Thin film optical element

Details Thin film optical element Thin film optical element

1985-09-10

1988-10-18

Lee, John

350 9612, 350 9613, G02B 612

Patent

active

047782366

ABSTRACT:
The thin film optical element comprises a substrate, a thin film light guide formed by ion injection into the surface of the substrate, an optical functional part formed in a part of the light guide for varying the refractive index thereof by an external effect to modulate or deflect the guided wave, and an optical connector part formed at the end of the light guide for guiding the light into or from the end face of said light guide, by differentiating the distribution of ion distribution between the optical connector part and the optical functional part.

REFERENCES:
patent: 3880630 (1975-04-01), Izawa
patent: 3996576 (1976-12-01), Bullock
patent: 4558338 (1985-12-01), Sakata
patent: 4583817 (1986-04-01), Papuchon
patent: 4585299 (1986-04-01), Strain
patent: 4605944 (1986-08-01), Ishii et al.
Somekh et al, "Channel Optical Waveguides and Directional . . . ", Applied Optics, vol. 13, No. 2, Feb. 1974, pp. 327-330.
Wei et al, "Large Refractive Index Change Induced by Ion . . . ", Appl. Phys. Lett., vol. 25, No. 6, Sep. 1974, pp. 329-331.
King et al, "Ion Implanted Optical Waveguides in LiNbO.sub.3 ", Electron Lett., vol. 17, No. 23, Nov. 1981, pp. 897-898.
Heibei et al, "Strip Waveguides in LiNbO.sub.3 Fabricataed by . . . ", IEEE J.Q.E., vol. QE-18, No. 5, May 1982, pp. 820-825.

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