Electrically Gain-Switched Vertical-Cavity Surface-Emitting Lasers

G. Hasnain, J. D. Wynn, A. Y. Cho, J. M. Wiesenfeld, T. C. Damen, J. Shah, Y. H. Wang

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

We report electrical gain-switching of a packaged vertical-cavity surface-emitting laser (VCSEL). Pulse durations as short as 24 ps at repetition rates up to 2 GHz were obtained from a four quantum well GaAs/AlGaAs VCSEL, which emits 0.8 mW continuous wave power in a single mode at room temperature and has a current threshold of 6 mA. Simultaneous measurement of the optical spectrum showed an almost transform limited line-width indicating ultralow chirp. Optical pumping with subpicosecond pulses of the same packaged devices, held at a constant electrical bias, yielded 22 ps pulses, in good agreement with the electrical pumping. Simple calculations show that the pulse duration obtained by gain-switching is limited by the design constraints necessary to operate the VCSEL continuous wave at room temperature with low-threshold current, high-quantum efficiency, and reasonable output power.

原文English
頁(從 - 到)6-9
頁數4
期刊IEEE Photonics Technology Letters
4
發行號1
DOIs
出版狀態Published - 1992 一月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 電氣與電子工程

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