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

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)981-984
JournalIEEE Photonics Technology Letters
Volume30
Issue number11
Early online date13 Feb 2018
DOIs
Publication statusPublished - 2018
Publication typeA1 Journal article-refereed

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.

Keywords

  • Diamond, Diamond Raman lasers, Laser excitation, Lenses, Microchip lasers, Power generation, Pulsed lasers, Pump lasers, Q-switched lasers, Raman lasers, Stimulated emission, Visible lasers

Publication forum classification

Field of science, Statistics Finland