Dual-refraction dual-frequency Zeeman laser device with stable frequency difference and its method for stabilizing frequency difference
A dual-frequency laser and stabilization method technology, applied in the field of lasers, can solve problems such as frequency difference drift, achieve the effects of reducing frequency difference drift, improving reliability and frequency stability, and adding frequency stabilization devices
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Embodiment 1
[0028] Example 1:
[0029] Two-dimensional afterburner ring to adopt circular 7 (such as figure 2 shown) or square 10 (as image 3 shown) as an example. The force ring 7 is fastened on the output window 13 of the full-cavity laser or on the anti-reflection window 9 of the half-cavity laser through four flat top screws 8 . Get the required frequency difference by adjusting the tightness of the top wire and fix the force ring on the window. Then use epoxy resin to stick the top wire and the window, the top wire and the force ring respectively, so as to ensure its reliability. The materials of the energizing ring and the top wire are valves whose linear expansion coefficient is consistent with that of the anti-reflection window. The relationship between the metal and the photoelastic element material k4 glass should meet the matching and sealing relationship, that is, the difference between the linear expansion coefficients of the two materials should be less than 10%, which...
Embodiment 2
[0031] Figure 5It is a schematic structural diagram of a half-cavity Zeeman-birefringence dual-frequency laser system equipped with a frequency difference stabilization device. It mainly includes a laser gain tube 11, an anti-reflection window 9, a reflector 16, a two-dimensional force ring 7, a packaged quartz shell 12, and an external lateral direction formed by a magnetic strip 14 arranged outside the quartz packaged shell and arranged up and down. A semi-cavity Zeeman-birefringence dual-frequency laser and a frequency stabilization device composed of a magnetic field, the frequency stabilization device consists of a Wollaston prism 18, a photodetector 19, a photoelectric receiving module 21, an AD / DA data acquisition card 24, and a A computer 25 with control software, a piezoelectric amplifier module 22 and piezoelectric ceramics 17 are formed. In practical application, the photoelectric receiving module 21 and the piezoelectric amplifying module 22 are integrated and as...
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