Title :
Extremely small polarization independent phased-array demultiplexers on InP
Author :
Bissessur, H. ; Pagnod-Rossiaux, P. ; Mestric, R. ; Martin, B.
Author_Institution :
Alcatel Alsthom Recherche, Marcoussis, France
fDate :
4/1/1996 12:00:00 AM
Abstract :
Compact, polarization insensitive phased-array wavelength demultiplexers are demonstrated with a deep ridge waveguide. Good agreement with the modeling is found for the birefringence and the refractive index. Zero birefringence is effectively obtained around 1.53 μm. The guiding structure allows curvatures of 100 μm; thus, the grating size of the 4- and 16-channel demultiplexers is reduced to 0.33×0.30 and 1.1×1.1 mm2, with crosstalk below -16 and -14 dB respectively. These are the smallest demultiplexers reported to date.
Keywords :
III-V semiconductors; arrays; birefringence; demultiplexing equipment; diffraction gratings; indium compounds; light polarisation; optical waveguide components; ridge waveguides; wavelength division multiplexing; 0.30 mm; 0.34 mm; 1.1 mm; 1.53 mum; 100 mum; 16-channel demultiplexers; 4-channel demultiplexers; InGaAsP; InP; birefringence; compact polarization insensitive phased-array wavelength demultiplexers; crosstalk; curvatures; deep ridge waveguide; extremely small polarization independent phased-array demultiplexers; grating size; guiding structure; modeling; refractive index; zero birefringence; Arrayed waveguide gratings; Birefringence; Etching; Indium phosphide; Optical fiber polarization; Optical waveguides; Phased arrays; Refractive index; Semiconductor waveguides; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
