Method and device for measuring frequency stability of single-frequency pulse laser
A technology of frequency stability and pulsed laser, which is applied in the field of optoelectronics and measurement, can solve problems such as the difficulty of distinguishing the influence of lasers and interferometers, and achieve the effect of high design difficulty, simple device structure, and high precision
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] Such as figure 1 As shown, a device for measuring the frequency stability of a single-frequency pulsed laser, including a light source to be tested 1, a reference light source 2, a half-wave plate 3, a Glan prism 4, 1064nmHR-45 degree reflector 5, 1064nm-45 degree Half mirror 6, half-wave plate 2 7, Glan prism 2 8, half-wave plate 3 9, photoelectric probe 10, data acquisition card 11 and computer 12.
[0025] The reference light source 2 adopts the planar ring cavity (NPRO) laser of Innolight Company, which has high stability. The instantaneous spectral linewidth of the output 1064nm single-frequency linearly polarized laser is on the order of KHz, and the frequency drift per minute is less than 1MHz. The long-term frequency The drift is less than 45MHz / 3h. The light source 1 to be tested is a linearly polarized single-frequency pulse laser inj...
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