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Electro-optic comb pumped optical parametric oscillator with flexible repetition rate at GHz level

Abstract : We present a gigahertz (GHz)-repetition-rate optical parametric oscillator (OPO) pumped by an electro-optic comb at 1.03 µm, delivering sub-picosecond signal pulses across 1.5–1.7 µm from a MgO-doped periodically poled LiNbO3 crystal. Using a pump power of 5 Watts at 14.2 GHz repetition rate, 378 mW of signal power is obtained at 1.52 µm from a subharmonic cavity, corresponding to a signal extraction efficiency of 7.6%. By cascading a Mach–Zehnder modulator, the pump pulse repetition rate can be divided by any integer number from one to 14, allowing the OPOto operate with a flexible repetition rate from 1 to 14.2 GHz. A strategy leading to quasi-continuous repetition rate tunability of the OPOis also discussed.
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https://hal.archives-ouvertes.fr/hal-03177286
Contributor : Eric Freysz <>
Submitted on : Thursday, March 25, 2021 - 8:51:30 AM
Last modification on : Friday, March 26, 2021 - 3:20:33 AM

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Hanyu Ye, Valerian Freysz, Ramatou Bello-Doua, Lilia Pontagnier, Giorgio Santarelli, et al.. Electro-optic comb pumped optical parametric oscillator with flexible repetition rate at GHz level. Optics Letters, Optical Society of America - OSA Publishing, 2021, 46 (7), pp.1652-1655. ⟨10.1364/OL.421621⟩. ⟨hal-03177286⟩

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