connector separation experimental design -...
TRANSCRIPT
Connector Separation
Experimental Design
Doug Wilson
PVI Systems
iNEMI F2F at OFC 2011
Agenda
•Background
•Plan
•Test Fixture Description
•Test Protocol
•Status and Schedule
•Summary
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Background
• “Foundational” experiment to support the
Particle Thickness Project
• Collection of IL/RL data at fine incremental
separation distances (~10 nm steps) using
nm precision stage and fixture
• Verifies that test setup ability to measure
effects of separation using multi-
wavelength IL/RL data
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Connector Separation Plan
• Build test fixture to hold reference and
DUT halves of SC connectors
• Develop LabVIEW software to control the
PI nano-meter position stage and collect
IL/RL data
• Conduct experiments using this hardware
and software
• Report results to group
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Test Fixture Description
• Test fixture
– optical bench base
– manually operated XYZ stage for initial alignment
– holders for the reference and DUT connectors
– load cell to measure compressive force during mating and
– nano precision stage (Z) for controlled connector separation
• Additional test system hardware
– IL/RL meter
– Drive electronics for stage
– computer
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Test Fixture Picture
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Piezo Stage
nm Z positionManual
XYZ
Stage
DUT Holder Load Cell
Ref Holder
Test Fixture Animation
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• Movie removed to minimize file size
Test Protocol
1. Load clean connectors (UUT and Ref) into test fixture
2. Align the reference fiber and sleeve to the UUT
3. Cycle fixture to verify operation of load cell and determine
nominal starting location
4. Move to nominal contact force
5. Measure IL/RL*
6. Move selected step size (target is 10 nm steps)
7. Repeat 5 & 6 until specified distance (~3-5 μm)
8. Display and store IL/RL vs position
9. Compare to theoretical
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* IL/RL measurements consist of user selected number of readings at each
wavelength
Status
• Fixture design completed
• Fixture custom parts machined by Tyco
• Fixture partially assembled; waiting on
load cell for completion
• LabVIEW software for control of IL/RL
instrument identified by Dave Fischer
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Schedule
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Task Completion
Date
Fixture final assembly 15 Mar 2011
LabVIEW framework 15 April 2011
Fixture motion via LabVIEW 30 April 2011
Integrate LabVIEW drivers for IL/RL meter 15 May 2011
Conduct IL/RL vs Position Tests 1-30 June 2011
Report Results 15 July 2011
Acknowledgments
•Rob Brucato of
–Design of test fixture
–Loan of PI stages and electronics
•Dave Fisher of
–Custom machined parts
–Loan of IL/RL instrument (TIA)
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