Title :
Two-dimensional photonic crystal couplers with defect coupling region for wavelength division multi/demultiplexing
Author :
Albertoni, A. ; D´Orazio, A. ; De Sario, M. ; Petruzzelli, V. ; Prudenzano, F.
Author_Institution :
Dipt. di Elettrotecnica ed Elettronica, Politecnico di Bari, Italy
Abstract :
We propose a 3-port MUX/DEMUX structure, designed to separate n WDM channels in the range of 1500-1600 nm. The proposed structure has an advantage to change the refractive index value of the coupling rods of a PC coupler to optimize the performance of the WDM optical filters. The presence of the coupler in the PC structure substantially modified the transmission spectrum and transmission peaks (channels) appeared in the PC band gap. The change of refractive index of the coupling rods can be exploited to design optical switch and to reduce or enlarge a selected channel, without increasing the interaction length of the coupler.
Keywords :
channel allocation; demultiplexing; demultiplexing equipment; infrared spectra; light transmission; optical communication equipment; optical couplers; optical filters; optical waveguides; photonic crystals; photonic switching systems; refractive index; wavelength division multiplexing; WDM channel; WDM optical filter; band gap; coupling rod; defect coupling region; optical switch; optical waveguide; refractive index; transmission peak; transmission spectrum; two-dimensional photonic crystal coupler; wavelength division demultiplexing; wavelength division multiplexing; Couplers; Demultiplexing; Optical coupling; Optical design; Optical filters; Photonic band gap; Photonic crystals; Refractive index; Structural rods; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313578
