Patent ID: 6055101
Filing Date: 2000-04-25
Classification: G02F

Abstract:
An apparatus for isolating an optical beam, said apparatus comprising:a first isolator device, including:walk-off components for separating the beam into polarized component beams and for combining the polarized component beams; andnon-reciprocal rotation components for rotating the polarizations of the polarized component beams, said non-reciprocal rotation components being located between said walk-off components, and wherein said walk-off components and said non-reciprocal rotation components are adjacent each others; anda second isolator device, including:walk-off components for separating the beam into polarized component beams and for combining the polarized component beams; andnon-reciprocal rotation components for rotating the polarizations of the polarized component beams, said non-reciprocal rotation components being located between said walk-off components, and wherein said walk-off components and said non-reciprocal rotation components are adjacent each other; anda reciprocal polarization interchanger, said reciprocal polarization interchanger being located between said first and second isolator devices.