Highly efficient solid-state Raman yellow-orange lasers created by enhancing the cavity reflectivity

Y. F. Chen*, D. Li, Y. M. Lee, C. C. Lee, H. Y. Huang, C. H. Tsou, H. C. Liang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A new, to the best of our knowledge, output coupler (OC) with enhancement of the cavity reflectivity is proposed to remarkably elevate the output powers and efficiencies of diode-pumped Nd:GdVO4/KGW Raman yellow-orange lasers. The cavity reflectivity is effectively increased by using the double-sided dichroic coating on the OC. In comparison with the conventional single-sided coating, the conversion efficiency can be boosted from 15% to 26.3% in the experiment of a yellow laser at 578.8 nm, and the maximum output power can be increased from 5.7 to 10.5 W in the quasi-continuous-wave mode with 50% duty cycle and frequency of 500 Hz. Furthermore, in the operation of an orange laser at 588 nm, the maximum output power can be improved from 5.6 to 7.0 W by replacing the conventional OC with the new one.

Original languageEnglish
Pages (from-to)797-800
Number of pages4
JournalOptics Letters
Volume46
Issue number4
DOIs
StatePublished - 15 Feb 2021

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