| 摘要 |
The invention relates to a nonlinear device and application to a frequency doubler, comprising a nonlinear medium 1 receiving a pump wave Fp. The nonlinear medium has a thickness E equal to the coherence length Fc of a harmonic of the pump wave. In addition, it is placed in a resonant cavity tuned to the wavelength of this harmonic. Applications: blue laser frequency doubler. <IMAGE>
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