Miniature GHz repetition-rate femtosecond solid-state laser cavity in a glass substrate

Antoine Delgoffe; Saood Nazir; Sargis Hakobyan; Clemens Hoenninger; Yves Bellouard

doi:10.1117/12.2649856

17 March 2023 Miniature GHz repetition-rate femtosecond solid-state laser cavity in a glass substrate

Antoine Delgoffe, Saood Nazir, Sargis Hakobyan, Clemens Hoenninger, Yves Bellouard

Proceedings Volume PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII; PC124110T (2023) https://doi.org/10.1117/12.2649856
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We report on a new concept of credit card-sized free-space Yb:KYW laser cavity designed to generate femtosecond pulses at a GHz repetition-rate. Optical components are assembled directly, without mounts, inside slots fabricated by direct laser writing and chemical etching in a rigid fused-silica substrate, ensuring a very precise pre-alignment. The alignment fine-tuning is provided by one-time actuators fabricated within the glass substrate itself, which are remotely activated using femtosecond laser-induced micro-deformation in the bulk, ensuring a stable and lasting lasing operation. As a proof-of-concept, efficient CW and SESAM-enabled passive mode-locking regimes are demonstrated.

Conference Presentation

Citation Download Citation

Antoine Delgoffe, Saood Nazir, Sargis Hakobyan, Clemens Hoenninger, and Yves Bellouard "Miniature GHz repetition-rate femtosecond solid-state laser cavity in a glass substrate", Proc. SPIE PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII, PC124110T (17 March 2023); https://doi.org/10.1117/12.2649856

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