| 摘要 |
An interferometer includes a two-frequency laser, a polarizing beam splitter that separates a beam from the laser into separate beams, and optical fibers that conduct the separate beams to a beam combiner for interferometer optics. The beam combiner uses a birefringent material to merge desired orthogonal polarization components of two separate beams into a combined beam that is input into the interferometer optics. Components of the two beams that lack the desired polarizations are directed away from the combined beam so that the combined beam contains highly orthogonal polarizations for frequency components.
|
