Tunable laser pumping system and method for obtaining tunable laser by using same
A laser and pumping technology, applied in the optical field, can solve the problem that the high-energy tunable laser pumping optical path is difficult to take into account the needs of optimal pumping conditions for various tunable laser working substances, and achieves the effect of simple structure and low cost.
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specific Embodiment approach 1
[0023] Specific implementation mode one: see figure 1 with figure 2 Describe this embodiment, a tunable laser pumping system described in this embodiment, which includes a servo motor 1, a gradient reflectivity beam splitter 2, an oscillator 3, an amplifier 4, an aperture 5, and an optical attenuation sheet 6 , photodetector 7, computer 8 and total mirror 9;
[0024] The servo motor 1 is used to control the movement of the gradient reflectivity beam splitter 2, so that the laser spot incident on the gradient reflectivity beam splitter 2 moves laterally on its surface,
[0025] The laser light is incident on the gradient reflectivity beam splitter 2, and the light reflected by the gradient reflectivity beam splitter 2 is used as the pumping source of the oscillator 3, and the oscillator 3 outputs a tunable seed laser under the action of the pump source, and is incident on the amplifier 4,
[0026] The light transmitted by the gradient reflectivity beam splitter 2 is inciden...
specific Embodiment approach 2
[0031] Embodiment 2: A method for obtaining a tunable laser by using a tunable laser pump system described in Embodiment 1, the method includes the following steps:
[0032] Step 1: The servo motor 1 remains stationary, so that the laser light is incident on the gradient reflectivity beam splitter 2, and the average value I of the laser light intensity signal output by the photodetector 7 is collected by the computer 8 with the sampling frequency f 0 ,
[0033] Step 2: Control the servo motor 1 through the computer 8, so that the servo motor 1 drives the gradient reflectivity beam splitter 2 to move in a certain direction, and the computer 8 collects the average value I of the laser light intensity signal output by the photodetector 7 in real time with a frequency f 1 , and compare the I in real time 0 with I 1 the value of
[0034] If I 1 ≥I 0 , so that the servo motor 1 drives the gradient reflectivity beam splitter 2 to continue to move in the current direction of moti...
specific Embodiment approach 3
[0038] Embodiment 3: The difference between this embodiment and the method of obtaining a tunable laser by using a tunable laser pump system described in Embodiment 2 is that the frequency f ranges from 1 Hz to 1 KHz.
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