Monolithic integration of photodetector with vertical cavity surface emitting laser

D. Hasnain, K. Tai, Yeong-Her Wang, J. D. Wynn, K. D. Choquette, B. E. Weir, N. K. Dutta, A. Y. Cho

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


For the first time, monolithic integration of a photodetector with a vertical-cavity surface emitting laser (VCSEL) is demonstrated. We have designed and fabricated VCSELs with monolithically integrated pin photodetectors which dynamically monitor (and can thus control) the output power of the lasers. The VCSELs lase at room temperature and emit a highly coherent, low-divergence, circular beam directly from the top surface. The integrated photodetector shows a linear response to the laser emission with an effective responsivity of 0·25 A/W.

Original languageEnglish
Pages (from-to)1630-1632
Number of pages3
JournalElectronics Letters
Issue number18
Publication statusPublished - 1991 Aug 29

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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