Title :
Broadband mid-infrared generation using one-dimensional photonic bandgap waveguides
Author :
Das, Ritwick ; Thyagarajan, K.
Abstract :
We present a GaN/AlGaN based one-dimensional photonic crystal waveguide (1D-PCW) design for ultra-broadband mid-infrared generation in a quasi-phase-matched difference-frequency-generation (DFG) process. By optimally tailoring the phase- and group-velocity dispersion properties of symmetric 1D-PCWs, we show that the phase-matching condition for a DFG process could be maintained over a broad range of signal wavelengths leading to broadband mid-IR generation.
Keywords :
III-V semiconductors; aluminium compounds; gallium compounds; infrared sources; optical dispersion; optical phase matching; optical waveguides; photonic crystals; wide band gap semiconductors; 1D photonic bandgap waveguides; GaN-AlGaN; broadband midinfrared generation; group velocity dispersion; phase velocity dispersion; photonic crystal waveguide; quasi phase matched difference frequency generation; Frequency conversion; Gallium nitride; Geometry; Optical frequency conversion; Optical pulse generation; Optical waveguides; Photonic band gap; Photonic crystals; Physics; Signal processing;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424524
