Efficient quasi-phase-matched frequency doubling with phase compensation by a wedged crystal in a standing-wave external cavity.

Abstract

In standing-wave enhancement cavities for frequency doubling, second-harmonic fields are generated in both directions of propagation. To add the fields coherently, one should compensate for the phase shifts introduced by dispersive elements in the cavity. We experimentally demonstrate phase compensation in a compact standing-wave frequency-doubling cavity… (More)

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