Optical waveguides – Polarization without modulation
Patent
1994-04-01
1995-12-12
Lee, John D.
Optical waveguides
Polarization without modulation
385 45, 385129, G02B 610
Patent
active
054757711
ABSTRACT:
A polarization splitter comprises an optical waveguide formed on a substrate and having an S-shaped curve portion, for permitting propagation of two linearly polarized lights orthogonal to each other therethrough, and an anisotropic optical waveguide branching from the beginning of the S-shaped curve portion, into which is guided one of the two linearly polarized lights alone.
REFERENCES:
patent: 4943131 (1990-07-01), Taki
patent: 5011248 (1991-04-01), Taki
patent: 5319494 (1994-06-01), Miyaguchi et al.
patent: 5420949 (1995-05-01), Arima et al.
"Integrated optic adiabatic polarization splitter on silicon", by Y. Shani et al., Applied Physics Letters, vol. 56, No. 2, Jan. 8, 1990 pp. 120-121.
"A TE-TM Mode Splitter in LiNbO.sub.3 by Proton Exchange and Ti Diffusion", by N. Goto et al., Journal of Lightwave Technology, vol. 7, No. 10, Oct. 1989 pp. 1567-1574.
"Buried Optical Waveguide Polarizer by Titanium Indiffusion and Proton-Exchange in LiNbO.sub.3 ", by P. Jiang, IEEE Photonics Technology Letters, vol. 4, No. 8, Aug. 1992 pp. 881-883.
"A Polarization Splitter on LiNbO.sub.3 Using Only Titanium Diffusion", by J. J. G. M. Van Der Tol et al., Journal of Lightwave Technology, vol. 9, No. 7, Jul. 1991 pp. 879-886.
Lee John D.
NEC Corporation
Palmer Phan T. H.
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