Room-temperature continuous-wave operation of membrane distributed-reflector laser. (20th October 2015)

• Record Type: Journal Article
• Authors: Hiratani, Takuo; Inoue, Daisuke; Tomiyasu, Takahiro; Atsuji, Yuki; Fukuda, Kai; Amemiya, Tomohiro; Nishiyama, Nobuhiko; Arai, Shigehisa
• Is Part Of: Applied physics express. Volume 8:Number 11(2015:Nov.)
• Publication Date: 2015-10-20
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.8.112701
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: In this paper, we report on the first ever demonstration of a continuous-wave operation of an injection-type membrane distributed-reflector (DR) laser at room temperature. A threshold current of 250 µA was obtained with a stripe width of 0.7 µm, a DFB region length of 30 µm, and a DBR region length of 90 µm. An external differential quantum efficiency of 11% with a light output ratio between the front and the rear of 6.7 was obtained at the front waveguide.