Dispersion tuning of a narrow-linewidth picosecond OPO based on chirped quasi-phase matching with a volume Bragg grating

Delphine Descloux; Guillaume Walter; Jean-Baptiste Dherbecourt; Guillaume Gorju; Jean-Michel Melkonian; Myriam Raybaut; Cyril Drag; Antoine Godard

doi:10.1117/12.2252168

20 February 2017 Dispersion tuning of a narrow-linewidth picosecond OPO based on chirped quasi-phase matching with a volume Bragg grating

Delphine Descloux, Guillaume Walter, Jean-Baptiste Dherbecourt, Guillaume Gorju, Jean-Michel Melkonian, Myriam Raybaut, Cyril Drag, Antoine Godard

Author Affiliations +

Proceedings Volume 10088, Nonlinear Frequency Generation and Conversion: Materials and Devices XVI; 1008814 (2017) https://doi.org/10.1117/12.2252168
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We report on a widely tunable synchronously-pumped picosecond OPO combining an aperiodically poled MgOdoped LiNbO₃ crystal as a broadband gain medium and an intracavity axially chirped volume Bragg (VBG). Owing to the high dispersion induced by the chirped VBG, only a narrow spectral band, corresponding to a thin slice of the VBG, satisfies the synchronous-pumping condition. At a fixed position, the VBG is thus a narrow-band filtering element; variation of its position along the cavity axis enables to tune the idler wavelength over 215nm around 3.82 μm. Rapid continuous tuning over 150nm in 100 ms is also demonstrated.

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Delphine Descloux, Guillaume Walter, Jean-Baptiste Dherbecourt, Guillaume Gorju, Jean-Michel Melkonian, Myriam Raybaut, Cyril Drag, and Antoine Godard "Dispersion tuning of a narrow-linewidth picosecond OPO based on chirped quasi-phase matching with a volume Bragg grating", Proc. SPIE 10088, Nonlinear Frequency Generation and Conversion: Materials and Devices XVI, 1008814 (20 February 2017); https://doi.org/10.1117/12.2252168

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