Armstrong Darrell J, Phillips Mark C, Smith Arlee V
Sandia National Laboratories, Department 1118, Albuquerque, New Mexico 87185-1423, USA.
Appl Opt. 2003 Jun 20;42(18):3550-4. doi: 10.1364/ao.42.003550.
We show how a passive image-rotating optical resonator can be used to convert a linearly polarised, lowest-order Gaussian beam into a radially polarized beam. The image and polarization rotation of the cavity removes the frequency degeneracy of the modes, making it possible to select the radially polarized mode by cavity tuning. With the addition of gain, the same cavity should operate as a radially polarized laser when injection seeded at the proper wavelength.
我们展示了无源图像旋转光学谐振器如何用于将线偏振的最低阶高斯光束转换为径向偏振光束。腔的图像和偏振旋转消除了模式的频率简并性，从而可以通过腔调谐来选择径向偏振模式。加入增益后，当在适当波长注入种子光时，同一个腔应可作为径向偏振激光器工作。
