Planar waveguide and a process for its fabrication
First Claim
1. A process for fabricating a planar waveguide comprising:
- forming a layer of a doped, waveguiding host material and a dopant material on a substrate by evaporating the host material from a first source and the dopant material from the second source, wherein the first source material is a metal fluoride wherein the metal is selected from the group consisting of the Group IIIB metals and the lanthanide series rare earth metal of the Mendeleevian Periodic Table of the Elements and the second source material is ErF3.
3 Assignments
0 Petitions
Accused Products
Abstract
A planar waveguide and a process for making a planar waveguide is disclosed. The waveguide has a layer of dope host material formed on a substrate. The host material is a trivalent material such as a metal fluoride, wherein the metal is selected from the Group III B metals and the lanthanide series rare earth metals of the Mendeleevian Periodic Table. The dopant is a rare earth metal such as erbium. The waveguide has an emission spectrum with a bandwidth of about 60 nm for amplification of an optical signal at a wavelength of about 1.51 μm to about 1.57 μm. The waveguide is made by forming the layer of doped host material on a substrate. The film is formed by evaporating materials from two separate sources, one source for the dopant material and a separate source for the host material and forming a film of the evaporated materials on a substrate.
67 Citations
8 Claims
-
1. A process for fabricating a planar waveguide comprising:
forming a layer of a doped, waveguiding host material and a dopant material on a substrate by evaporating the host material from a first source and the dopant material from the second source, wherein the first source material is a metal fluoride wherein the metal is selected from the group consisting of the Group IIIB metals and the lanthanide series rare earth metal of the Mendeleevian Periodic Table of the Elements and the second source material is ErF3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification