Process for producing an optical waveguide

Details Process for producing an optical waveguide Process for producing an optical waveguide

1987-12-11

1988-08-30

Pal, Asok

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG71, 156DIG75, 156DIG81, 156607, 350 9612, 350 9615, 350 9630, 350 9634, 427164, B01J 1724, B05D 506

Patent

active

047669543

ABSTRACT:
There is disclosed a process for producing an optical waveguide comprising contacting at least one optically smooth surface of a single crystal of K.sub.1-x Rb.sub.x TiOMO.sub.4 wherein x is from 0 to 1 and M is P or As with a specified molten salt of at least one of Rb, Cs and Tl at a temperature of from about 200.degree. C. to about 600.degree. C. for a time sufficient to increase the surface index of refraction at least about 0.00025 with respect to the index of refraction of the starting crystal, and cooling the resulting crystal. The product made thereby and a waveguide device using the same are also disclosed.

REFERENCES:
patent: 3811912 (1974-05-01), Ramaswamy
patent: 3949323 (1976-04-01), Bierlein et al.
patent: 3998687 (1976-12-01), Ballman et al.
patent: 4037005 (1977-07-01), Phillips
patent: 4073675 (1978-02-01), Ballman et al.
patent: 4206251 (1980-06-01), Chen
patent: 4231838 (1980-11-01), Gier
patent: 4284663 (1981-08-01), Carruthers et al.
patent: 4305778 (1981-12-01), Gier
patent: 4329016 (1982-05-01), Chen
Ishitani et al., "Single-Crystal Sr.sub.2 Nb.sub.2 O.sub.7 Film Optical Waveguide Deposited by Rf Sputtering", Appl. Phy. Lett., 29, 289-291 (1976).
Zumsteg et al., "K Rb.sub.1-x TiOPO.sub.4 : A New Nonlinear Optical Material", J. App. Phys. 47, 4980-4985 (1976).
Belt et al., "KPT as a Harmonic Generator for Nd:YAG Lasers", Laser Focus/Electro-Optics, 110-124 (Oct. 1985).
Massey et al., "Raman and Electrotropic Properties of Potassium Titanium Phosphate", Applied Optics, 24, 4136-4137 (1980).

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