Silicon carbide cladding slab based laser cooling device

Abstract

A silicon carbide cladding slab based laser cooling device is disclosed. The cooling device includes two silicon carbide slabs, two heat sinks and two fans. The first and the second silicon carbide slabs are respectively diffusion bonded to both sides of a Nd:YVO 4 active material of a laser; the first and the second heat sinks are disposed on outer sides of the first and the second silicon carbide slabs, respectively; the first fan is facing the first heat sink and the second fan is facing the second heat sink. The present invention facilitates the operation and miniaturization of a high-energy Nd:YVO 4 slab laser at room temperature and ensures a stable high-energy laser output of the slab laser, thus providing a solution for its commercialization.

1 . A cooling device for a laser having a Nd:YVO 4  active material, comprising:
 a first and a second silicon carbide slab, diffusion bonded to both sides of the Nd:YVO 4  active material respectively;   a first and a second heat sink, respectively disposed on an outer side of the first and the second silicon carbide slabs; and   a first and a second fan, respectively facing the first and the second heat sinks.   
     
     
         2 . The cooling device according to  claim 1 , wherein:
 the first silicon carbide slab, the first heat sink and the first fan are configured to be coaxial with the second silicon carbide slab, the second heat sink and the second fan, respectively.   
     
     
         3 . The cooling device according to  claim 1 , wherein:
 the first and the second silicon carbide slabs have a larger size than the Nd:YVO 4  active material to form silicon carbide claddings.   
     
     
         4 . The cooling device according to  claim 1 , wherein:
 the first and the second heat sinks are copper blocks with micro-grooves formed on outside surfaces, inner surfaces of the copper blocks being closely connected with the first and the second silicon carbide slabs respectively.