Title :
Optical filters based on ring resonators with integrated semiconductor optical amplifiers in GaInAsP-InP
Author :
Rabus, Dominik G. ; Hamacher, Michael ; Troppenz, Ute ; Heidrich, Helmut
Author_Institution :
Fraunhofer Inst. Nachrichtentechnik-Heinrich-Hertz-Inst., Berlin, Germany
Abstract :
A key device in all-optical networks is the optical filter. A ring resonator filter with an integrated semiconductor optical amplifier (SOA) on the basis of GaInAsP-InP has been investigated and fabricated. A required passband shape of loss-compensated ring resonator filters can be custom-designed by the use of multiple coupled resonators. Results of single-, double-, and triple-ring resonators with integrated SOAs with free spectral ranges of 12.5, 25, and 50 GHz, respectively, are presented. A box-like filter response is obtained by the double- and triple-ring resonators using specific coupling coefficients.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; integrated optoelectronics; optical communication equipment; optical resonators; optical waveguide filters; semiconductor optical amplifiers; wavelength division multiplexing; GaInAsP-InP; all-optical networks; box-like filter response; coupling coefficients; integrated SOAs; integrated semiconductor optical amplifier; integrated semiconductor optical amplifiers; loss-compensated ring resonator filters; multiple coupled resonators; optical filters; passband shape; ring resonator filter; ring resonators; triple-ring resonators; Channel spacing; Optical filters; Optical losses; Optical resonators; Optical ring resonators; Passband; Resonator filters; Semiconductor optical amplifiers; Shape; Wavelength division multiplexing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2002.806692
