Abstract
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.
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Supported by the National Natural Science Foundation of China (No. 61106052).
Xie Sheng, born in 1978, male, Dr, associate Prof.
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Xie, S., Guo, J., Guan, K. et al. Design and realization of InP/AlGaInAs multiple quantum well ring laser. Trans. Tianjin Univ. 20, 402–406 (2014). https://doi.org/10.1007/s12209-014-2387-3
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DOI: https://doi.org/10.1007/s12209-014-2387-3