Feedback locking structure capable of simultaneously realizing laser frequency stabilization and noise suppression
A technology with stable frequency and noise suppression, which is applied in the field of lasers, can solve the problems of large volume and complex optical structure, and achieve the effect of simplifying the optical structure, reducing the overall volume, and realizing noise suppression
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[0042] Such as Figure 1-7 As shown, the feedback locking structure for simultaneously realizing laser frequency stabilization and noise suppression provided by this embodiment includes a frequency-scannable semiconductor laser 1, an electro-optic modulator 2, a beam splitter 3, an atomic saturable absorption optical path 4, an acousto-optic Modulator frequency shifting optical path 5, first photodetector 61, second photodetector 62, first mixer 71, second mixer 72, first phase shifter 81, second phase shifter 82, the first A servo circuit 91, a second servo circuit 92, an optical fiber interferometer 10 and a signal generator 11; the laser output end of the semiconductor laser 1 is connected to the laser incident end of the electro-optic modulator 2, and the laser light of the electro-optic modulator 2 The output end is connected to the laser incident end of the beam splitter 3, and the laser transmission end of the beam splitter 3 is connected to the laser entrance and exit ...
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