Nested double-self-adaptive optical system

An adaptive optics, nested technology, applied in the field of adaptive optics, which can solve problems such as insufficient correction ability

Active Publication Date: 2015-02-18
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the problem of insufficient correction ability of the conventional adaptive optics system when there is a large internal dynamic aberration disturbance, and adopt a nested dual adaptive optics system to work together to eliminate internal disturbances and atmospheric aberrations. Effects of turbulence

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, a nested dual adaptive optics system includes a telescope 1, a beam reduction system 2, a beacon light source 3, a first beamsplitter 4, a second beamsplitter 6 and a third beamsplitter 10, and the first wavefront correction device 5, second wavefront corrector 9, first wavefront detector 7 and second wavefront detector 11, first wavefront controller 8 and second wavefront controller 12, imaging system 13, etc., its characteristics In the beacon light source 3, the first wavefront corrector 5, the first wavefront detector 7 and the first wavefront controller 8 form an internal channel adaptive optical system, and its working wavelength is λ 1 ; The second wavefront corrector 9, the second wavefront detector 11 and the second wavefront controller 12 form an external channel adaptive optics system, and its opera...

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Abstract

The invention discloses a nested double-self-adaptive optical system which comprises a telescope, a beam shrinking system, a beacon light source, a spectroscope, two wavefront probes, two wavefront correctors, two wavefront controllers, an imaging system and the like. The system is characterized by mainly comprising inner and outer channel self-adaptive optical systems, wherein the inner channel self-adaptive optical system is used for correcting inner dynamic aberration disturbances caused by factors such as inner airflow movement and foundation vibration, and the outer channel self-adaptive optical system is used for correcting atmosphere turbulences and correcting residual signals corrected by the inner channel self-adaptive optical system for the second time. The system disclosed by the invention has smaller residual signal variance compared with the residual signal variance of the conventional self-adaptive optical system used for simultaneously correcting the inner dynamic aberration disturbances and atmosphere turbulences.

Description

technical field [0001] The invention relates to an adaptive optics system, especially a nesting system capable of overcoming the insufficient correction ability of conventional adaptive optics systems when they are simultaneously affected by external atmospheric turbulence disturbances and dynamic and large-scale internal aberration disturbances, and improving system performance. A dual adaptive optics system belongs to the technical field of adaptive optics. Background technique [0002] Adaptive optics is a remarkable technique for detecting and correcting wavefront aberrations in optical systems in real time. The basic principle is to use a wavefront sensor to measure the wavefront aberration, and calculate the control signal of the wavefront corrector through a certain control algorithm to adjust its surface shape, thereby compensating for the aberration. Astronomical observation is one of the first fields in which adaptive optics technology has been successfully used t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/06G02B27/00G01J9/00
Inventor 李新阳罗奇
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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