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公开(公告)号：US3614654A
公开(公告)日：1971-10-19
申请号：US3614654D
申请日：1963-09-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： GRONROS WARREN , WALSH EDWARD J
CPC classification number: H01S3/0323 , H01S3/038
Abstract: A direct-current gaseous optical maser comprises an elongated hollow cylinder that is open on both ends for defining a usable gas discharge path portion. A cathode and an anode are set back from the two ends within enclosures so that the gas discharge follows an approximately U-shaped path from the cathode through one open end of the cylinder and a similar path from the other open end to the anode.
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