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US 12,470,035 B2Granted
Silver-diamond heatsinks for optical devices
AssigneeLumentum Operations LLC
InventorChristoffer Stroemberg
Life of this patent
Estimating the term…
Abstract
A heat sink assembly may include a first cooling stack. The first cooling stack may include a silver-diamond composite material. The heat sink assembly may include a second cooling stack. The second cooling stack may include the silver-diamond composite material. The heat sink assembly may include a crystal rod. The crystal rod may be an ytterbium-doped, yttrium-aluminum-garnet laser medium. The crystal rod may be at least partially sandwiched by the first cooling stack and the second cooling stack.
Claims20
A heat sink assembly, comprising:
- a first cooling stack,
- wherein the first cooling stack includes a metal-diamond composite material;
- a second cooling stack,
- wherein the second cooling stack includes the metal-diamond composite material;
- and
- a crystal rod,
- wherein the first cooling stack and the second cooling stack are configured to mate and at least partially sandwich the crystal rod,
- wherein a crystalline orientation of the crystal rod is aligned with an orientation of the first cooling stack and the second cooling stack,
- wherein a first coefficient of thermal expansion (CTE) of the crystal rod is matched to a second CTE of the metal-diamond composite material within 25% based on a type of the metal-diamond composite material, and
- wherein the crystal rod is an ytterbium-doped, yttrium-aluminum-garnet laser medium.
7 more elements
A heat sink assembly, comprising:
- a first cooling stack including a first metal-diamond composite section;
- a second cooling stack including a second metal-diamond composite section;
- and
- an optical component,
- wherein the first metal-diamond composite section and the second metal-diamond composite section include respective cutouts to receive the optical component for cooling,
- wherein a crystalline orientation of the optical component is aligned with an orientation of the first cooling stack and the second cooling stack, and
- wherein a first coefficient of thermal expansion (CTE) of the optical component is matched to a second CTE of a metal-diamond composite material of the first cooling stack and the second cooling stack within 25% based on a type of the metal-diamond composite material.
4 more elements
A method, comprising:
- aligning a crystalline orientation of a crystal rod with an orientation of a first cooling stack and a second cooling stack of a heat sink assembly,
- wherein the first cooling stack and the second cooling stack have respective faces formed from a metal-diamond composite material, and
- wherein a first coefficient of thermal expansion (CTE) of the crystal rod is matched to a second CTE of the metal-diamond composite material within 25% based on a type of the metal-diamond composite material;
- and
- attaching the first cooling stack to the second cooling stack, such that the crystal rod is sandwiched between the first cooling stack and the second cooling stack and the crystalline orientation is maintained by the respective faces of the first cooling stack and the second cooling stack.
2 more elements
Dependencies are inferred from the claim text.