progress report (november 14 - 20, 2002)
DESCRIPTION
Progress Report (November 14 - 20, 2002). Progress:. HFE 4080-321 TO-46. “Rev. B” board submitted for fabrication. Receiver board alignment tolerance measurements completed. Transmitter board alignment tolerance attempted. Problem with VCSEL identification - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Progress Report (November 14 - 20, 2002)](https://reader035.vdocuments.mx/reader035/viewer/2022062801/5681442c550346895db0c5bf/html5/thumbnails/1.jpg)
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
![Page 2: Progress Report (November 14 - 20, 2002)](https://reader035.vdocuments.mx/reader035/viewer/2022062801/5681442c550346895db0c5bf/html5/thumbnails/2.jpg)
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:
![Page 3: Progress Report (November 14 - 20, 2002)](https://reader035.vdocuments.mx/reader035/viewer/2022062801/5681442c550346895db0c5bf/html5/thumbnails/3.jpg)
David AbramsonNovember 21, 2002
Gantt Chart
![Page 4: Progress Report (November 14 - 20, 2002)](https://reader035.vdocuments.mx/reader035/viewer/2022062801/5681442c550346895db0c5bf/html5/thumbnails/4.jpg)
David AbramsonNovember 21, 2002
RX Alignment Eye Diagrams
Best Eye
X axis extreme
Y axis extreme
![Page 5: Progress Report (November 14 - 20, 2002)](https://reader035.vdocuments.mx/reader035/viewer/2022062801/5681442c550346895db0c5bf/html5/thumbnails/5.jpg)
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