TITLE

Direct measurement of the electric-field-dependent absorption coefficient in GaAs/AlGaAs multiple quantum wells

AUTHOR(S)
Wood, Thomas H.
PUB. DATE
May 1986
SOURCE
Applied Physics Letters;5/26/1986, Vol. 48 Issue 21, p1413
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Although large changes in the absorption coefficient of multiple quantum wells (MQW’s) with applied voltage have been reported, no accurate measurement of the minimum absorption coefficient, which determines the absorption component of the device insertion loss, has been reported. Using a new measurement technique, we measure this minimum absorption coefficient, and determine that, for a device with a 10:1 on/off ratio and a 7 dB insertion loss, absorption contributes 2.2 dB of the insertion loss. We are able to predict absorption losses of future devices and show that, by a slight change in operating wavelength, the absorption loss can be greatly reduced.
ACCESSION #
9819897

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics