Masanao Kamata and his research team have published a paper in Nature Communications entitled “Chip-scale high-peak-power semiconductor/solid-state vertically integrated laser” and the paper was chosen as an “Editor’s Highlight.”

Tokyo Laboratory 04 at the R&D Center, Sony Group Corporation has successfully developed the world's first laser light source that simultaneously achieves a small size of only 1 mm3 (less than 1/1,000 of the volume ratio of conventional lasers * 1) and high peak power exceeding kilowatts (1,000 times the peak power ratio of conventional semiconductor lasers * 2) by integrating two laser resonators, a semiconductor laser and a solid-state laser, through a solid-state laser medium. The new laser source is expected to be used in a wide range of applications, including laser remote sensing such as LiDAR, biomedical photonics applications, and industrial laser micromachining.

*1 Excludes thermoelectric cooler, etc.
*2 As a single emitter

Image of ultra-compact laser output device Schematic of chip-scale semiconductor/solid-state vertically integrated laser.

You can read the paper in Nature
Communications here.

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November 30, 2022