摘要：

The invention relates to a plug part for an optical waveguide (8), comprising an essentially cylindrical housing (10), at least one inlet bore (17) and at least one outlet bore (18) for a cooling medium, and a cooling collar (12) which is disposed inside the housing (10) and cools an optical waveguide (8) located in the housing (10) at least along one section (b) of the length thereof. The disclosed plug part is characterized in that a protective glass (14), across at least almost the entire internal surface of which the cooling medium flows, is provided at one end of the housing (10), the front of the optical waveguide (8) also being impinged upon by the cooling medium. The invention further relates to a plug part for an optical waveguide (8), comprising an inserted sleeve (19) which divides a cooling medium flow that penetrates into the housing (10) into a first and a second individual flow (KS1, KS2).

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