0.7 MW Yb:YAG pumped degenerate optical parametric oscillator at 2.06 μm

Li A, Bahri M, Gray RM, Choi S, Hoseinkhani S, Srivastava A, Marandi A, Fattahi H (2024)

Publication Type: Journal article

Publication year: 2024

Journal

APL Photonics American Institute of Physics (AIP)

Book Volume: 9

Article Number: 100808

Journal Issue: 10

DOI: 10.1063/5.0230388

Abstract

Frequency comb spectroscopy and field-resolved broadband absorption spectroscopy are promising techniques for rapid, precise, and sensitive detection of short-lived atmospheric pollutants on-site. Enhancing detection sensitivity in absorption spectroscopy hinges on bright sources that cover molecular resonances and fast signal modulation techniques to implement lock-in detection schemes efficiently. Yb:YAG thin-disk lasers, combined with optical parametric oscillators (OPOs), present a compelling solution to fulfill these requirements. In this work, we report on a bright OPO pumped using a Yb:YAG thin-disk Kerr-lens mode-locked oscillator delivering 2.8 W, 114 fs pulses at 2.06 μm with an averaged energy of 90 nJ. The OPO cavity operates at 30.9 MHz repetition rate—twice the repetition rate of the pump laser—allowing for a broadband, efficient, and dispersion-free modulation of the OPO output pulses at a 15.45 MHz rate. With 13% optical-to-optical conversion efficiency and a high-frequency intra-cavity modulation, this scalable scheme holds promise to advance the detection sensitivity and frontiers of field-resolved spectroscopy.

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE) California Institute of Technology (Caltech) US United States (USA) (US)

How to cite

APA:

Li, A., Bahri, M., Gray, R.M., Choi, S., Hoseinkhani, S., Srivastava, A.,... Fattahi, H. (2024). 0.7 MW Yb:YAG pumped degenerate optical parametric oscillator at 2.06 μm. APL Photonics, 9(10). https://doi.org/10.1063/5.0230388

MLA:

Li, Anni, et al. "0.7 MW Yb:YAG pumped degenerate optical parametric oscillator at 2.06 μm." APL Photonics 9.10 (2024).

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