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1. 发明授权

US4635266A Active dispersion control for a Doppler broadened laser 失效
标题翻译：多普勒扩展激光器的主动色散控制
公开(公告)号：US4635266A
公开(公告)日：1987-01-06
申请号：US680432
申请日：1984-12-11
申请人： Roger L. Facklam
发明人： Roger L. Facklam
IPC分类号： G04G7/00 , H01S3/083 , H01S3/134 , H01S3/139 , H01S3/13
CPC分类号： G04G7/00 , H01S3/083 , H01S3/134 , H01S3/1394
摘要： A method of controlling the output of a laser in a laser clock to compensate for changes in the output of the laser due to optical dispersion resulting from laser aging and changes in laser temperature is described, which comprises, comparing the output frequency of the laser clock with a standard of known frequency, such as an atomic clock, calculating the change in laser discharge current corresponding to any difference between the laser clock frequency and the standard required to adjust the laser clock frequency to a predetermined frequency value, and adjusting the laser discharge current to a value corresponding to the predetermined laser clock frequency.
摘要翻译：描述了一种控制激光时钟中的激光输出以补偿激光老化引起的光学色散和激光温度变化引起的激光器输出变化的方法，其包括：比较激光时钟的输出频率以诸如原子钟的已知频率的标准计算激光放电电流的变化，其对应于激光时钟频率与将激光器时钟频率调整到预定频率值所需的标准之间的任何差异，并且调整激光放电电流达到对应于预定激光器时钟频率的值。

2. 发明授权

US4982406A Self-injection locking technique 失效
标题翻译：自注射锁定技术
公开(公告)号：US4982406A
公开(公告)日：1991-01-01
申请号：US415520
申请日：1989-10-02
申请人： Roger L. Facklam
发明人： Roger L. Facklam
IPC分类号： H01S3/098 , H01S3/23
CPC分类号： H01S3/08036 , H01S3/08068 , H01S3/0815 , H01S3/0823
摘要： A self-injection locking system is disclosed that internally narrows the prepulse of a laser cavity before it is replicated as the laser output using: two quarter wave plates, an air spaced etalon, and a polarizing beam splitter. The air spaced etalon will separate the off-center frequency signals from the center frequency signals of the prepulse by inducing a phase shift. Following this, the polarizing beam splitter impedes the off-center frequency signals by a power loss of about ten percent while the center frequency signals are unaffected. In operation, this can cause the off-center frequency signals to fail to reach the threshold at which stimulated emission takes place. The result is that the laser replicates only the center frequency signals as the laser output.
摘要翻译：公开了一种自注射锁定系统，其在将激光腔的前脉冲复制为激光输出之前，使用：四分之一波片，空气间隔标准具和偏振分束器在内部变窄。空气间的标准具将通过引起相移将偏心频率信号与前脉冲的中心频率信号分离。此后，偏振分束器在中心频率信号不受影响时，以偏离中心频率信号的大约百分之十的功率损耗来阻止。在操作中，这可能导致偏心频率信号不能达到发生受激发射的阈值。结果是激光只复制中心频率信号作为激光输出。

3. 发明授权

US4482259A Laser clock 失效
标题翻译：激光时钟
公开(公告)号：US4482259A
公开(公告)日：1984-11-13
申请号：US498238
申请日：1983-05-26
申请人： Roger L. Facklam
发明人： Roger L. Facklam
IPC分类号： G04F5/14 , G04F8/00 , G04F5/00
CPC分类号： G04F5/14
摘要： A laser clock includes a linear laser in one embodiment of the clock and a ring laser gyro in the other embodiment. The linear laser is frequency stabilized and utilizes a single active medium in the form of a low pressure gas, such as He-Ne, with a Doppler broadened gain curve. The ring laser gyro is a four frequency laser with a Faraday rotor. Detector and electronic circuitry associated with the laser of each embodiment detect a beat frequency and converts it to a clock signal.
摘要翻译：激光时钟包括时钟的一个实施例中的线性激光器和另一实施例中的环形激光陀螺仪。线性激光器是频率稳定的，并且利用具有多普勒加宽增益曲线的诸如He-Ne的低压气体形式的单一活性介质。环形激光陀螺仪是具有法拉第转子的四频激光器。与每个实施例的激光器相关联的检测器和电子电路检测拍频，并将其转换为时钟信号。

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