Optical waveguide and method for fabricating the same

Details Optical waveguide and method for fabricating the same Optical waveguide and method for fabricating the same

1988-02-17

1989-08-15

Gonzalez, Frank

Electric heating

Microwave heating

Tunnel furnace

65 311, 21912161, G12B 610

Patent

active

048568597

ABSTRACT:
Formed on a low refractive index layer (refractive index n.sub.b) is a core waveguide (refractive index n.sub.c, n.sub.c >n.sub.b) and formed on the core waveguide is a cladding whose refractive index n.sub.cl (n.sub.cl <n.sub.c, n.sub.cl .noteq.n.sub.b) is varied in the propagation direction of optical signals. Formed on a low refractive index layer (refractive index n.sub.b) is a core waveguide whose refractive index n.sub.c (n.sub.c >n.sub.b) is continuously varied in the propagation direction of optical signals and formed on the entire core waveguide is a cladding (refractive index n.sub.cl, n.sub.cl <n.sub.c).

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patent: 4710605 (1987-12-01), Presby
patent: 4733927 (1988-03-01), Jackson et al.
Oohara et al., Optical Communication, Nov. 1981, published by Corona-sha, p. 142.

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