Efficient generation of >2 W of green light by single pass frequency doubling in PPMgLN
Abstract
We report 32% efficient frequency doubling of single frequency 1029 nm light to green light at 514.5 nm using a single pass configuration. A congruent composition, periodically poled magnesium doped lithium niobate (PPMgLN) crystal of 50 mm length was used to generate a second harmonic power of 2.3 W. To our knowledge, this is the highest reported frequency doubling efficiency of any wavelength light in a PPMgLN crystal and also the highest reported SHG output power in the green for PPMgLN.
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