Method for acquiring high-power broadband green-light optical frequency comb
An optical frequency comb and green light optics technology, applied in optics, nonlinear optics, lasers, etc., can solve problems such as narrow spectrum, low pulse power, and difficult control of time-frequency characteristics, so as to suppress additional phase noise, improve efficiency and , Overcoming the narrowing effect of the pulse spectrum
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[0053] Such as figure 2 As shown, in this embodiment, the frequency standard is a frequency-stabilized continuous laser, and as another embodiment of the present invention, the frequency standard is a radio frequency atomic clock.
[0054] Such as Figure 7 As shown, in this embodiment, the optical frequency doubling refers to using the second-order nonlinear effect in the nonlinear crystal to frequency-double the optical frequency ω of the incident light, and then generate frequency-doubled light with a frequency of 2ω.
[0055] In this embodiment, the nonlinear crystal is a barium metaborate crystal. As another embodiment of the present invention, the nonlinear crystal is also a periodically poled lithium niobate crystal.
[0056] In this embodiment, a frequency doubling crystal is used to optically frequency-double the output pulses of each ytterbium-doped optical frequency comb to generate frequency-doubled green light with a wavelength of preferably 532 nm.
[0057] Su...
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