| 主权项 |
1. An analyzer for analyzing a spatial intensity distribution of a focused pulsed laser beam in a focal plane, comprising downstream of said focal plane and on an optical path:
a shaping lens, a device for partially sampling a shaped beam from the shaping lens, a heat sink intended to absorb the unsampled beam, a photodiode placed in the heat sink, and an imaging lens configured to form images of the focal plane on an image sensor; the analyzer further comprising: a motorization of the shaping lens to translate the shaping lens along an axis of the optical path, a motorization of the imaging lens to translate the imaging lens in a plane perpendicular to the axis of the optical path, a motorization of the image sensor to translate the sensor along the axis of the optical path, an electronic unit for controlling each said motorization, and an electronic unit for synchronizing the image sensor, said electronic unit is connected to the photodiode and is configured to synchronize an image capture with laser pulses or in the laser pulses of the focused pulsed laser beam, an electronic unit for adjusting an aperture and/or a gain of the image sensor, and a software interface for parameterizing and piloting controlling, synchronizing and adjusting carried out by the respective electronic units. |
