Theoretical S-bend profile for optimization of optical waveguide radiation losses

Author

Mustieles, F.J. ; Ballesteros, E. ; Baquero, P.

Author_Institution

Telefonica, Madrid, Spain

Volume

5

Issue

5

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

551

Lastpage

553

Abstract

High-density optical integrated circuits require curved waveguides with low radiation losses. The optimization of S-bend profiles that produce a minimum of pure bending losses is considered. The analytical profile that optimizes these losses in low-slope S-bends is presented, assuming an exponential representation for the bending losses per unit length. On the other hand, a numerical optimization procedure has been developed for curved waveguides with an arbitrary representation of the unitary bending losses. Some results are provided for LiNbO/sub 3/ waveguides, including a comparison between the optimal profile and other usual S-bend profiles.<>

Keywords

integrated optics; lithium compounds; optical losses; optical waveguide theory; optimisation; LiNbO/sub 3/; S-bend profile; analytical profile; curved waveguides; exponential representation; low radiation losses; low-slope S-bends; numerical optimization procedure; optical integrated circuits; optical waveguide radiation losses; optimization; planar waveguides; pure bending losses; unitary bending losses; Electron optics; Etching; Indium phosphide; Integrated optics; Optical bistability; Optical device fabrication; Optical losses; Optical waveguide theory; Optical waveguides; Photonic integrated circuits;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.215278

Filename

215278