| 摘要 |
A semiconductor laser includes a semiconductor laser element that emits electromagnetic radiation with at least one fundamental wavelength when in operation, an end mirror, a deflecting mirror reflective as a function of polarization located between the semiconductor laser element and the end mirror, and at least one optically nonlinear crystal configured for type II frequency conversion of the fundamental wavelength and which satisfies a λ/2 condition for the fundamental wavelength.
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