Snout assembly

A snout assembly, comprising:

• a snout bulkhead comprising an opening along a longitudinal axis of the snout bulkhead,
• wherein the opening in the snout bulkhead comprises a first region and a second region;
• a ferrule in the opening of the snout bulkhead,
• wherein the ferrule spans a portion of the first region and a portion of the second region;
• a metallization layer on a portion of an outer surface of the ferrule;
• and
• a copper-silver (CuAg) solder material between the metallization layer and a surface of the opening,
• wherein the CuAg solder material provides a hermetic seal between the snout bulkhead and the ferrule.

A snout assembly of a laser pump module, comprising:

• a snout bulkhead comprising an opening;
• a ferrule in the opening of the snout bulkhead;
• a metallization layer on an outer surface of the ferrule;
• and
• a copper-silver (CuAg) solder material that bonds the ferrule and the snout bulkhead,
• wherein a coefficient of thermal expansion (CTE) of the metallization layer transitions from a lower CTE nearer to the ferrule to a higher CTE nearer to the CuAg solder material.