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

Year: 2021
Type: article
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 L i N b O 3 crystal. Using a pump power of 5 W 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 OPO to operate with a flexible repetition rate from 1 to 14.2 GHz. A strategy leading to quasi-continuous repetition rate tunability of the OPO is also discussed.
DOI: 10.1364/ol.421621
Authors: Hanyu Ye, Valerian Freysz, Ramatou Bello-Doua, Lilia Pontagnier, Giorgio Santarelli, Eric Cormier, Eric Freysz
Language: English
Open Access status: bronze
Awards: G1068196549, G1876112825, G434337789, Ultrashort pulsed kW-class laser with unprecedented flexible GHz burst operation for high precision high-throughput industrial manufacturing, G471331628, Initiative d’excellence de l’Université de Bordeaux, G7240651115, G8003660412, G8549634154
OpenAlex ID: W3133592986
FWCI: 0.418
Cites: 19
Cited by: 7
Related to: 10