The invention discloses a
laser rapid frequency hopping locking method, and belongs to the field of
atomic physics and
laser frequency locking. The frequency of the
laser is stabilized through
frequency shift EOM and
modulation transfer frequency stabilization, the temperature of the
laser tube is changed, the laser output frequency is correspondingly changed, the temperature of the
laser tube is continuously changed, meanwhile, a
signal generator is used for generating fast ramp
voltage, and the
wavelength of the laser is scanned; a scanning
voltage corresponding to a frequency locking
error signal zero point is recorded on an
oscilloscope, a plurality of groups of corresponding
error signal zero point
voltage values under different
laser tube temperatures are recorded, and a voltage-
frequency curve obtained through measurement is subjected to polynomial fitting to obtain a relational expression of the voltage-
frequency curve. When
laser frequency hopping locking is carried out, a
signal source is used for controlling a
frequency shift EOM to enable to-be-locked frequency of a laser to change, the voltage of the laser is controlled to change directly according to a voltage and
frequency curve obtained through calculation, and an
error signal is obtained to achieve rapid frequency hopping locking of the laser. And meanwhile, the laser has the characteristics of
high frequency hopping locking speed, large frequency hopping locking range and the like.