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US 2020/0299182 A1Published application
Athermal glasses and athermal systems for infrared optics
AssigneeSchott AG
InventorMark J. Davis
Life of this patent
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Abstract
Athermal glasses and athermal systems for infrared optical components and systems are disclosed.
Claims15
A system, the system comprising:
- an etalon or a fiber-based strain sensor, the etalon or the fiber-based strain sensor having a glass composition,
- wherein the glass composition has a figure-of-merit (FOM) with an absolute value that varies by 5 ppm/° C. or less, wherein the FOM is calculated as
- FOM
- =
- α
- +
- 1
- n
-
- dn
- abs
- dT
- .
10 more elements
A system, the system comprising a laser gain media that comprises a chalcogenide glass composition, wherein the glass composition has a figure-of-merit (FOM) with an absolute value that varies by 5 ppm/° C. or less,
- wherein for the laser gain media the FOM is calculated as
- FOM
- =
- α
-
- (
- n
- -
- 1
- )
- +
- dn
- abs
- dT
- .
12 more elements
An optical lens system having one or more lenses, wherein at least one of the one or more lenses comprises a chalcogenide glass composition having a negative figure-of-merit (FOM)≥30 ppm/° C.,
- wherein the FOM is calculated as
- FOM
- =
- (
- 1
- n
- g
- -
- n
- m
- )
-
- [
- dn
- g
- dT
- -
- n
- g
- n
- m
-
- dn
- m
- dT
- ]
- -
- α
25 more elements
Dependencies are inferred from the claim text.