High power 980 nm broad area distributed feedback laser with first-order gratings

• 作 者: 董振 赵懿昊 张奇 王翠鸾 李伟 刘素平 马骁宇
• 机 构: National Engineering Research Center for Optoelectronic Devices, Institute of Semiconductors, Chines
• 出 处: Journal of Semiconductors
• 发表日期: 2016年02期
• 关键词: locking lithography pumping fabricate stripe length grating cladding stabilized

To achieve high pumping efficiency and stability,a wavelength stabilized 980 nm broad area distributed feedback laser was realized.A nanoimprint lithography technique was used to fabricate the first-order gratings.The stripe width was 90 μm and the cavity length was 2 mm.Under continuous wave condition,the output laser power reached 1.2 W,with the slope efficiency of 0.7 W/A.The current and thermal dependence of the spectrum peak was measured to be approximately 0.19 nm/A and 0.064 nm/K respectively,and the wavelength-locking range reached over 50 ℃.

To achieve high pumping efficiency and stability, a wavelength of 980 nm broad area distributed feedback laser was realized. A nanoimprint lithography technique was used to fabricate the first-order gratings. The stripe width was 90 μm and the cavity length was 2 mm. Under continuous wave condition, the output laser power reached 1.2 W, with the slope efficiency of 0.7 W / A. The current and thermal dependence of the spectrum peak was measured to be approximately 0.19 nm / A and 0.064 nm / K respectively, and the wavelength -locking range reached over 50 ℃.