Title :
Wavelength switching by mode interference between longitudinally coupled photonic crystal channel waveguides
Author :
Mahnkopf, S. ; Hsin, H. ; Duan, G.-H. ; Lelarge, F. ; Happ, T.D. ; Kamp, M. ; März, R. ; Forchel, A.
Author_Institution :
Technische Phys., Julius-Maximilians-Univ. Wurzburg, Germany
Abstract :
A wavelength switching mechanism of two longitudinally coupled and independently contacted photonic crystal channel waveguides is reported. The waveguides are coupled by a photonic crystal section of one period in Γ-M orientation. The cavity lengths are chosen such that the cavity modes exhibit slightly different mode spacings and allow for a wavelength switching by mode interference between the two cavities.
Keywords :
laser cavity resonators; laser modes; laser tuning; light interference; optical planar waveguides; photonic crystals; quantum well lasers; waveguide lasers; cavity mode spacings; coupled cavity laser diode; hexagonal lattice; highly integrated photonic circuits; longitudinally coupled waveguides; mode interference; photonic crystal array; photonic crystal channel waveguides; quantum well structure; refractive index; separate confinement heterostructure; tunable laser design; wavelength switching mechanism;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040009
