Zhang Yejin, Su Yanmei, Bi Yu, Pan Jiaoqing, Yu Hongyan, Zhang Yang, Sun Jie, Sun Xiuyan, Chong Ming
Opt Lett. 2018 Jan 1;43(1):86-89. doi: 10.1364/OL.43.000086.
In this Letter, a new type of single-mode slotted laser used for an on-chip light source in photonic integrated circuits is proposed. An inclined light beam with a low vertical divergence angle can be directly coupled into the surface grating of the silicon to form an integrated light source. Experimentally, a III-V laser with a 54.6° inclined angle and a vertical divergence angle of 1.7° is achieved by introducing a kind of specially distributed microstructure. The side mode suppression ratio is better than 45 dB, and the continuous wave output power reaches 6.5 mW at room temperature. We report the inclined emitting microstructured single-mode laser with a low divergence angle for the first time, to the best of our knowledge.
在本信函中，提出了一种用于光子集成电路片上光源的新型单模开槽激光器。具有低垂直发散角的倾斜光束可直接耦合到硅的表面光栅中，以形成集成光源。通过引入一种特殊分布的微结构，实验上实现了倾斜角为54.6°、垂直发散角为1.7°的III-V族激光器。边模抑制比优于45 dB，室温下连续波输出功率达到6.5 mW。据我们所知，我们首次报道了具有低发散角的倾斜发射微结构单模激光器。
