![]() ![]() The optical circulator of claim 2, further including a polarizing thin film associated with the reflecting means for combining light rays incident thereon from opposite sides thereof.ĥ. The optical circulator of claim 2, wherein the inclined end surface of the member reflects light transmitted through the member.Ĥ. The optical circulator of claim 1, wherein the reflecting means is a light transmitting member having first and second side surfaces and an end surface inclined with respect to the first and second side surfaces.ģ. Reflecting means disposed adjacent to one of the first and second birefringent crystals, whereby light incident upon a first point on the reflecting means is transmitted to a point on the birefringent crystal not adjacent to the reflecting means, and whereby light incident upon the point on the birefringent crystal not adjacent to the reflecting means is transmitted to a second point on the reflecting means.Ģ. 370-372.Ī reciprocal polarization element having first and second side surfaces Ī non-reciprocal polarization element having first and second side surfaces, the first side surface being disposed against the second side surface of the reciprocal polarization element Ī first birefringent crystal having first and second side surfaces, the second side surface being disposed against the first side surface of the reciprocal polarization element Ī second birefringent crystal having first and second side surfaces, the first side surface being disposed against the second side surface of the non-reciprocal polarization element and Yokohama, I., et al., "Polarization-Independent Optical Circulator Consisting of Two Fibre-Optic Polarizing Beam Splitters and Two Yig Spherical Lenses", Electronics Letters, Mar. Yokohama, I., et al., "Fibre-Optic Polarizing Beam Splitter Employing Birefringent-Fibre Coupler", Electronics Letter, May 9, 1985, vol. H., et al., "Fiber Faraday Circulator or Isolator", Optics Letters, vol. ![]() Shirasaki, Masataka, et al., "A Compact Polarization-Independent Optical Circulator", Applied Optics, Aug. Okamura, Yasuyuki, et al., "Integrated Optical Isolator and Circulator Using Nonreciprocal Phase Shifters: A Proposal", Applied Optics, vol. Mizumoto, T., et al., "Verification of Waveguide-Type Optical Circulator Operation", Electronic Letters, Feb. ![]() Iwamura, Hidetoshi, et al., "Simple Polarization-Independent Optical Circulator for Optical Transmission Systems", Electronics Letters, Dec. 456-460.įujii Yohji, "High-Isolation Polarization-Independent Optical Circulator", Journal of Lightwave Technology, vol. Method of wavelength multiplexing in fused single-mode fiber couplersįujii, Yohji, "High-Isolation Polarization-Independent Optical Circulator Coupled with Single-Mode with Single-Mode Fibers", Journal of Lightwave Technology, vol. Optical systems with antireciprocal polarization rotators Non-reciprocal optical waveguide device, particularly for use as an isolator or circulatorĭirectional coupler for coupling single-polarization optical fibersīirefringent optical multiplexer with flattened bandpass Optical isolator with resonant cavity having gyrotropic material Hybrid optical isolator, circulator or switch, and systems utilizing same Optical wavelength multiplexer/demultiplexer and demultiplexer/remultiplexer Quasi-achromatic optical isolators and circulators ![]() Polarization independent optical isolatorĪpparatus comprising a waveguide magneto-optic isolator Optical circulator having a simplified construction ![]()
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