Title :
An improved approach of optical loss measurement using photocurrent and optical transmission in an electroabsorption modulator
Author :
Shim, Jongin ; Liu, Bin ; Piprek, Joachim ; Bowers, John E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Kyungki-Do, South Korea
fDate :
6/1/2004 12:00:00 AM
Abstract :
We report an improved method to extract the optical absorption coefficient of a semiconductor electroabsorption modulator. Only the transmission and photocurrent data are needed with this method. The method makes it possible to obtain the optical coupling efficiency between laser and modulator, photocurrent conversion efficiency, and optical absorption coefficients from experimental data.
Keywords :
electro-optical modulation; electroabsorption; optical communication equipment; optical couplers; optical loss measurement; photoconductivity; quantum well devices; semiconductor quantum wells; electroabsorption modulator; laser; optical coupling efficiency; optical loss; optical loss measurement; optical transmission; photocurrent; semiconductor modulator; Absorption; Loss measurement; Optical films; Optical losses; Optical modulation; Optical scattering; Optical sensors; Optical waveguides; Photoconductivity; Propagation losses;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.827126
