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Group 2 - Project UpdateApril 1, 2004
Tyler Helble
Progress Report
Finalized TX/RX Board Design Ordered TX/RX Boards from Express PCB Ordered Passives, VCSEL, and PD Soldered components Tested TX/RX Aggressive and Non-
Aggressive Revised Gantt Chart Published Midterm Report
TX/RX Board Design
Aggressive DesignStandard Design
PCB Board – Solder Side
PCB Board – Ground Plane
PCB Board – VCSEL, PD, Passives
PD Hamamatsu S5973VCSEL Lasermate
Hamamatsu S5973
PCB Board – Soldered Components
PD
VCSEL
TX/RX Test Results
Initial Tests Revealed no power to TX chips. Board was getting hot.
Found solder link between power and ground, etched it out.
Retested and obtained decent eye results using the probe. (VCSEL not attached yet)
TX/RX Test Results – using probe
TX/RX Test Results
Received visible eye on Agilent osciliscope.
TX/RX Test Results
RX board powered up, chips receiving power Aligned fiber using XYZ stage in lab No signal from the SMA connector Tried to detect signal with probe, no luck
TX/RX Test Results
Using the XYZStage to align The fiber and PD
Future Plans
Solder VCSEL and test today Test PD separately to double check pins/light
detection Pray
Jan F e b M arch Ap ril
Pro je ct Ste p s: 1 -10 11 -2 0 21 -3 1 1 -10 11 -2 0 21 -2 9 1 -10 11 -2 0 21 -3 1 1 -10 11 -2 0 21 -3 0
ba ckg roun d resea rch (Jan 8 - Ap r 13 )
test eva l boa rd (F eb 5 - F eb 11 )
O p tica l lin k b udge t (F eb 10 - F e b 19 )
C hoo se pa rts (F eb 1 1 - F e b 19 )
O rde r VC SEL /PD 's (F e b 19 -F eb 2 5 )
Bu ild test boa rd (F eb 1 3 - F e b 20 )
D esign Sche ma tic (F eb 1 5 - F eb 22 )
Boa rd des ig n (F eb 19 - Ma rch 2 )
D esign rev iew (F eb 26 - Ma rch 4 )
O rde r PC B's (Ma rch 5 - Ma rch 14 )
Sp r ing Bre ak (Ma rch 5 - Ma rch 1 4 )
C onstruct Boa rd (Ma rch 14 - Ma rch 21 )
Tes t ing/Troubles hoot ing (M arc h 21 - M arc h 28)
D esign Mo d ifica tions (Ap r il 1 - Ap r il 7 )
Bu ild second boa rd (Ap r il 7 - Ap r il 1 3 )
F in a l re po rt (Ap r il1 3 - Ap r il 21 )
T est (F eb 5 )
Mid te rm R ep o rt (Ma rch 19 )
F in a l R e po rt (Ap r il 2 1 )
Group 2 Gantt Chart - 1 Gbps Optical Ethernet
Pro jected T imeC omp le tedO ve rd ue
Even t