Sub-100 ps monolithic diamond Raman laser emitting at 573 nm

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Nikkinen, Jari and Savitski, Vasili and Reilly, Sean and Dziechciarczyk, Łukasz and Härkönen, Antti and Kemp, Alan and Guina, Mircea (2018) Sub-100 ps monolithic diamond Raman laser emitting at 573 nm. IEEE Photonics Technology Letters, 30 (11). pp. 981-984. ISSN 1041-1135 (https://doi.org/10.1109/LPT.2018.2806183)

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Abstract

We report a compact and efficient picosecond diamond Raman laser at 573 nm wavelength. The laser consists of a 0.5 mm thick single-crystal synthetic diamond coated to form a plane–plane laser resonator, and pumped at 532 nm by a frequency-doubled Q-switched microchip laser system. The pump delivers 85 ps pulses at 100 kHz repetition rate at a maximum average power of ~500 mW. We demonstrate 1st Stokes emission from the diamond Raman laser with maximum power of 175 mW, corresponding to a conversion efficiency of 47% and a pulse duration of 71 ps. Substantial pulse shortening is obtained by proper adjustment of the pump spot diameter on the diamond sample. A minimum pulse duration of 39 ps is reported for a conversion efficiency of 36% and 150 mW output power. The simplicity of the architecture makes the system highly appealing as a yellow picosecond laser source.

ORCID iDs

Nikkinen, Jari, Savitski, Vasili ORCID logoORCID: https://orcid.org/0000-0001-5261-1186, Reilly, Sean ORCID logoORCID: https://orcid.org/0000-0002-4506-7909, Dziechciarczyk, Łukasz, Härkönen, Antti, Kemp, Alan ORCID logoORCID: https://orcid.org/0000-0002-1076-3138 and Guina, Mircea;
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