Sub rod injector status
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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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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

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


Optical link notes1

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)


Optical link notes2

Optical Link Notes

  • Designing @ 6.25 Gbps and beyond

    • Measurements with AZ test board


Optical link notes3

Optical Link Notes

  • Designing @ 6.25 Gbps and beyond

    • Vias degrade eye pattern

    • No difference in trace length or layer


Optical link notes4

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


Optical link notes5

Optical Link Notes


Amc card using lob

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)


Amc card using lob1

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)


Atca amc form factor

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


Atca amc form factor1

ATCA/AMC Form Factor

  • Sub-rod injector ATCA card


Atca amc form factor2

ATCA/AMC Form Factor

  • Testing with test ATCA backplane


Atca amc form factor3

ATCA/AMC Form Factor

  • Details of test backplane


Atca amc form factor4

ATCA/AMC Form Factor

  • Eventual testing in ATCA crate


Atca amc form factor5

ATCA/AMC Form Factor

  • Eventual testing in ATCA crate


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