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Method and apparatus for the stabilization of the oscillator frequency heavy-duty - - difference of a number of laser devices.
Method and apparatus for the stabilization of the oscillator frequency heavy-duty - - difference of a number of laser devices.
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机译：用于稳定多个激光器装置的振荡器频率繁重差的方法和装置。
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摘要
PURPOSE:To hold a control operation and to prevent a jump of an oscillation frequency by a method wherein, when a beat pulse is not generated within a definite time before or after the generation time of individual pulses of a reference pulse row, a pulse generated by a control device is used as one of beat pulses for control use. CONSTITUTION:When a second beat pulse as counted from the front disappears by any cause, a monostable multivibrator 35 is reset by an inverted part of a monostable multivibrator 36 which rises at the starting time of the supervisory time for individual reference pulses. An inverted output of the vibrator 35 is input to a control terminal of a monostable multivibrator 34. An output of a monostable multivibrator 32 is input to the vibrator 34 which generates a pulse at the closing time of the supervisory time; when its control terminal input CD is in a low level, the pulse is not generated. Accordingly, when the beat pulse does not arrive within the supervisory time, the pulse is generated. This pulse output is inserted into an original beat pulse row by means of an OR gate and is input to a counter.
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