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Segmented waveguides having selected Bragg reflection characteristics
1991 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Segmented waveguides for wavelength conversion (e.g., waveguides comprising alternating sections of crystalline substrate having the formula K1-x Rbx TiOMO4 where x is from 0 to 1 and M is P or As and sections of substrate material in which cations of said substrate have been partially replaced) and devices and processes employing segmented waveguides for wavelength conversion are disclosed wherein a periodic structure along the waveguide provides a Bragg reflection having a wavelength essentially equal to the wavelength of the input wave used for wavelength conversion. Also disclosed is a process for preparing a channel waveguide for a wavelength conversion system wherein areas along a portion of a crystal substrate surface used for forming the desired channel are alternately masked and unmasked during cation replacement by immersion in a molten salt.

Place, publisher, year, edition, pages
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:kth:diva-93189OAI: diva2:515341
US 5243676A (1993-09-07)

US 5393561 A (1995-02-28)

Available from: 2012-04-12 Created: 2012-04-12 Last updated: 2015-03-30Bibliographically approved

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Laurell, Fredrik
Atom and Molecular Physics and Optics

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