Optical waveguide element and method for preparation thereof
January 18, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3649311 Method for making silver-containing glasses exhibiting thermoplastic properties and photosensitivity Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm3 UV-transmitting glasses High energy beam-sensitive glasses Ion exchange compositions Lightwave guide produced from special substrate glasses by ion exchange against CS+ ions Essentially colorless silver-containing glasses through ion exchange Lightwave guide produced by ion exchange of cs+ ions Method of forming stable images in electron beam writable glass compositions InventorsAssigneeApplicationNo. 10204155 filed on 01/18/2002US Classes:501/66, And aluminum501/67, And zinc or zirconium501/65And boronExaminersPrimary: Group, KarlAssistant: Bolden, Elizabeth A. Attorney, Agent or FirmForeign Patent References
International ClassesC03C 3091C03C 308 AbstractAn optical waveguide element that can stably and inexpensively form an optical waveguide of low loss and low stress in a glass material by ion exchange of Ag ions, and to provide a process for producing the same are provided. The optical waveguide element is made of a multicomponent glass material, which is Na2O—B2O3—Al2O3—SiO2 glass containing from 5 to 13% by mole of Na2O, in which an optical waveguide is formed by doping with Ag ions by ion exchange. The composition is preferably SiO2: 60 to 75% by mole, B2O3: 10 to 20% by mole, Al2O3: 2 to 10% by mole, Na2O: 5 to 13% by mole, Li2O: 0 to 1% by mole, As2O3: 0 to 0.5% by mole, and Sb2O3: 0 to 0.5% by mole (provided that As2O3+Sb2O3: 0.01 to 1% mole).Other References
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