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Conferences > NLO > 2023 > W1A > W1A.4

Efficient Parametric Downconversion by Gain-trapped OPA in Thin-film Lithium Niobate

Marin Hamrouni, Marc Jankowski, Alex Hwang, Nayara Jornod, Jatadhari Mishra, Hubert Stokowski, Timothy P. McKenna, Carsten Langrock, Thomas Südmeyer, Amir H. Safavi-Naeini, and M. M. Fejer

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Abstract

We demonstrate efficient optical parametric amplification in thin-film-lithium-niobate nanowaveguides dispersion-engineered to temporally trap the generated signal and idler. We observe parametric gains >30 dB/pJ, enabling down-conversion of sub-10-pJ pump pulses to coherent 1.35-pJ idler pulses with a 140-nm-wide spectrum centered around 3200 nm.

© 2023 The Author(s)

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