Slab-waveguide irradiation of UV laser light for photosensitive phase error compensation of arrayed-waveguide gratings

Author

Takada, Kazumasa ; Abe, Makoto

Author_Institution

NTT Photonics Labs., NTT Corp., Ibaraki, Japan

Volume

14

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

813

Lastpage

815

Abstract

The photosensitive refractive index change in a slab waveguide was utilized to compensate for the phase error of an arrayed-waveguide grating. The UV laser irradiation of a slab waveguide has certain advantages. The irradiation of several different parts of the waveguide can compensate for a large phase error of the order of ten radians. Phase error compensation can be achieved even when there is no space on the arrayed-waveguide part to place a mask for irradiation.

Keywords

diffraction gratings; error compensation; integrated optics; laser beam effects; optical arrays; optical crosstalk; optical planar waveguides; phase control; refractive index; ultraviolet radiation effects; AWGs; UV laser irradiation; adjacent crosstalk; arrayed-waveguide grating; mask window design; phase control; phased array; photosensitive phase error compensation; planar waveguides; slab-waveguide irradiation; transmission spectra; Arrayed waveguide gratings; Error compensation; Optical arrays; Optical refraction; Optical variables control; Optical waveguides; Phased arrays; Slabs; Waveguide lasers; Waveguide transitions;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.1003102

Filename

1003102