Sub-ROD Injector Status K. Johns, C. Armijo, J. Steinberg (U. Arizona) H. Chen, F. Lanni, J. Mead (BNL) L. Hervas (CERN) A. Meyer, A. Kielburg-Jeka, A. Straessner (Dresden) G. Perrot (LAPP) G. Blasetti, M. Citterio (INFN, Milano) D. Schamberger (SUNY, Stony Brook)

Optical Link Notes  Currently we build with Reflex Photonics SNAP12 Emcore SNAP12  Both 3.5 Gbps  Recent news/results Still no delivery date for Reflex Photonics 6.25 Gbps  Industry movement away from SNAP12? Both RP and Emcore 3.5 Gbps versions can run up to ~ 5 Gbps  Emcore shows better performance based on measured BER 2

Optical Link Notes  6.25 Gbps and beyond Hyperlynx SI software  Good for impedance estimation  Less useful eye patterns ( GHz below) 3

Optical Link Notes  6.25 Gbps and beyond Measurements with AZ test board 4

Optical Link Notes  6.25 Gbps and beyond  Vias degrade eye pattern  No difference in trace length or layer 5

Optical Link Notes  In order to move to higher optical density we are now designing with Reflex Photonics LightABLE OE OSA is an IC with 12 channel GaAs VCSEL or 12 channel GaAs PIN photodetector  Connected electrically via wire bonds  Connected optically via MT connector Present 6.25 Gbps Designer provides an electrical footprint on the PCB RF mounts (wirebonds) the OSA  OE part and mounting cost is ~$350 / die 6

Optical Link Notes 7

AMC Card using LOB 8  4 x 12 channels per AMC card Stratix IV has 48 transceiver 8.5 Gbps  3 AMC cards per ATCA (ROD)

AMC Card using LOB 9  4 x 12 channels per AMC card  Stratix IV has 48 transceiver 8.5 Gbps  3 AMC cards per ATCA (ROD)

ATCA/AMC Form Factor  Working plan is to build ROD (and ROS) cards on ATCA cards ROD receive modules in AMC format ROD injector transmit modules in AMC format  ATCA sub-ROD already exists (BNL)  ATCA sub-ROD injector now exists (AZ) ATCA sub-ROD injector can also be used to hold sub-ROD injector AMC card 10

ATCA/AMC Form Factor  Sub-rod injector ATCA card 11

ATCA/AMC Form Factor  Testing with test ATCA backplane 12

ATCA/AMC Form Factor  Details of test backplane 13

ATCA/AMC Form Factor  Eventual testing in ATCA crate 14

ATCA/AMC Form Factor  Eventual testing in ATCA crate 15