Mar 2010 francois.vasey@cern.ch 8

Versatile LinkComponents and Subassemblies

TOSA

ROSA

GBLD

GBTIA

TOSA

ROSA

ROSAGBTIA

Phase 1 (2008-09)Proof of concept

Phase 2 (2009-11)Feasibility

5 Mar 2010 francois.vasey@cern.ch 9

Versatile LinkCredits and References

● CERN● Jan Troska, Luis Amaral, Stefanos Dris, Alberto Jimenez Pacheco, Sarah Seif el Nasr,

Christophe Sigaud, Sergio Silva, Csaba Soos, Pavel Stejskal, François Vasey

● Fermilab● Alan Prosser, Mark Bowden, John Chramowicz

● Oxford, IPAS, CERN● Todd Huffman, K. Dunn, Alex Gerardin, Cigdem Issever, S.C. Lee, Z. Liang, Z. Meng, A.

Povey, Tony Weidberg

● Southern Methodist University● Jingbo Ye, Andie Liu, Kent Liu, Annie Xiang

● The radiation tolerance of specific optical fibres exposed to 650 kGy(Si) of ionizing radiation, 2009 JINST 4 P0710, published

● The Versatile Link, A Common Project For Super-LHC, JINST_002P_0709, to be published

● https://espace.cern.ch/project-versatile-link/public/default.aspx