Author(s): Xu, LH (Xu, Linhai); Wang, YF (Wang, Yufei); Jia, YF (Jia, Yufei); Zheng, WH (Zheng, Wanhua)

Source: OPTICS LETTERS Volume: 45 Issue: 18 Pages: 5097-5100 DOI: 10.1364/OL.400420 Published: SEP 15 2020

Abstract: An electrically driven dumbbell-shaped cavity semiconductor laser laterally confined by isolation and metal layers at 635 nm has been proposed. In the simulation, we systematically analyzed the Q-factors, mode intensity distributions, and directionality of the dumbbell-shaped cavity. A measured speckle contrast as low as 3.7%, emission divergence of 7.7 degrees, and maximum output power of about 2.36 W were obtained in the experiment. Such a semiconductor laser with low coherence, high power, and high directivity may provide great potential application value in laser display and imaging. (C) 2020 Optical Society of America

Accession Number: WOS:000577110800035

PubMed ID: 32932462

ISSN: 0146-9592

eISSN: 1539-4794

Full Text: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-18-5097