Method of tuning an optical device

Details Method of tuning an optical device Method of tuning an optical device

1999-02-11

1999-09-07

Kim, Robert H.

Optics: measuring and testing

By particle light scattering

With photocell detection

356346, 385 12, G01B 902

Patent

active

059495421

ABSTRACT:
Disclosed is a tuning method for optical interference devices which comprise at least one plurality of waveguides arranged to produce a preselected phase shift in light transmitted therethrough. The tuning is carried out by irradiating the plurality of waveguides using a source of UV light. The method is faster and more reproducible than other tuning methods known in the art, such as tuning by heat induced dopant diffusion. The method is exemplified by data taken using a Mach-Zehnder interferometer. However, the method is compatible with more sophisticated devices which use integrated waveguides or large numbers of waveguides in the phase changing portion of the device.

REFERENCES:
patent: 5062684 (1991-11-01), Clayton et al.

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