Tunable narrowband optical filter in photorefractive InGaAsP:Fe/InP:Fe singlemode waveguide

Author

Hervé, D. ; Viallet, J.E. ; Salaun, S. ; Le Corre, A. ; Delorme, F. ; Mainguet, B.

Author_Institution

Dept. Micro-Ondes, Telecom Bretagne, Brest, France

fYear

1997

fDate

11-15 May 1997

Firstpage

107

Lastpage

110

Abstract

Recently a new compact WDM spectrum analyser without moving parts was demonstrated using a bulk photorefractive InP:Fe crystal. With the aim of reducing the sweeping time by confining optical energy, a first optically tunable filter on a photorefractive singlemode waveguide was realized on an InP:Fe substrate. The device operates at the 1.55 μm wavelength and the tuning range is given by the tunable laser diode used for the control of the Bragg grating period. The bandwidth is 0.02 nm (2.5 GHz) and the intrinsic reflectivity is 2%

Keywords

III-V semiconductors; gallium arsenide; indium compounds; iron; optical waveguide filters; photorefractive materials; 1.55 micron; 2.5 GHz; Bragg grating; InGaAsP:Fe-InP:Fe; WDM spectrum analyser; optical energy confinement; photorefractive single-mode waveguide; reflectivity; sweeping time; tunable narrowband optical filter; Diode lasers; Laser tuning; Narrowband; Optical filters; Optical tuning; Optical waveguides; Photorefractive effect; Photorefractive materials; Tunable circuits and devices; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Indium Phosphide and Related Materials, 1997., International Conference on

Conference_Location

Cape Cod, MA

ISSN

1092-8669

Print_ISBN

0-7803-3898-7

Type

conf

DOI

10.1109/ICIPRM.1997.600042

Filename

600042