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AssigneeU.S. Philips Corporation
InventorsAntonius H. J. Venhuizen, Gerardus L. J. A. Rikken, Constance J. E. Seppen
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An optical component (7) is described in which the frequency of electromagnetic radiation is raised and which comprises a non-linear optical medium and an optical modulation structure (21) so as to compensate for the wavelength dispersion in the non-linear optical material so that there is phase matching. By providing a satellite layer (15) having a high refractive index proximate to the modulation structure (21), the wavelength at which phase matching occurs is not critical for the layer thickness of the non-linear optical medium. An opto-electronic device (1) for raising the frequency of electromagnetic radiation, comprising such a component (7) as a frequency-raising element is also described.
An optical component for generating a higher harmonic wave from a fundamental wave of electromagnetic radiation, which component comprises a non-linear optical medium having a refractive index n.sub.1, in which the frequency is raised, and an optical modulation structure, characterized in that a satellite layer of a linear optical material having a refractive index n.sub.2, in which n.sub.2 >n.sub.1, is provided proximate to the modulation structure for concentrating the fundamental wave and the generated higher harmonic wave in said satellite layer.
Dependencies are inferred from the claim text.