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Sub-ROD Injector Status

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.

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Sub-ROD Injector Status

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  1. 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)

  2. Optical Link Notes • Currently we build with • Reflex Photonics SNAP12 • Emcore SNAP12 • Both specified @ 3.5 Gbps • Recent news/results • Still no delivery date for Reflex Photonics SNAP12 @ 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

  3. Optical Link Notes • Designing @ 6.25 Gbps and beyond • Hyperlynx SI software • Good for impedance estimation • Less useful eye patterns (2.5 - 6 GHz below)

  4. Optical Link Notes • Designing @ 6.25 Gbps and beyond • Measurements with AZ test board

  5. Optical Link Notes • Designing @ 6.25 Gbps and beyond • Vias degrade eye pattern • No difference in trace length or layer

  6. 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 speed @ 6.25 Gbps • Designer provides an electrical footprint on the PCB • RF mounts (wirebonds) the OSA • OE part and mounting cost is ~$350 / die

  7. Optical Link Notes

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

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

  10. 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

  11. ATCA/AMC Form Factor • Sub-rod injector ATCA card

  12. ATCA/AMC Form Factor • Testing with test ATCA backplane

  13. ATCA/AMC Form Factor • Details of test backplane

  14. ATCA/AMC Form Factor • Eventual testing in ATCA crate

  15. ATCA/AMC Form Factor • Eventual testing in ATCA crate

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