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Ultra-broadband Optical Frequency Doubler at Telecom Wavelength

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Abstract

We present dispersion-engineered PPLN nanowaveguides with a geometry designed for broadband frequency doubling at telecom wavelengths with low pump energy. We realize a 45-nm-broad transfer function in a 5-mm-long crystal pumped by fs-pulses.

© 2022 The Author(s)

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