Second Stokes oscillation and Raman gain-guiding in micro-lensed monolithic diamond Raman lasers

Savitski, Vasili and Demetriou, Giorgos and Reilly, Sean and Liu, Hangyu and Gu, Erdan and Dawson, Martin and Kemp, Alan (2018) Second Stokes oscillation and Raman gain-guiding in micro-lensed monolithic diamond Raman lasers. In: 8th EPS-QEOD Europhoton Conference, 2018-09-02 - 2018-09-07.

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    Abstract

    Second Stokes generation at 620nm in 2mm long micro-lensed monolithic diamond Raman lasers is reported with 63% conversion efficiency. The Raman intracavity mode radius was found to be half that expected from the ABCD calculations of the resonator mode. Raman gain-guiding mechanism is suggested as an explanation.