Title :
Efficient N×N star couplers using Fourier optics
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
A technique for constructing an efficient N×N star coupler with large N at optical frequencies is described. The coupler is realized in free space using two arrays, each connected to N single-mode fibers. The highest efficiencies are obtained using a planar arrangement of two linear arrays separated by a dielectric slab serving as free-space region. The coupler is suitable for mass production in integrated form, with efficiencies exceeding 35%
Keywords :
Fourier transform optics; integrated optics; optical couplers; optical fibres; optical workshop techniques; Fourier optics; N×N star couplers; dielectric slab; free-space region; linear arrays; planar arrangement; single-mode fibers; Absorption; Apertures; Dielectrics; Diffraction; Fourier transforms; Geometry; Optical fiber couplers; Slabs; Space technology;
Journal_Title :
Lightwave Technology, Journal of
