Title :
Optoelectronic RF signal mixing using an electroabsorption waveguide as an integrated photodetector/mixer
Author :
Shin, D.S. ; Li, G.L. ; Sun, C.K. ; Pappert, S.A. ; Loi, K.K. ; Chang, W.S.C. ; Yu, P.K.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
We demonstrate for the first time an electroabsorption (EA) waveguide utilized as an integrated photodetector/mixer for frequency conversion of radio frequency signals, through field-controlled absorption. Using an InAsP-GaInP multiple-quantum-well EA waveguide, a conversion loss of 18.9 dB was obtained at 10-mW optical local oscillator (LO) power, and a suboctave, two-tone spur-free dynamic range of 120.0 dB-Hz/sup 4/5/ was measured for an up-converted signal at 1.9 GHz. This scheme can be useful in antenna applications where optical LO signal distribution is used for frequency converting microwave signals.
Keywords :
III-V semiconductors; electro-optical devices; electroabsorption; gallium compounds; indium compounds; integrated optics; microwave photonics; optical frequency conversion; optical waveguides; photodetectors; semiconductor quantum wells; 10 mW; 18.9 dB; InAsP-GaInP; InAsP-GaInP multiple-quantum-well EA waveguide; antenna applications; conversion loss; electroabsorption waveguide; field-controlied absorptio; frequency conversion; frequency converting microwave signals; integrated photodetector/mixer; optical LO signal distribution; optical local oscillator power; optoelectronic RF signal mixing; radio frequency signals; suboctave two-tone spur-free dynamic range; two-tone spur-free dynamic range; up-converted signal; Electromagnetic wave absorption; Frequency conversion; Mixers; Optical losses; Optical mixing; Optical waveguides; Photodetectors; Quantum well devices; RF signals; Radio frequency;
Journal_Title :
Photonics Technology Letters, IEEE
