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DBR-free semiconductor disc laser on SiC heatspreader emitting 10.1 W at 1007 nm

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Original languageEnglish
Pages (from-to)1537-1539
Number of pages3
JournalElectronics Letters
Issue number23
Publication statusPublished - 9 Nov 2017
Publication typeA1 Journal article-refereed


We report a distributed Bragg reflector-free semiconductor disc laser which emits 10 W continuous wave output power at a wavelength of 1007 nm when pumped with 40 W at 808 nm, focused into a 230 μm diameter spot on the gain chip. By introducing a birefringent filter plate in the laser cavity the wavelength could be tuned from 995 to 1020 nm. The laser consisted of a gain chip located at the beam waist of a linear concentric resonator with an output coupling of 2.15%. The gain chip consists of a 1.574-μm-thick resonant periodic gain structure, with ten In0.13Ga0.87As quantum wells embedded in strain-compensating GaAs0.94P0.06 barrier layers, van der Waals bonded to a silicon carbide intra-cavity heat spreader.

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Field of science, Statistics Finland