Title :
Wavelength division action of a distributed single-mode fiber-to-symmetrical planar waveguide coupler
Author :
Andreev, Andrej Tz ; Panajotov, Krassimir P. ; Karakoleva, Elka I.
Author_Institution :
Inst. of Solid State Phys., Sofia, Bulgaria
Abstract :
Light transfer between a curved single-mode fiber and a planar waveguide is investigated experimentally in dependence on the light wavelength and for different refractive indices and thicknesses of the planar waveguide and for different polishing depths. A coupled mode model is applied to describe the coupler behavior, leading to a very good agreement with the experimental results. The action of the coupler as a narrowband filter and long pass edge filter is revealed.<>
Keywords :
optical couplers; optical fibres; optical filters; wavelength division multiplexing; coupled mode model; curved single-mode fiber; distributed single-mode fiber-to-symmetrical planar waveguide coupler; light transfer; long pass edge filter; narrowband filter; planar waveguide; polishing depths; refractive indices; wavelength division; Optical coupling; Optical fiber couplers; Optical fiber devices; Optical fiber filters; Optical fiber polarization; Optical refraction; Optical waveguides; Planar waveguides; Refractive index; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
