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Diode laser component with cooling element and diode laser module

  • US 5,903,583 A
  • Filed: 10/15/1997
  • Issued: 05/11/1999
  • Est. Priority Date: 02/22/1995
  • Status: Expired due to Fees
First Claim
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1. A diode laser comprisinga multilayer substrate;

  • a diode laser component having a coefficient of thermal expansion mounted on the multilayer substrate;

    the multilayer substrate comprising a plurality of layers joined to one another forming a stack of layers including an upper and a lower layer and having a coefficient of thermal expansion;

    openings and recesses in at least a part of the layers in between the upper layer and the lower layer, the openings and recesses are in communication forming a coolant distribution system inside multilayer substrate with a coolant inlet and a coolant outlet;

    at least the layers with the recesses and openings forming the coolant distribution system being metal layers;

    a means for matching the coefficient of thermal expansion of the multilayer substrate to the coefficient of thermal expansion of the diode laser component, the means being a layer or insert of a material which has a coefficient of thermal expansion which is much less than the coefficient of thermal expansion of the metal layers;

    the arrangement and formation of layers of the multilayer substrate being symmetrical to a center plane (M) which runs parallel to the upper layer and the lower layer.

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