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Nov1-08, 10:53 PM
I want to superpose two laser beams to create the beat frequency.
I design the system to be like this .
Two laser beams come from A and B meet at the center of the PBS, so that two laser beams going out to C and D. I tune the laser beams A and B such that the laser output at C and D superimpose. In mathematical terms.
E1=Aexp[i(k1x-w1t)]
E2=Bexp{i(k2x-w2t)]
So, the superimposed state is
E=E1+E2.
My problem is, I use a polarizing beam splitter. so the output laser beam have Electric field that are orthogonal to each other. It'd be nice if I can get parallel E field so that the superposition would be much better.
How can I do that. How can I make the two orthogonal electric field to be parallel to each other?
I design the system to be like this .
Two laser beams come from A and B meet at the center of the PBS, so that two laser beams going out to C and D. I tune the laser beams A and B such that the laser output at C and D superimpose. In mathematical terms.
E1=Aexp[i(k1x-w1t)]
E2=Bexp{i(k2x-w2t)]
So, the superimposed state is
E=E1+E2.
My problem is, I use a polarizing beam splitter. so the output laser beam have Electric field that are orthogonal to each other. It'd be nice if I can get parallel E field so that the superposition would be much better.
How can I do that. How can I make the two orthogonal electric field to be parallel to each other?