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Bright green light in the amplitude-squeezed state is experimentally generated from a frequency doubler with semi-monolithic F-P configuration consisting of an a-cut type-Ⅱ KTP crystal and a concave mirror. The amplitude-squeezing of 3.1±0.2dB at 540nm wavelength is obtained with the pump power of 50mW under the conditions of the two infrared modes in resonance and the green mode nearly in resonance.
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Keywords:
- extracavity frequency doubling /
- type Ⅱ phase matching /
- bright amplitude-squeezed state of light
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