About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
IEEE Photonics Technology Letters
Paper
The Frequency Behavior of InGaAs/AlInAs Metal - Semiconductor - Metal Photodetectors at Low Bias Voltages for Data Communication Applications
Abstract
We have fabricated lattice matched InGaAs/AlInAs metal-semiconductor-metal photodetectors on InP. The detectors have very low dark currents, low capacitance, and good responsivity, corresponding to at least 95% internal collection efficiency. We demonstrate multigigahertz bandwidths, as measured in the frequency domain, are achievable at typical logic-level bias voltages, and that therefore these detectors are a viable candidate for long wavelength data communication applications. © 1992 IEEE