Generation of Phase-Conjugate Wave by a Linear Optics Using a Multidither Adaptive Optical System.
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概要
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A phase-conjugation with a carbon dioxide laser has been demonstrated by a linear optics using a Multidither Adaptive Optical System (MAOS) with a nine-segmented adaptive mirror. In this study, a retroreflective characteristics, which features the phase-conjugate mirror, was observed with an optical configuration with the double-pass phase-reconstruction scheme. The laser beam when being tilted with a maximum tilt angle of ± 80 μm rad was retroreflected with a high tracking accuracy of < 6 μm rad. In addition, the laser beam distorted with Ge three phase-plates was phase-compensated automatically with the phase-conjugate adaptive mirror. The laser beam was then converged within a nearly diffraction limit, and a high Strehl Ratio of > 0.8 was achieved. The converged beam patterns obtained at the focal point were agreed well with the theoretical analysis. These experimental results confirmed that the phase-conjugate wave was generated automatically by the linear adaptive optics.
- 社団法人 レーザー学会の論文
社団法人 レーザー学会 | 論文
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