Details for Mode Matching
1) Laser to PMC
The laser has
Wx = 155 um, 3.45 cm in front of the opening.
Wy = 201 um, 2.8 cm in front of the opening.
The average number for calculation is w = 180 um, 3cm in front of the opening.
First, we focus the beam to the EOM, w can be 250 – 500 um.
We pick 350 um.
F= 200 mm,
W1= 180 um
W2=350 um
Distance from w1 to the lens, d1, = 9.36”.
Distance from w1 to w2, L, = 22.8 “.
Then we mode match this beam to PMC
F1= 50.2mm
F2= 63mm
W1=350 um
W2= 370um
Distance from w1 to first lens, d1, =157mm =6.2”
Distance from first lens to 2nd lens, d2 =120mm = 4.7”
Distance from 2nd lens to PMC, d3 = 358mm
Distance from w1 to w2, L, = 63.5 cm = 25”
I'll check if I can find f =200mm, 63mm, 50mm in the lab or not.
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