中国物理B ›› 2012, Vol. 21 ›› Issue (9): 94208-094208.doi: 10.1088/1674-1056/21/9/094208
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
陈琤a b, 赵玲娟a, 邱吉芳a, 刘扬a, 王圩a, 娄采云b
Chen Cheng (陈琤)a b, Zhao Ling-Juan (赵玲娟)a, Qiu Ji-Fang (邱吉芳)a, Liu Yang (刘扬)a, Wang Wei (王圩)a, Lou Cai-Yun (娄采云)b
摘要: We report a monolithic integrated dual-wavelength laser diode based on a distributed Bragg reflector (DBR) composite resonant cavity. The device consists of three sections, a DBR grating section, a passive phase section, and an active gain section. The gain section facet is cleaved to work as a laser cavity mirror. The other laser mirror is the DBR grating, which also functions as a wavelength filter and can control the number of wavelengths involved in the laser action. The reflection bandwidth of the DBR grating is fabricated to have an appropriate value to make the device work at the dual-wavelength lasing state. We adopt the quantum well intermixing (QWI) technique to provide low-absorption loss grating and passive phase section in the fabrication process. By tuning the injection currents on the DBR and the gain sections, the device can generate 0.596 nm-spaced dual-wavelength lasing at room temperature.
中图分类号: (Semiconductor lasers; laser diodes)