APPARATUS AND METHOD FOR PRECISELY WAVELENGTH-TUNING SINGLE LONGITUDINAL MODE TUNABLE LASER BEAMS BY UTILING WEDGE PRISM

摘要

The present invention relates a method an apparatus capable of controlling an accurate wavelength of a wavelength conversion laser while continuously maintaining a single class mode without mode hopping of a class mode by rotating a prism instead of a wavelength conversion mirror by using a wedge prism. In the method, a wedge prism(4) is inserted into a single class mode wavelength conversion laser resonator and rotates to thereby control a wavelength of a single class mode wavelength conversion laser accurately.