Concepedia

AlGaAs/AlAs QW modulator for 6328 Å operation

P. Pezeshki, Susan Lord, Timothy B. Boykin, Barry L. Shoop, J. S. Harris

Electronics Letters · 1991 · 13 citations · 5 references

DOI

Concepts

Abstract

The first reflection measurements of an AlGaAs/AlAs quantum well modulator designed to operate at the He–Ne laser wavelength of 6328 Å are reported. Photocurrent measurements indicate large absorption changes in the QWs. The measured fractional reflectivity change of 7% was used to stabilise a He–Ne laser through negative feedback.

References

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