Metal vapor laser device

摘要

A metal vapor laser device which prevents a possible discharge between an electrode and a pressure detector thereof and can generate a laser beam in a stabilized condition. The metal vapor laser device comprises a metal vapor laser tube, a carrier gas supplier, and a pressure detector. The carrier gas supplier communicates with a discharge spacing within the laser tube by way of a communicating hole formed at an end portion thereof. The pressure detector includes a tube defining a pressure detecting chamber therein and communicating with the inside of the carrier gas supplier, and an energizable detecting element provided in the inside of the pressure detecting chamber. A discharge preventing thin tube is provided in the inside of the carrier gas supplier and has an end connected to the end portion of the carrier gas supplier in such a manner as to surround the communicating hole of the carrier gas supplier. The discharge preventing thin tube extends toward the other end portion of the carrier gas supplier farther than a connecting portion of the carrier gas supplier to the pressure detector, and the other end thereof is opened within the carrier gas supplier.