Segmented waveguides having selected Bragg reflection characteristics
1991 (English)Patent (Other (popular science, discussion, etc.))
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
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-93189OAI: oai:DiVA.org:kth-93189DiVA: diva2:515341
US 5243676A (1993-09-07)
US 5393561 A (1995-02-28)2012-04-122012-04-122015-03-30Bibliographically approved