Title :
Frequency dependent harmonic distortion in a multiple-quantum-well electroabsorption modulator
Author :
Hodiak, Justin H. ; Cheng, An-nien ; Sakamoto, Itaru ; Loi, K.K. ; Farwell, M.L. ; Hou, Hong Q. ; Chang, William S C
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
The frequency dependence of the harmonic distortion in a multiple quantum-well electroabsorption waveguide modulator is demonstrated for the first time. Low-frequency measurements agree with calculation of the harmonic distortion based upon the static nonlinear relationship between the intensity and the applied voltage. However, observed harmonic distortion at RF frequencies is significantly larger than the observed harmonic distortion due to low-frequency modulation. The frequency dependence of the harmonic indicates that a mechanism other than the nonlinear intensity-voltage relationship dominates at high frequency.<>
Keywords :
III-V semiconductors; electro-optical modulation; electroabsorption; harmonic distortion; indium compounds; optical waveguides; semiconductor quantum wells; InAsP-InP; RF frequencies; applied voltage; frequency dependence; frequency dependent harmonic distortion; harmonic distortion; intensity; low-frequency measurements; low-frequency modulation; multiple-quantum-well electroabsorption modulator; nonlinear intensity-voltage relationship; static nonlinear relationship; Absorption; Fiber nonlinear optics; Frequency dependence; Harmonic distortion; High speed optical techniques; Nonlinear optics; Optical distortion; Optical feedback; Optical modulation; Quantum well devices;
Journal_Title :
Photonics Technology Letters, IEEE
