Polarization maintaining optical isolators
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
Oct 19, 2000
filing date -
Oct 20, 1999
priority date (Note) -
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Abstract
Optical isolators for use in fiber optic networks utilizing a birefringent wedge set with a Faraday rotator disposed between the birefringent wedges. In a first embodiment a polarization maintaining optical isolator is disclosed which will maintain the polarization of the light which passes through it in a forward direction and block light in the reverse direction. In a second embodiment a single polarization optical isolator is disclosed which will pass only a single linear polarization of the light in a forward direction and block any light in the reverse direction.
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