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Weekly Report. Speaker : Stephen C heng Advisor : C hao W en Liang Date: 20131016. Outline. Collimator Lens Correction. Collimator Lens. Gaussian beam from the fiber. Gaussian beam from the fiber with expander. Collimator Lens. Correct (LA1608). Correct (LA1608). Weekly Report.
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Weekly Report Speaker:Stephen Cheng Advisor:Chao Wen Liang Date: 20131016
Outline • Collimator Lens • Correction
Collimator Lens Gaussian beam from the fiber Gaussian beam from the fiber with expander
Weekly Report Speaker:Stephen Cheng Advisor:Chao Wen Liang Date: 20131023
Weekly Report Speaker:Stephen Cheng Advisor:Chao Wen Liang Date: 20131120
Outline • Original alignment method • Experiment with tilt the CCD stage ( lens: LA1608)
Experiment with tilt spot diagram at 0 degree quiver vector from -0.5 to 0.5 degree
calibrate -1.5 degree -1.0 degree -0.5 degree
calibrate -0 degree +0 degree
calibrate 0.5 degree 1.0 degree 1.5 degree
Problem • 1. 因為平移 (Tilt) 造成的 spot patterns 發生位移,導致看見的 coefficient 發生 step shift
Weekly Report Speaker:Stephen Cheng Advisor:Chao Wen Liang Date: 20131120
平面標準鏡 Mirror Lens shift
0 -10 15
平面標準鏡 Lens Ball shift