| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Multicolor InAs/InP(100) Quantum Dot Laser |
| LI Shi-Guo1**, GONG Qian2, CAO Chun-Fang2, WANG Xin-Zhong1, WANG Rui-Chun1, YUE Li2, LIU Qing-Bo2, WANG Hai-Long3
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1Department of Electronic Communication and Technology, Shenzhen Institute of Information Technology, 1068 West Nigang road, Shenzhen 518029
2State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050
3 College of Physics and Engineering, Qufu Normal University, Qufu 273165
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| Cite this article: |
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LI Shi-Guo, GONG Qian, CAO Chun-Fang et al 2011 Chin. Phys. Lett. 28 114212 |
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Abstract We report on a three-colour InAs/InP(100) quantum dot laser under continuous wave mode at an operation temperature of 20 °C. Three lasing peaks are observed simultaneously, the high-energy peak undergoes continuous blueshift, while the splitting energy gap between the low-energy peaks is somewhat fixed as the injection current increases. The maximum output power from one facet without coating is more than 34 mW with a slope efficiency of 102 mW/A just above the threshold current. Three peaks of differential efficiency of output power are observed, just corresponding to each peak in lasing spectra, respectively. At the same time, the far-field distribution shows only a single transverse mode over the full range of injection current.
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| Keywords:
42.62.Fi
78.67.Hc
42.55.Px
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Received: 18 September 2011
Published: 30 October 2011
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