Raytheon Company

John Schroeder

David Alan Rockwell

David M Filgas

Scott T Johnson

Joseph J Ichkhan

Joseph Ichikhan

A system and method for cooling an optical fiber includes a flexible heat sink member, a heat pipe evaporator, and a thermal storage medium. The flexible heat sink member is in thermal contact with the optical fiber. The heat pipe evaporator is configured to dissipate heat from the optical fiber. The thermal storage medium is in thermal contact with the flexible heat sink member and the heat pipe evaporator. The flexible heat sink member is configured to compensate for any mismatch in coefficient of thermal expansion between material of the optical fiber and material of the flexible heat sink member so as to provide radial compliance and to maintain direct thermal contact between the optical fiber and the flexible heat sink member.

Method and apparatus for cooling a fiber laser or amplifier

A slot impingement cooler is formed of a plurality of sets of foils in a stacked and registered array. In each set of foils, a first foil has supply slots that direct a flow of coolant, a second foil has a plurality of effective light-trap cavities, a third foil has return slots that return the flow of coolant, and an optional fourth foil has a plurality of effective light-trap cavities. The foils have registered supply manifold openings and registered return manifold openings therethrough.

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Long Beach, CA, United States of America

John Schroeder