OSE PHD Student, Mr. Mingyang Zhang shares paper on A single-mode high-power in-well pumped hybrid-MECSEL at 589 nm

Departmental News

Mr. Mingyang Zhang

Posted: January 31, 2023


We demonstrate an in-well pumped high-power hybrid MECSEL (H-MECSEL) formed by sandwiching the MQW semiconductor gain membrane between two SiC heat spreaders, one of which is mirrored with a DBR. We obtain 28 W CW output power around 1178 nm with a slope efficiency of 38% using multipass pumping at 1070 nm. Employing intracavity spectral filtering and frequency doubling, we demonstrate single-mode operation with 8 W of output power at 589 nm and a linewidth of ~4 MHz. We demonstrate preliminary (low-power) wavelength stabilization to the Na D2a transition. Work is underway for full power stabilization towards an on-sky demonstration.

Authors: Mingyang Zhang, Alexander R. Albrecht, Gar-Wing Truong, Garrett D. Cole, and Mansoor Sheik-Bahae


Mingyang Zhang received a B.S. degree in optical information of science and technology from Guizhou University, Guiyang, China, in 2015 and an M.S. degree with distinction in optics and photonics from Imperial College London, London, the UK, in 2016. He is currently pursuing a Ph.D. degree in optical science and engineering at the University of New Mexico, Albuquerque, the US. From 2016 to 2017, he was an Optical Engineering with Han’s Laser Technology Co., Ltd, Shenzhen, China. From 2017 to 2018, he was a Laser Engineer with Tsinghua University, Beijing, China. Since 2018, he has been a Ph.D. Student in the Physics Department, the University of New Mexico, Albuquerque. His research interests include ultrafast science, laser technology, metamaterials, and semiconductors.

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