Minimization of damping in the electrooptic frequency response of high-speed Zn-diffusion single-mode vertical-cavity surface-emitting lasers

Jin Wei Shi, L. C. Yang, C. C. Chen, Y. S. Wu, S. H. Guol, Ying Jay Yang

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)

摘要

We utilize the Zn-diffusion technique to fabricate a single-mode high-speed 850-nm vertical-cavity surface-emitting laser. With this technique, we are able to minimize the thermal effect without greatly scaling down the diameter of the oxide-confined aperture. The demonstrated device has a 9-μm active diameter with which we can attain a bandwidth of 8 GHz, a small differential resistance (∼47 Ω), and a maximum output power of 3 mW. The single-mode characteristics can be sustained under dynamic operation for the whole bias current range. The dynamic measurement results indicate that with this single-mode device the damping-limited bandwidth of our multimode control can be eliminated without a Zn-diffusion aperture. A larger intrinsic bandwidth (32 versus 21 GHz) is also obtained due to the minimization of damping. The narrower divergence angle (8° versus 20° ) means that the device exhibits a larger alignment tolerance and much lower coupling loss (9 dB) when used with the standard multimode fiber than those of the control sample.

原文???core.languages.en_GB???
頁(從 - 到)2057-2059
頁數3
期刊IEEE Photonics Technology Letters
19
發行號24
DOIs
出版狀態已出版 - 15 12月 2007

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