Slab-type optical device

Details Slab-type optical device Slab-type optical device

1986-01-06

1987-06-23

Sikes, William L.

350 9615, G02B 610

Patent

active

046748270

ABSTRACT:
A slab-type optical device comprising a pair of single mode waveguides equal in phase constant and intersecting each other each at its one end and a pair of single mode waveguides different in phase constant and intersecting each other each at its one end. The pairs of waveguides are joined to each other at their intersections. The angle of intersection of the two waveguides in each pair is set to such a small value that when light propagates along the waveguide a very small distance, the variation in the spacing between the waveguides is negligible relative to the distance of propagation.

REFERENCES:
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patent: 4196964 (1980-04-01), Papuchon
patent: 4262992 (1981-04-01), Berthold, III
patent: 4266850 (1981-05-01), Burns
patent: 4433895 (1984-02-01), Puech et al.
patent: 4468085 (1984-08-01), Papuchon et al.
patent: 4492425 (1985-01-01), Kersten et al.
Nelson, Applied Optics, vol. 19, No. 20, Oct. 15, 1980, "Photoelastic Waveguides in LiTaO.sub.3 and LiNbO.sub.3 ", pp. 3423-3424.
Haruna et al., Electronics Letters, vol. 17, No. 22, Oct. 29, 1981, "Thermo-Optic Effect in LiNbO.sub.3 for Light Deflection and Switching", pp. 842-844.
Article entitled "Operation Mechanism of the Single-mode Optical-waveguide Y Junction" by Mr. Izutsu, Makai & Sueta, in Optics Letters, vol. 7, No. 3, Mar. 1982, pp. 136-138.
Japanese article entitled "Integrated-Optical Modulators Using Guided-Wave Beam Splitters" by Mr. Izutsu, Enokihara, and Sueta; dated May 21, 1982, vol. 82, No. 27.
Article entitled "Optical-waveguide Micro-displacement Sensor" by Mr. Izutsu, Enokihara and Sueta; dated Aug. 16, 1982, in Electronics Letters, vol. 18, No. 20; Sep. 30, 1982, pp. 867 and 868.
Article entitled "Optical-waveguide Hybrid Coupler" by Izutsu, Enokihara and Sueta, in Optics Letters, Nov. 1982, vol. 7, No. 11, pp. 549-551.

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