Compensation for optical damage of directional-coupler switches

Details Compensation for optical damage of directional-coupler switches Compensation for optical damage of directional-coupler switches

1984-05-03

1987-09-01

Sikes, William L.

350 9613, 350 9614, G02B 610

Patent

active

046904883

ABSTRACT:
The present invention is directed to a process and product of a process in the field of optical directional coupler switches. The application of laser light to the input ports of a coupler switch at a power level approximately twice or greater the operational power level that has been discovered to cause optical damage produces a remedial effect of stabilizing the switching characteristics of the optical coupler switch. The resulting optical coupler switch has improved transmission characteristics when measured by a transfer function over that of an untreated coupler switch.

REFERENCES:
patent: 3689264 (1972-09-01), Chandross et al.
patent: 3864130 (1975-02-01), Nassenstein
patent: 4157860 (1979-06-01), Marcatili
patent: 4262993 (1981-04-01), Burns et al.
patent: 4312562 (1982-01-01), Segawa et al.
Schmidt et al., J. Appl. Phys., 51(1), Jan. 1980, "Optically Induced Crosstalk in LiNbO.sub.3 Waveguide Switches", pp. 90-93.

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