Design and Realization of InP/AlGaInAs Multiple Quantum Well Ring Laser

• 作 者: 谢生 郭婧 管坤 毛陆虹 郭维廉 齐利芳 李献杰
• 机 构: School of Electronic Information Engineering, Tianjin University,The 13th Research Institute of Chin
• 出 处: Transactions of Tianjin University
• 发表日期: 2014年06期
• 关键词: waveguide lasing unidirectional dimensions radius curvature suppression numerica

Using beam propagation method(BPM), key optical design parameters of InP/AlGaInAs multiple quantum well(MQW) ring laser were numerically analyzed. The influences of waveguide dimensions, curvature radius and gap size on the coupling efficiency were discussed. An InP/AlGaInAs MQW ring laser with radius of 350 μm was designed and realized. The experimental results show that the designed device, lasing at 1 563.2 nm with side mode suppression ratio higher than 20 dB, exhibited unidirectional bistability between the clockwise and counterclockwise modes.

The influences of waveguide dimensions were numerically analyzed. The influences of waveguide dimensions were calculated on the coupling efficiency. An InP / AlGaInAs (BPM), the key optical design parameters of InP / AlGaInAs multiple quantum well MQW ring laser with radius of 350 μm was designed and realized. The experimental results show that the designed device, lasing at 1 563.2 nm with side mode suppression ratio higher than 20 dB, showed unidirectional bistability between the clockwise and counterclockwise modes.