Abstract

Strained-layer multiple quantum well (MQW) modulators have been developed which have an operating wavelength of 1 μm near high power neodymium lasers sources.^1,3 These modulators are desirable for use in parallel optical digital systems running at competitive dock rates where a large amount of optical power is required. Recent advances using differential imaging techniques allow the study of the modulation uniformity of these strained materials.⁴ Strain pressure present in the QWs shifts the exciton wavelength (and thereby the modulation wavelength) by an amount linearly related to the amount of pressure.

© 1992 Optical Society of America