Author:
Karnik Tushar Sanjay,Diehl Laurent,Dao Khoi Phuong,Du Qingyang,Pfluegl Christian,Vakhshoori Daryoosh,Hu Juejun
Abstract
We demonstrate, for the first time, an on-chip closed-loop wavelength beam combining of quantum cascade laser arrays using a monolithic structure. The technology can be used to manufacture at low-cost, compact, high-power and/or broadband mid-infrared sources.