David AbramsonNovember 21, 2002

Progress Report (November 14 - 20, 2002)

• “Rev. B” board submitted for fabrication.• Receiver board alignment tolerance

measurements completed.• Transmitter board alignment tolerance

attempted.– Problem with VCSEL identification– Possibly smoked VCSEL by applying too much

bias current– Lifted a pad on the board when switching parts

Progress: HFE 4080-321 TO-46

David AbramsonNovember 21, 2002

Planned Work (November 21 – 27, 2002)

• Build Rev. B boards• Test Rev. B boards with

connectorized parts• Start alignment testing for

Rev. B boards

Planned work:

David AbramsonNovember 21, 2002

Gantt Chart

David AbramsonNovember 21, 2002

RX Alignment Eye Diagrams

Best Eye

X axis extreme

Y axis extreme

David AbramsonNovember 21, 2002

RX Alignment Results

Alignment Detection Graph

-400

-300

-200

-100

0

100

200

300

400

-200 -100 0 100 200 300 400