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Second harmonic generation in free-standing lithium niobate photonic crystal L3 cavity

: Diziain, Severine; Geiss, Reinhard; Zilk, Matthias; Schrempel, Frank; Kley, Ernst-Bernhard; Tünnermann, Andreas; Pertsch, Thomas


Applied Physics Letters 103 (2013), No.5, Art. 051117, 5 pp.
ISSN: 0003-6951
ISSN: 1077-3118
Journal Article
Fraunhofer IOF ()

We report on second harmonic generation in a photonic crystal L3 cavity drilled in a thin self-suspended lithium niobate membrane. The cavity, resonant for the pump beam in the telecom wavelength range, exhibits a quality factor of around 500. Second harmonic generation has been measured with a low power continuous laser. A conversion efficiency of 6.4×10-9 has been estimated with an input coupled power of 53 µW.