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公开(公告)号：US3816754A
公开(公告)日：1974-06-11
申请号：US34330773
申请日：1973-03-21
Applicant: IBM
CPC classification number: H01S3/305
Abstract: An infrared source producing a coherent output having a spectrally narrow and continuously tunable frequency is described. Such a source uses a four wave mixing process in an alkali metal vapor, wherein the initial input beams to the alkali metal vapor come from two dye lasers. In an alternative mode of operation, tunable ultraviolet output is obtained.
Abstract translation: 描述了产生具有频谱窄且连续可调频率的相干输出的红外源。 这种源在碱金属蒸气中使用四波混合过程，其中对碱金属蒸气的初始输入光束来自两个染料激光器。 在另一种操作模式下，可获得可调谐的紫外线输出。
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Patent Agency Ranking2.发明授权Q-switch for synchronizing mode-locked laser pulse trans with external events 失效用于与外部事件同步模式锁定激光脉冲转换的Q开关
公开(公告)号：US3760295A
公开(公告)日：1973-09-18
申请号：US3760295D
申请日：1972-05-22
Applicant: IBM
CPC classification number: H01S3/1112 , G02F1/3523 , H01S3/09 , H01S3/1061 , H01S3/11
Abstract: A capacitive discharge in cesium vapor is used to realize an externally controllable Q-switch synchronizing the appearance of pulse trains from a passively mode-locked neodymium glass laser with other events occurring on a microsecond time scale.
Abstract translation: 铯蒸气中的电容放电用于实现外部可控的Q开关，使来自被动模式锁定的钕玻璃激光器的脉冲串的出现同步于微秒级的其他事件。
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公开(公告)号：SE306121B
公开(公告)日：1968-11-18
申请号：SE1180161
申请日：1961-11-27
Applicant: IBM
Inventor： SOROKIN P , STEVENSON M
Abstract: In an optical maser like the maser described in Specification 982,410, the host crystal, which may be calcium fluoride, is doped with divalent samarium. The pumping frequency produces transitions from a ground state A to an excitation state D from which there are non-radiative transitions to a metastable state C close to the excitation state D. A transition from metastable state C to terminating state B close to the ground state produces the output which is in the same part of the spectrum (red) as the pumping frequency. The two non-radiative transitions Y1, Y2 involve only small energy changes.
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