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Stress-induced birefringence in a single-transverse-mode YAG laser is well compensated simply by having the end mirror one Rayleigh range away from the gain.
Trapping and switching of liquid crystal micron-size droplets using a lensed fiber with 1.55 mum cw light is demonstrated. Intensity modulation due to droplet rotation is achieved by controlling the power and polarization of pump light.
We propose a convenient method for controlling the three-dimensional polarization vector at the focus of a high-numerical-aperture lens using a linearly polarized input field. This form of polarization microscopy requires no polarization optics.
We report a compact 5.5 W mid-IR source that simultaneously generates four wavelengths (3.5 mum, 4.3 mum, 4.6 mum and 5.5 mum) collinearly from a single ZnGeP2 OPO pumped by Type-II KTP OPO via wavelength-dependent polarization rotation.
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