Abstract
We report on the development of a monolithic adaptive fiber optics collimator, with a large deflection angle and preserved near-diffraction-limited beam quality, that has been tested at a maximal output power at the 300 W level. Additionally, a new measurement method of beam quality ( factor) is developed. Experimental results show that the deflection angle of the collimated beam is in the range of 0–0.27 mrad in the direction and 0–0.19 mrad in the direction. The effective working frequency of the device is about 710 Hz. By employing the new measurement method of the factor, we calculate that the beam quality is and , which is in agreement with the result from the beam propagation analyzer and is preserved well with the increasing output power.
© 2016 Optical Society of America
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